Section 5 Service and Appearance Care



Page Contents

Service

Your dealer knows your vehicle best and wants you to be happy with it. We hope you will go to your dealer for all your service needs. You will get genuine GM parts and GM-trained and supported service people. We hope you will want to keep your GM vehicle all GM. Genuine GM parts have one of these marks:

Accessories and Modifications

When you add non-GM accessories to your vehicle they can affect your vehicle’s performance and safety, including such things as, airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like anti-lock brakes, traction control and stability control. Some of these accessories may even cause malfunction or damage not covered by warranty. GM Accessories are designed to complement and function with other systems on your vehicle. Your GM dealer/retailer can accessorize your vehicle using genuine GM Accessories. When you go to your GM dealer/retailer and ask for GM Accessories, you will know that GM-trained and supported service technicians will perform the work using genuine GM Accessories.

California Proposition 65 Warning

Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems (including some inside the vehicle), many fluids, and some component wear by-products contain and/or emit these chemicals.

Doing Your Own Service Work

CAUTION: You can be injured and your vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.

 • Be sure you have sufficient knowledge, experience, the proper replacement parts, and tools before you attempt any vehicle maintenance task.

• Be sure to use the proper nuts, bolts, and other fasteners. English and metric fasteners can be easily confused. If you use the wrong fasteners, parts can later break or fall off. You could be hurt.

If you want to do some of your own service work, you should use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information . Your vehicle has an airbag system. Before attempting to do your own service work, see Servicing Your Airbag-Equipped Vehicle . You should keep a record with all parts receipts and list the mileage and the date of any service work you perform. See Maintenance Record .

Adding Equipment to the Outside of Your Vehicle

Things you might add to the outside of your vehicle can affect the airflow around it. This may cause wind noise and affect windshield washer performance. Check with your dealer before adding equipment to the outside of your vehicle.

Fuel

Use of the recommended fuel is an important part of the proper maintenance of your vehicle. To help keep the engine clean and maintain optimum vehicle performance, GM recommends the use of gasoline advertised as TOP TIER Detergent Gasoline. The 8th digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies your vehicle’s engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) .

Gasoline Octane

If your vehicle has the 3800 V6 engine (VIN Code 2), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, you may notice an audible knocking noise when you drive, commonly referred to as spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, your engine needs service.

If your vehicle has the 3800 Supercharged V6 engine (VIN Code 4) or the 5.3L V8 engine (VIN Code C), use premium unleaded gasoline with a posted octane rating of 91 or higher. You may also use regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced, and you may notice a slight audible knocking noise, commonly referred to as spark knock. If the octane is less than 87, you may notice a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you might damage your engine. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, your engine needs service.

Gasoline Specifications

At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 in Canada. Some gasolines may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). General Motors recommends against the use of gasolines containing MMT. See Additives for additional information.

California Fuel

If your vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that meet California specifications. See the underhood emission control label. If this fuel is not available in states adopting California emissions standards, your vehicle will operate satisfactorily on fuels meeting federal specifications, but emission control system performance may be affected. The malfunction indicator lamp may turn on and your vehicle may fail a smog-check test. See Malfunction Indicator Lamp . If this occurs, return to your authorized GM dealer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty.

Additives

To provide cleaner air, all gasolines in the United States are now required to contain additives that will help prevent engine and fuel system deposits from forming, allowing your emission control system to work properly. In most cases, you should not have to add anything to your fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean, or if your vehicle experiences problems due to dirty injectors or valves, look for gasoline that is advertised as TOP TIER Detergent Gasoline. Also, your dealer has additives that will help correct and prevent most deposit-related problems.

Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may be available in your area. General Motors recommends that you use these gasolines if they comply with the specifications described earlier. However, E85 (85% ethanol) and other fuels containing more than 10% ethanol must not be used in vehicles that were not designed for those fuels. Notice: Your vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under your warranty. Some gasolines that are not reformulated for low emissions may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you buy gasoline whether the fuel contains MMT. General Motors recommends against the use of such gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the emission control system may be affected. The malfunction indicator lamp may turn on. If this occurs, return to your dealer for service.

Fuels in Foreign Countries

If you plan on driving in another country outside the United States or Canada, the proper fuel might be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by your warranty. To check the fuel availability, ask an auto club, or contact a major oil company that does business in the country where you will be driving.

Filling the Tank

CAUTION: Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the pump island. Turn off your engine when you are refueling. Do not smoke if you are near fuel or refueling your vehicle. Do not use cellular phones. Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended when refueling your vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump; never let children pump fuel.

The tethered fuel cap is located behind a hinged fuel door on the driver’s side of the vehicle. To remove the fuel cap, turn it slowly counterclockwise. The fuel cap has a spring in it; if the cap is released too soon, it will spring back to the right. While refueling, let the fuel cap hang by the tether below the fuel fill opening.

CAUTION: Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and then something ignites it, you could be badly burned. This spray can happen if your tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any hiss noise to stop. Then unscrew the cap all the way.

Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible. See Washing Your Vehicle . When replacing the fuel cap, turn it clockwise until it clicks. Make sure the cap is fully installed. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp . The CHECK GAS CAP message will be displayed on the Driver Information Center (DIC) if the fuel cap is not properly installed. See DIC Warnings and Messages for more information.

CAUTION: If a fire starts while you are refueling, do not remove the nozzle. Shut off the flow of fuel by shutting off the pump or by notifying the station attendant. Leave the area immediately.

Notice: If you need a new fuel cap, be sure to get the right type. Your dealer/retailer can get one for you. If you get the wrong type, it may not fit properly. This may cause your malfunction indicator lamp to light and may damage your fuel tank and emissions system. See Malfunction Indicator Lamp .

Filling a Portable Fuel Container

CAUTION: Never fill a portable fuel container while it is in your vehicle. Static electricity discharge from the container can ignite the gasoline vapor. You can be badly burned and your vehicle damaged if this occurs. To help avoid injury to you and others:

• Dispense gasoline only into approved containers.

• Do not fill a container while it is inside a vehicle, in a vehicle’s trunk, pickup bed, or on any surface other than the ground.

• Bring the fill nozzle in contact with the inside of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete.

• Do not smoke while pumping gasoline.

• Do not use a cellular phone while pumping gasoline.

Checking Things Under the Hood

CAUTION: An electric fan under the hood can start up and injure you even when the engine is not running. Keep hands, clothing, and tools away from any underhood electric fan.

CAUTION: Things that burn can get on hot engine parts and start a fire. These include liquids like fuel, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine.

Hood Release

To open the hood, do the following: 1. Pull the hood release handle with this symbol on it. It is located inside the vehicle near the parking brake pedal.

2. Go to the front of the vehicle and release the secondary hood latch, located near the center front of the engine compartment, by moving it to the right.

3. Lift the hood. Before closing the hood, be sure all the filler caps are on properly. Then pull the hood down and close it firmly.

Engine Compartment Overview

When you open the hood on the 3800 V6 Supercharged engine (3800 V6 engine similar), here is what you will see:

A. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” under Windshield Washer Fluid .

B. Battery. See Battery .

C. Remote Positive (+) Terminal. See Jump Starting .

D. Underhood Fuse Block. See Underhood Fuse Block .

 E. Engine Coolant Recovery Tank. See Cooling System .

 F. Pressure Cap. See Pressure Cap .

 G. Power Steering Fluid Reservoir (low in engine compartment). See Power Steering Fluid .

H. Supercharger Oil Fill Location (If Equipped). See Supercharger Oil .

 I. Electric Cooling Fan. See Cooling System .

 J. Engine Oil Dipstick. See “Checking Engine Oil” under Engine Oil .

 K. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil .

 L. Engine Coolant Bleed Valve. See “How to Add Coolant to the Radiator” under Cooling System .

M. Automatic Transaxle Fluid Dipstick. See “Checking the Fluid Level” under Automatic Transaxle Fluid .

N. Brake Master Cylinder Reservoir. See “Brake Fluid” under Brakes .

 O. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

When you open the hood on the 5.3L V8 engine, here is what you will see:

A. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” under Windshield Washer Fluid .

B. Battery. See Battery .

 C. Underhood Fuse Block. See Underhood Fuse Block .

D. Remote Positive (+) Terminal. See Jump Starting .

E. Pressure Cap. See Pressure Cap .

 F. Power Steering Fluid Reservoir. See Power Steering Fluid .

 G. Engine Oil Dipstick. See “Checking Engine Oil” under Engine Oil .

H. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil .

 I. Automatic Transaxle Fluid Dipstick. See “Checking the Fluid Level” under Automatic Transaxle Fluid .

J. Brake Master Cylinder Reservoir. See “Brake Fluid” under Brakes .

K. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

L. Engine Coolant Recovery Tank. See Cooling System .

Engine Oil

If this symbol, along with the LOW OIL LEVEL message appears on the Driver Information Center (DIC), check the engine oil level right away. For more information, see LOW OIL LEVEL under DIC Warnings and Messages . You should check the engine oil level regularly; this is an added reminder.

Checking Engine Oil It is a good idea to check the engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview for the location of the engine oil dipstick.

1. Turn off the engine and give the oil several minutes to drain back into the oil pan. If you do not do this, the oil dipstick might not show the actual level.

2. Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level.

When to Add Engine Oil

5.3L V8 Engine

If the oil is below the cross-hatched area at the tip of the dipstick, you need to add at least one quart/liter of oil. But you must use the right kind. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications . Notice: Do not add too much oil. If the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged.

See Engine Compartment Overview for the location of the engine oil fill cap. Be sure to add enough oil to put the level somewhere in the proper operating range in the cross-hatched area. Push the dipstick all the way back in when you are through.

What Kind of Engine Oil to Use

Look for three things:

 • GM6094M Your vehicle’s engine requires oil meeting GM Standard GM6094M. Look for and use only an oil that meets GM Standard GM6094M.

 • SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.

Oils meeting these requirements should have the starburst symbol on the container. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). Look for this information on the oil container, and use only those oils that are identified as meeting GM Standard GM6094M and have the starburst symbol on the front of the oil container. Notice: Use only engine oil identified as meeting GM Standard GM6094M and showing the American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty.

If you are in an area of extreme cold, where the temperature falls below 20°F ( 29°C), it is recommended that you use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both provide easier cold starting and better protection for the engine at extremely low temperatures. Engine Oil Additives Do not add anything to the engine oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you need for good performance and engine protection.

Engine Oil Life System

When to Change Engine Oil

 Your vehicle has a computer system that lets you know when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil life system to work properly, you must reset the system every time the oil is changed. When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE OIL SOON message will come on. See DIC Warnings and Messages . Change the oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset. Your dealer/retailer has trained service people who will perform this work using genuine parts and reset the system. It is also important to check the oil regularly and keep it at the proper level. If the system is ever reset accidentally, you must change the oil at 3,000 miles (5 000 km) since the last oil change. Remember to reset the oil life system whenever the oil is changed.

How to Reset the Engine Oil Life System

 The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where you change the oil prior to a CHANGE OIL SOON message appearing on the DIC, reset the system. To reset the oil life system, after the oil has been changed:

1. Press the options button on the DIC until ENGINE OIL MONITOR appears on the DIC screen.

 2. Press the set/reset button to reset the system. The next screen indicates that the engine oil monitor system has been reset. If the vehicle is equipped with the trip computer DIC, when the gage button is pressed and the OIL LIFE REMAINING mode appears, it should read 100 percent OIL LIFE REMAINING.

3. Turn the key to OFF. If the CHANGE OIL SOON message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure.

What to Do with Used Oil

 Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer’s warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of used oil, ask your dealer/retailer, a service station, or a local recycling center for help.

Supercharger Oil

Because they are technically qualified and have the proper tools, you should have your dealer perform this maintenance. When to Check See Additional Required Services for when the oil level should be checked. What Kind of Oil to Use Use only the recommended supercharger oil. See Recommended Fluids and Lubricants .

Engine Air Cleaner/Filter

The engine air cleaner/filter is located in the engine compartment on the driver’s side of the vehicle. See Engine Compartment Overview for more information on location. When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the Maintenance II intervals and replace it at the first oil change after each 50,000 mile (83 000 km) interval. See Scheduled Maintenance for more information. If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.

How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter do the following:

3800 V6 Supercharged Engine shown, 3800 V6 Engine similar
5.3L V8 Engine

1. Lift the filter cover tabs on top of the engine air cleaner/filter housing.

 2. Push the filter cover housing toward the engine.

3. Pull out the filter.

 4. Inspect or replace the engine air cleaner/filter.

5. To reinstall the cover, position the tabs through the slots on the housing. If your vehicle has one of the 3800 V6 engines, a notch on the sides of the filter cover will indicate the correct engagement.

 6. Push the cover tabs on top of the housing to lock the cover in place.

CAUTION: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off.

Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving.

Automatic Transaxle Fluid

When to Check and Change Automatic

Transaxle Fluid A good time to check the automatic transaxle fluid level is when the engine oil is changed. Change the fluid and filter at the intervals listed in Additional Required Services , and be sure to use the transaxle fluid listed in Recommended Fluids and Lubricants .

How to Check Automatic Transaxle Fluid

Because this operation can be a little difficult, you may choose to have this done at the dealership service department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading on the dipstick.

Notice: Too much or too little fluid can damage the transaxle. Too much can mean that some of the fluid could come out and fall on hot engine or exhaust system parts, starting a fire. Too little fluid could cause the transaxle to overheat. Be sure to get an accurate reading if you check the transaxle fluid. Wait at least 30 minutes before checking the transaxle fluid level if you have been driving:

 • When outside temperatures are above 90°F (32°C).

• At high speed for quite a while.

• In heavy traffic — especially in hot weather.

• While pulling a trailer.

To get the right reading, the fluid should be at normal operating temperature, which is 180°F to 200°F (82°C to 93°C). Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50°F (10°C). If it is colder than 50°F (10°C), you may have to drive longer.

Checking the Fluid Level

Prepare the vehicle as follows:

1. Park the vehicle on a level place. Keep the engine running.

2. With the parking brake applied, place the shift lever in PARK (P).

 3. With your foot on the brake pedal, move the shift lever through each gear, pausing for about three seconds in each one. Then, position the shift lever in PARK (P).

 4. Let the engine run at idle for three to five minutes. Then, without shutting off the engine, follow these steps:

The transaxle fluid dipstick handle has this symbol on it, and is located near the rear of the engine compartment. See Engine Compartment Overview for more information on location.

1. Pull out the dipstick and wipe it with a clean rag or paper towel.

2. Push it back in all the way, wait three seconds and then pull it back out again.

3. Check both sides of the dipstick, and read the lower level. The fluid level must be in the crosshatched area.

4. If the fluid level is in the acceptable range, push the dipstick back in all the way.

How to Add Automatic Transaxle Fluid

Refer to the Maintenance Schedule to determine what kind of transaxle fluid to use. See Recommended Fluids and Lubricants . If the fluid level is low, add only enough of the proper fluid to bring the level into the crosshatched area on the dipstick.

1. Pull out the dipstick.

2. Using a long-neck funnel, add enough fluid at the dipstick hole to bring it to the proper level. It does not take much fluid, generally less than one pint (0.5 L). Do not overfill.

 Notice: Use of the incorrect automatic transaxle fluid may damage your vehicle, and the damages may not be covered by your warranty. Always use the automatic transaxle fluid listed in Recommended Fluids and Lubricants .

 3. After adding fluid, recheck the fluid level as described under “How to Check Automatic Transaxle Fluid,” earlier in this section.

 4. When the correct fluid level is obtained, push the dipstick back in all the way.

Engine Coolant

The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for five years or 150,000 miles (240 000 km), whichever occurs first, if only DEX-COOL® extended life coolant is added. The following explains the cooling system and how to add coolant when it is low. If there is a problem with engine overheating or if coolant needs to be added to the radiator, see Engine Overheating . A 50/50 mixture of clean, drinkable water and DEX-COOL® engine coolant will:

• Give freezing protection down to 34°F ( 37°C).

• Give boiling protection up to 265°F (129°C).

• Protect against rust and corrosion.

• Help keep the proper engine temperature.

• Let the warning lights and gages work as they should.

Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant may require changing sooner, at the first maintenance service after each 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL® (silicate-free) coolant in your vehicle. What to Use Use a mixture of one-half clean, drinkable water and one-half DEX-COOL® engine coolant which will not damage aluminum parts. If this coolant mixture is used, nothing else needs to be added.

CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you would not get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant.

Notice: If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core, and other parts. If coolant needs to be added more than four times a year, have your dealer check the cooling system. Notice: If you use extra inhibitors and/or additives in your vehicle’s cooling system, you could damage your vehicle. Use only the proper mixture of the engine coolant listed in this manual for the cooling system. See Recommended Fluids and Lubricants for more information.

Checking Coolant

The coolant recovery tank cap has this symbol on it. See Engine Compartment Overview for more information on the location of the coolant recovery tank. The vehicle must be on a level surface when checking the coolant level. When the engine is cold, the coolant level should be at the cold fill line or a little higher. The cold fill line is marked with the same symbol as the coolant recovery tank cap. Adding Coolant If more coolant is needed, add the proper DEX-COOL® coolant mixture at the coolant recovery tank, but be careful not to spill it. If the coolant recovery tank is completely empty, add coolant to the radiator. See Engine Overheating .

CAUTION: Turning the pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. With the coolant recovery tank, you will almost never have to add coolant at the radiator. Never turn the pressure cap — even a little — when the engine and radiator are hot.

CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

Occasionally check the coolant level in the radiator. For information on how to add coolant to the radiator, see Cooling System .

Pressure Cap

Notice: If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured. See Engine Compartment Overview for more information on location.

Engine Overheating

There is a coolant temperature gage and a warning light on the instrument panel that indicate an overheated engine condition. See Engine Coolant Temperature Gage and Engine Coolant Temperature Warning Light .

If Steam Is Coming From Your Engine

CAUTION: Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when the vehicles engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle until the engine is cool. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency.

Notice: If your engine catches fire because you keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency.

 If No Steam is Coming From Your

 Engine An overheat warning can indicate a serious problem. If you get an engine overheat warning but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you:

• Climb a long hill on a hot day.

• Stop after high-speed driving.

• Idle for long periods in traffic.

 • Tow a trailer.

If an overheat warning occurs without any sign of steam, try this for a minute or so:

1. In heavy traffic, let the engine idle in NEUTRAL (N) while stopped. If it is safe to do so, pull off the road, shift to PARK (P) or NEUTRAL (N) and let the engine idle.

2. Set the heater at the highest setting and the fan at the highest speed and open the windows as necessary.

If the overheat warning no longer exists, the vehicle can be driven. Just to be safe, drive slower for about 10 minutes. If the warning does not come back on, the vehicle can be driven normally. If the warning continues, and you have not stopped, pull over, stop, and park the vehicle right away. If there is still no sign of steam, idle the engine for three minutes while parked. If the warning is still there, turn off the engine and get everyone out of the vehicle until it cools down. Also, see “Overheated Engine Protection Operating Mode” later in this section. You may decide not to lift the hood but to get service help right away.

Overheated Engine Protection Operating Mode

The overheated engine protection operating mode allows the vehicle to be driven to a safe place in an emergency situation. If an overheated engine condition exists, this protection mode alternates firing groups of cylinders to help prevent engine damage. In this mode, there will be a significant loss in power and engine performance. The engine coolant temperature gage indicator will move to the shaded area, and the engine coolant temperature warning light will come on, showing that an overheated engine condition exists. Driving extended miles (km) and/or towing a trailer in the overheated engine protection mode should be avoided. Notice: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss, change the oil and reset the oil life system. See Engine Oil .

Cooling System

When you decide it is safe to lift the hood, here is what you will see:

3800 V6 Supercharged Engine shown, 3800 V6 Engine similar

A. Coolant Recovery Tank
B. Electric Engine Cooling Fan(s)
C. Pressure Cap

5.3L V8 Engine

A. Pressure Cap
B. Electric Engine Cooling Fans
C. Coolant Recovery Tank

CAUTION: An electric engine cooling fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing, and tools away from any underhood electric fan.

If the coolant inside the coolant recovery tank is boiling, do not do anything else until it cools down. The vehicle should be parked on a level surface. The coolant recovery tank is located in the rear of the engine compartment on the passenger’s side of the vehicle on the 3800 V6 engines. The coolant recovery tank on the 5.3L V8 engine is located in the rear of the engine compartment on the driver’s side of the vehicle, behind the engine air cleaner/filter. When the engine is cold, the coolant level should be at or above the cold fill line on the coolant recovery tank. To check the coolant level, look for the cold fill line on the side of the coolant recovery tank that faces the engine. If the level is not correct, there may be a leak at the pressure cap or in the radiator hoses, heater hoses, radiator, water pump, or somewhere else in the cooling system.

CAUTION: Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.

If there seems to be no leak, with the engine on, check to see if the electric engine cooling fan(s) are running. If the engine is overheating, the fan(s) should be running. If the fan(s) are not running, the vehicle needs service. Notice: Engine damage from running your engine without coolant is not covered by your warranty. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL® (silicate-free) coolant in your vehicle.

How to Add Coolant to the Coolant Recovery Tank

CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you would not get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant.

If you have not found a problem yet, but the coolant level is not at the cold fill line, add a 50/50 mixture of clean, drinkable water and DEX-COOL® engine coolant at the coolant recovery tank. See Engine Coolant for more information. Notice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture.

CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

When the coolant level in the coolant recovery tank is at the cold fill line, start the vehicle. If the overheat warning continues, there is one more thing you can try. You can add the proper coolant mixture directly to the radiator, but be sure the system is cool before you do it.

CAUTION: Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the pressure cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the pressure cap, is hot. Wait for the cooling system and pressure cap to cool if you ever have to turn the pressure cap.

How to Add Coolant to the Radiator (3800 V6 Engines)

 Notice: Your engine has a specific radiator fill procedure. Failure to follow this procedure could cause your engine to overheat and be severely damaged.

3800 V6 Supercharged Engine shown, 3800 V6 Engine similar

1. You can remove the pressure cap when the cooling system, including the pressure cap and upper radiator hose, is no longer hot. Turn the cap slowly counterclockwise. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.

2. Then keep turning the pressure cap and remove it.

CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

3. Remove the Series III V6 engine cover shield to access the bleed valve.

3.1. Clean the area around the engine oil fill tube and cap before removing. Twist the oil fill tube, with cap attached, counterclockwise and remove it.

3800 V6 Engine
3800 V6 Supercharged Engine

3.2. Lift the engine cover shield at the front, slide the catch tab out of the engine bracket and remove the cover shield.

3.3. Put the oil fill tube, with cap attached, in the valve cover oil fill hole until you are ready to replace the cover shield

Thermostat Housing

4. After the engine cools, open the coolant air bleed valve located on the thermostat housing near the upper radiator hose.

3800 V6 Supercharged Engine shown, 3800 V6 Engine similar

5. Fill the radiator with the proper DEX-COOL® coolant mixture, up to the base of the filler neck. See Engine Coolant for more information about the proper coolant mixture. If you see a stream of coolant coming from the air bleed valve, close the valve. Otherwise, close the valve after the radiator is filled.

6. Rinse or wipe any spilled coolant from the engine and the compartment.

7. Replace the 3800 Series III V6 engine cover shield.

7.1. Remove the oil fill tube, with cap attached, from the valve cover.

7.2. Insert the catch tab on the cover shield under the bracket on the engine.

7.3. Place the hole in the cover shield over the hole in the valve cover. Install oil fill tube and cap by twisting clockwise.

 8. Then fill the coolant recovery tank to the cold fill line.

 9. Put the cap back on the coolant recovery tank, but leave the pressure cap off.

3800 V6 Supercharged Engine shown, 3800 V6 Engine similar

10. Start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan(s).

11. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOL® coolant mixture through the filler neck until the level reaches the base of the filler neck.

12. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the pressure cap is hand-tight and fully seated.

13. Check the coolant in the recovery tank. The level in the coolant recovery tank should be at the cold fill line when the engine is cold.

How to Add Coolant to the Cooling System (5.3L V8 Engine) Notice: Your engine has a specific cooling system drain and fill procedure. Failure to follow this procedure could cause your engine to overheat and be severely damaged. If your engine’s cooling system needs to be drained and re-filled, please see your dealer/retailer.

You can remove the pressure cap when the cooling system, including the pressure cap and upper radiator hose is no longer hot. Turn the pressure cap slowly counterclockwise.

1. If you hear a hiss, wait for that to stop. A hiss means that there is still some pressure left.

 2. Then keep turning the pressure cap to remove the pressure cap.

CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

3. Fill the cooling system with the proper DEX-COOL® coolant mixture, up to the base of the filler neck. See Engine Coolant for more information about the proper coolant mixture.

4. Rinse or wipe any spilled coolant from the engine and the compartment.

5. Then fill the coolant recovery tank to the cold fill line.

6. Install the coolant recovery tank cap and the pressure cap.

7. If the coolant in the recovery tank is constantly low, you should have a dealership service department inspect your vehicle for leaks.

Power Steering Fluid

See Engine Compartment Overview forn reservoir location.

When to Check Power Steering Fluid

 It is not necessary to regularly check power steering fluid unless a leak is suspected in the system, or an unusual noise is heard. A fluid loss in this system could indicate a problem. Have the system inspected and repaired.

How to Check Power Steering Fluid

To check the power steering fluid, do the following:

1. Turn the key off and let the engine compartment cool down.

2. Wipe the cap and the top of the reservoir clean.

3. Unscrew the cap and wipe the dipstick with a clean rag.

4. Replace the cap and completely tighten it.

5. Remove the cap again and look at the fluid level on the dipstick

The fluid level should be between the ADD and HOT marks when the engine is cold. When the engine compartment is hot, the level should be at the HOT mark. If the fluid is at the ADD mark when the engine is cold or hot, power steering fluid should be added.

 What to Use

 To determine what kind of fluid to use, see Recommended Fluids and Lubricants . Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.

Windshield Washer Fluid

 What to Use

When you need windshield washer fluid, be sure to read the manufacturer’s instructions before use. If you will be operating the vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.

Adding Washer Fluid

When the windshield washer fluid reservoir is low, a LOW WASHER FLUID message along with the washer symbol, comes on in the Driver Information Center (DIC). See DIC Warnings and Messages for more information.

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview for reservoir location.

Notice:

• When using concentrated washer fluid, follow the manufacturer’s instructions for adding water.

 • Do not mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water does not clean as well as washer fluid.

• Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.

 • Do not use engine coolant (antifreeze) in your windshield washer. It can damage the vehicle’s windshield washer system and paint.

Brakes

Brake Fluid

The brake master cylinder reservoir is filled with DOT-3 brake fluid. See Engine Compartment Overview for the location of the reservoir.

There are only two reasons why the brake fluid level in the reservoir might go down. The first is that the brake fluid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake system. If it is, you should have the brake system fixed, since a leak means that sooner or later the brakes will not work well.

So, it is not a good idea to top off the brake fluid. Adding brake fluid will not correct a leak. If you add fluid when the linings are worn, then you will have too much fluid when you get new brake linings. You should add or remove brake fluid, as necessary, only when work is done on the brake hydraulic system.

CAUTION: If your vehicle has too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system.

When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light . What to Add When you need brake fluid, use only DOT-3 brake fluid. Use new brake fluid from a sealed container only. See Recommended Fluids and Lubricants . Always clean the brake fluid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir.

CAUTION: With the wrong kind of fluid in the brake system, the brakes may not work well. This could cause a crash. Always use the proper brake fluid.

Notice:

• Using the wrong fluid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake system can damage brake system parts so badly that they will have to be replaced. Do not let someone put in the wrong kind of fluid.

• If you spill brake fluid on your vehicle’s painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on your vehicle. If you do, wash it off immediately. See Washing Your Vehicle .

 Brake Wear

Your vehicle has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be heard all the time your vehicle is moving, except when you are pushing on the brake pedal firmly.

CAUTION: The brake wear warning sound means that soon the brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced.

Notice: Continuing to drive with worn-out brake pads could result in costly brake repair. Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes.

Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to torque specifications in Capacities and Specifications . Brake linings should always be replaced as complete axle sets.

Brake Pedal Travel

See your dealer/retailer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required.

Brake Adjustment

Every time you apply the brakes, with or without the vehicle moving, the brakes adjust for wear.

Replacing Brake System Parts

The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality brake parts. When you replace parts of the braking system — for example, when the brake linings wear down and you need new ones put in — be sure you get new approved replacement parts. If you do not, the brakes might not work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between the front and rear brakes can change — for the worse. The braking performance you have come to expect can change in many other ways if someone puts in the wrong replacement brake parts.

Battery

Your vehicle has a maintenance free battery. When it is time for a new battery, get one that has the replacement number shown on the original battery’s label. We recommend an ACDelco® replacement battery. See Engine Compartment Overview for battery location. Warning: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. If the battery has a very low charge or is dead, you may not be able to remove the ignition key from the ignition switch or shift out of PARK (P). Refer to Shifting Out of Park (P) . Vehicle Storage If you are not going to drive your vehicle for 25 days or more, remove the black, negative ( ) cable from the battery. This will help keep the battery from running down.

CAUTION: Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting for tips on working around a battery without getting hurt.

Jump Starting

If your vehicle’s battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely.

CAUTION: Batteries can hurt you. They can be dangerous because: • They contain acid that can burn you. • They contain gas that can explode or ignite. • They contain enough electricity to burn you. If you do not follow these steps exactly, some or all of these things can hurt you.

Notice: Ignoring these steps could result in costly damage to your vehicle that would not be covered by your warranty. Trying to start your vehicle by pushing or pulling it will not work, and it could damage your vehicle.

1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. Notice: If the other vehicle’s system is not a 12-volt system with a negative ground, both vehicles can be damaged. Only use vehicles with 12-volt systems with negative grounds to jump start your vehicle.

2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles are not touching each other. If they are, it could cause a ground connection you do not want. You would not be able to start your vehicle, and the bad grounding could damage the electrical systems. To avoid the possibility of the vehicles rolling, set the parking brake firmly on both vehicles involved in the jump start procedure. Put an automatic transaxle in PARK (P) or a manual transaxle in NEUTRAL before setting the parking brake.

Notice: If you leave your radio or other accessories on during the jump starting procedure, they could be damaged. The repairs would not be covered by your warranty. Always turn off your radio and other accessories when jump starting your vehicle.

3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or the accessory power outlet. Turn off the radio and all lamps that are not needed. This will avoid sparks and help save both batteries. And it could save the radio!

4. Open the hood on the other vehicle and locate the positive (+) and negative ( ) terminal locations on that vehicle. You will not use your vehicle’s battery for jump starting. It has a remote positive (+) jump starting terminal, located on the underhood fuse block, for that purpose.

3800 V6 and 3800 V6 Supercharged Engines

If your vehicle has one of the 3800 V6 engines, to uncover the remote positive (+) terminal, press the tab at the bottom of the fuse block and lift the cover up.

If your vehicle has the 5.3L V8 engine, to uncover the remote positive (+) terminal, remove the fuse block cover.

5.3L V8 Engine

Always use the remote positive (+) terminal instead of the positive (+) terminal on the battery. See Engine Compartment Overview for more information on location.

CAUTION: An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

CAUTION: Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running.

CAUTION: Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the battery has enough water. You do not need to add water to the battery installed in your new vehicle. But if a battery has filler caps, be sure the right amount of fluid is there. If it is low, add water to take care of that first. If you do not, explosive gas could be present. Battery fluid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately.

5. Check that the jumper cables do not have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged too. Before you connect the cables, here are some basic things you should know. Positive (+) will go to positive (+) or to a remote positive (+) terminal if the vehicle has one. Negative will go to a heavy, unpainted metal engine part or to a remote negative (- ) terminal if the vehicle has one. Do not connect positive (+) to negative (- ), or you will get a short that would damage the battery and maybe other parts too. And do not connect the negative (- ) cable to the negative (-) terminal on the dead battery because this can cause sparks.

6. Connect the red positive (+) cable to the positive (+) terminal location on the vehicle with the dead battery. Use a remote positive (+) terminal if the vehicle has one.

7. Do not let the other end touch metal. Connect it to the positive (+) terminal location on the vehicle with the good battery. Use a remote positive (+) terminal if the vehicle has one.

 8. Now connect the black negative (- ) cable to the negative ( -) terminal location on the vehicle with the good battery. Use a remote negative (- ) terminal if the vehicle has one. Do not let the other end touch anything until the next step. The other end of the negative (- ) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part or to a remote negative (–) terminal on the vehicle with the dead battery.

 9. Connect the other end of the negative ( -) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less.

10. Now start the vehicle with the good battery and run the engine for a while.

11. Try to start the vehicle that had the dead battery. If it will not start after a few tries, it probably needs service.

Notice: If the jumper cables are connected or removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by your warranty. Always connect and remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal.

Jumper Cable Removal

A. Heavy, Unpainted Metal Engine Part or Remote Negative (- ) Terminal

B. Good Battery or Remote Positive (+) and Remote Negative (- ) Terminals

C. Dead Battery or Remote Positive (+) Terminal To disconnect the jumper cables from both vehicles, do the following:

1. Disconnect the black negative (- ) cable from the vehicle that had the dead battery.

2. Disconnect the black negative (- ) cable from the vehicle with the good battery.

 3. Disconnect the red positive (+) cable from the vehicle with the good battery.

 4. Disconnect the red positive (+) cable from the other vehicle.

5. Return the remote positive (+) terminal cover to its original position.

Headlamp Aiming

The visual optical headlamp aiming system has been preset at the factory and should need no further adjustment. However, If the vehicle is damaged in an accident, the headlamp aim may be affected and adjustment may be necessary. If oncoming vehicles flash their high beams at you, this may also mean the vertical aim needs to be adjusted. It is recommended that the vehicle is taken to your dealer/retailer for service if the headlamps need to be re-aimed. It is possible however, to re-aim the headlamps as described in the following procedure. The vehicle should be properly prepared as follows:

• The vehicle should be placed so the headlamps are 25 ft. (7.6 m) from a light colored wall.

• The vehicle must have all four tires on a perfectly level surface which is level all the way to the wall.

 • The vehicle should be placed so it is perpendicular to the wall.

 • The vehicle should not have any snow, ice, or mud on it.

• The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done.

 • The vehicle should be normally loaded with a full tank of fuel and one person or 160 lbs (75 kg) sitting on the driver’s seat.

• Tires should be properly inflated. Headlamp aiming is done with the low-beam headlamps. The high-beam headlamps will be correctly aimed if the low-beam headlamps are aimed properly.

To adjust the vertical aim, do the following:

1. Open the hood. See Hood Release for more information. Find the aim dot on the lens of the low-beam lamp.

2. Locate the aim dot on the lens of the low-beam headlamp.

3. Measure the distance from the ground to the aim dot on the lamp. Record the distance.

4. At the wall measure from the ground upward (A) to the recorded distance from Step 3 and mark it.

5. Draw or tape a horizontal line (B) on the wall the width of the vehicle at the height of the mark in Step 4.

 6. Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the headlamp not being aimed. This should allow only the beam of light from the headlamp being aimed to be seen on the flat surface. Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause excessive heat build-up which may cause damage to the headlamp.

Driver’s Side shown

7. Locate the vertical headlamp aiming screws, which are under the hood, near the headlamps. Turn the vertical aiming screw until the headlamp beam is aimed to the horizontal tape line. The adjustment screws can be turned with a 6 mm hex key bit socket or a 6 mm hex key.

8. Turn the vertical aiming screw until the headlamp beam is aimed to the horizontal tape line. Turn it clockwise or counterclockwise to raise or lower the angle of the beam.

 9. Make sure that the light from the headlamp is positioned at the bottom edge of the horizontal tape line. The lamp on the left (A) shows the correct headlamp aim. The lamp on the right (B) shows the incorrect headlamp aim.

10. Repeat Steps 7 through 9 for the opposite headlamp.

Bulb Replacement

For the proper type of replacement bulbs, see Replacement Bulbs . For any bulb changing procedure not listed in this section, contact your dealer.

Halogen Bulbs

CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

Headlamps and Sidemarker Lamps

To replace a headlamp or sidemarker bulb:

A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp

  1. Open the hood. See Hood Release for more information.

2. Locate the metal retaining clip. Remove the bolt.

3. Pull up half-way on the metal retaining clip while pushing rearward on the headlamp. Align the square cut-out on the retaining clip with the notch on the headlamp.

4. Pull the headlamp assembly straight out from the vehicle. Moving the headlamp up and down slightly may help with its removal.

A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp

5. Turn the bulb socket ring one-quarter of a turn counterclockwise to remove it from the headlamp assembly.

6. Pull the old bulb from the socket.

7. Place the new bulb into the socket.

8. Turn the bulb socket ring one-quarter turn clockwise to reinstall it back into the headlamp assembly. 9. Carefully reinstall the headlamp assembly.

10. Push down on the metal retaining clip while pushing rearward on the headlamp, making sure the headlamp assembly is secure.

11. Reinstall the bolt and tighten to secure.

Front Turn Signal, Parking and Fog Lamps

The front turn signal, parking, and fog lamps, if the vehicle has them, are located below the headlamp assembly.

A. Front Turn Signal/Parking Lamp
B. Fog Lamp (If Equipped)

To replace one of these bulbs, do the following:

 1. Follow Steps 1 through 4 of the headlamp replacement procedure. See Headlamps and Sidemarker Lamps for more information.

2. Locate the front turn signal/parking lamp (all models) and fog lamp bulbs (if equipped), which are located below the headlamp assembly.

The arrow indicates which is the turn signal/parking lamp bulb. The fog lamp bulb is below it, if your vehicle has this bulb. If you need to have fog lamp bulb replaced, see your dealer/retailer for service.

3. Turn the bulb socket one-quarter of a turn counterclockwise to remove it from its assembly.

4. Pull the old bulb from the socket and replace it with a new one.

 5. Turn the bulb socket a quarter turn clockwise to reinstall it.

6. Reinstall the headlamp assembly.

7. Push down on the metal retaining clip while pushing rearward on the headlamp, making sure the headlamp assembly is secure.

 8. Reinstall the bolt and tighten to secure.

Taillamps, Turn Signal, and Stoplamps

A. Taillamp

B. Taillamps, Turn Signal and Stoplamps

1. Open the trunk. See Trunk for more information.

 2. Remove the convenience net, if equipped, by removing the net hook attachments.

3. Remove the plastic cap from the trunk trim.

4. Pull the trunk trim and carpet away from the back of the trunk.

5. Remove the bottom bolt and two nuts.

6. Remove the taillamp assembly by pulling it out from the vehicle.

7. Turn the appropriate lamp socket a quarter turn counterclockwise and remove it.

8. Remove the old bulb.

 9. Replace with a new bulb into the socket and turn the lamp socket clockwise to install it.

10. Reinstall the taillamp assembly by reversing Steps 2 through 5.

Back-Up Lamps

The back-up lamps are located on the trunk lid.

To replace the back-up lamp bulb(s):

 1. Open the trunk. See Trunk for more information.

2. Turn the appropriate lamp socket a quarter turn counterclockwise and remove it.

3. Remove the old bulb.

4. Put the new bulb into the lamp socket.

5. Turn the bulb a quarter turn clockwise to reinstall it.

License Plate Lamp

To replace one of these bulbs:

  1. Open the trunk. See Trunk .

2. Turn the appropriate lamp socket a quarter turn counterclockwise and remove it.

3. Remove the old bulb.

4. Put the new bulb into the lamp socket.

 5. Turn the bulb a quarter turn clockwise to reinstall it.

Replacement Bulbs

For replacement bulbs not listed here, contact your dealer/retailer.



Windshield Replacement

If your vehicle is equipped with the Head-Up Display (HUD) system, keep in mind that your windshield is part of the HUD system. If you ever have to get your windshield replaced, be sure to get one that is designed for HUD or your HUD image may look blurred or out of focus.

Windshield Wiper Blade Replacement

Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance for more information on wiper blade inspection. Replacement blades come in different types and are removed in different ways. For the proper type and length, see Normal Maintenance Replacement Parts . Here is how to remove the wiper blade:

1. Pull the windshield wiper arm connector away from the windshield.

2. While holding the wiper arm, pull the clip up from the blade connecting point, and pull the blade assembly down toward the windshield to remove it from the wiper arm.

3. Install the new wiper blade onto the wiper arm and snap the clip into place.

Tires

Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your GM Warranty booklet for details. For additional information refer to the tire manufacturer’s booklet included with your vehicle.

CAUTION: Poorly maintained and improperly used tires are dangerous.

 • Overloading your vehicle’s tires can cause overheating as a result of too much friction. You could have an air-out and a serious accident. See Loading Your Vehicle .

• Underinflated tires pose the same danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when your vehicle’s tires are cold. See Inflation — Tire Pressure .

 • Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when you hit a pothole. Keep tires at the recommended pressure.

• Worn, old tires can cause accidents. If the tire’s tread is badly worn, or if your vehicle’s tires have been damaged, replace them.

Low-Profile Performance Tire (GXP

) If your vehicle has P255/45R18 size tires on the front wheels and P225/50R18 size tires on the rear wheels, they are classified as low-profile performance tires. These tires are designed for very responsive driving on wet or dry pavement. You may also notice more road noise with low-profile performance tires and that they tend to wear faster. Notice: If your vehicle has low-profile tires, they are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like, potholes, or sharp edged objects, or when sliding into a curb. Your GM warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and, when possible avoid contact with curbs, potholes, and other road hazards.

Tire Sidewall Labeling

Useful information about a tire is molded into its sidewall. The examples below show a typical passenger vehicle tire and a compact spare tire sidewall.

Passenger (P-Metric) Tire Example

(A) Tire Size: The tire size is a combination of letters and numbers used to define a particular tire’s width, height, aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail.

(B) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines.

(C) DOT (Department of Transportation): The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards.

(D) Tire Identification Number (TIN): The letters and numbers following DOT (Department of Transportation) code is the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture.

(E) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread.

(F) Uniform Tire Quality Grading (UTQG): Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. For more information see Uniform Tire Quality Grading .

 (G) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.

Compact Spare Tire Example

(A) Temporary Use Only: The compact spare tire or temporary use tire has a tread life of approximately 3,000 miles (5 000 km) and should not be driven at speeds over 65 mph (105 km/h). The compact spare tire is for emergency use when a regular road tire has lost air and gone flat. If your vehicle has a compact spare tire, see Compact Spare Tire and If a Tire Goes Flat .

(B) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread.

(C) Tire Identification Number (TIN): The letters and numbers following the DOT (Department of Transportation) code is the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture.

 (D) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.

(E) Tire Inflation: The temporary use tire or compact spare tire should be inflated to 60 psi (420 kPa). For more information on tire pressure and inflation see Inflation — Tire Pressure .

(F) Tire Size: A combination of letters and numbers define a tire’s width, height, aspect ratio, construction type, and service description. The letter T as the first character in the tire size means the tire is for temporary use only.

(G) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines.

Tire Size

 The following illustration shows an example of a typical passenger vehicle tire size.

(A) Passenger (P-Metric) Tire: The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.

(B) Tire Width: The three-digit number indicates the tire section width in millimeters from sidewall to sidewall.

(C) Aspect Ratio: A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 60, as shown in item C of the illustration, it would mean that the tire’s sidewall is 60 percent as high as it is wide.

(D) Construction Code: A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction.

(E) Rim Diameter: Diameter of the wheel in inches.

 (F) Service Description: These characters represent the load range and speed rating of the tire. The load index represents the load carry capacity a tire is certified to carry. The load index can range from 1 to 279. The speed rating is the maximum speed a tire is certified to carry a load. Speed ratings range from A to Z.

Tire Terminology and Definitions

Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa).

Accessory Weight: This means the combined weight of optional accessories. Some examples of optional accessories are, automatic transmission, power steering, power brakes, power windows, power seats, and air conditioning.

 Aspect Ratio: The relationship of a tire’s height to its width.

 Belt: A rubber coated layer of cords that is located between the plies and the tread. Cords may be made from steel or other reinforcing materials.

 Bead: The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim.

Bias Ply Tire: A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread.

Cold Tire Pressure: The amount of air pressure in a tire, measured in pounds per square inch (psi) or kilopascals (kPa) before a tire has built up heat from driving. See Inflation — Tire Pressure .

Curb Weight: This means the weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo.

DOT Markings: A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S. Department of Transportation (DOT) motor vehicle safety standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production.

 GVWR: Gross Vehicle Weight Rating. See Loading Your Vehicle .

 GAWR FRT: Gross Axle Weight Rating for the front axle. See Loading Your Vehicle .

GAWR RR: Gross Axle Weight Rating for the rear axle. See Loading Your Vehicle .

Intended Outboard Sidewall: The side of an asymmetrical tire, that must always face outward when mounted on a vehicle.

Kilopascal (kPa): The metric unit for air pressure.

Light Truck (LT-Metric) Tire: A tire used on light duty trucks and some multipurpose passenger vehicles.

 Load Index: An assigned number ranging from 1 to 279 that corresponds to the load carrying capacity of a tire.

Maximum Inflation Pressure: The maximum air pressure to which a cold tire may be inflated. The maximum air pressure is molded onto the sidewall.

Maximum Load Rating: The load rating for a tire at the maximum permissible inflation pressure for that tire.

Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight.

 Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 150 lbs (68 kg). See Loading Your Vehicle .

 Occupant Distribution: Designated seating positions.

Outward Facing Sidewall: The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire.

 Passenger (P-Metric) Tire: A tire used on passenger cars and some light duty trucks and multipurpose vehicles.

Recommended Inflation Pressure: Vehicle manufacturer’s recommended tire inflation pressure as shown on the tire placard. See Inflation — Tire Pressure and Loading Your Vehicle .

Radial Ply Tire: A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread.

Rim: A metal support for a tire and upon which the tire beads are seated. Sidewall: The portion of a tire between the tread and the bead.

Speed Rating: An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate.

Traction: The friction between the tire and the road surface. The amount of grip provided.

Tread: The portion of a tire that comes into contact with the road. Treadwear Indicators: Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1/16 inch (1.6 mm) of tread remains. See When It Is Time for New Tires .

 UTQGS (Uniform Tire Quality Grading Standards): A tire information system that provides consumers with ratings for a tire’s traction, temperature, and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading .

 Vehicle Capacity Weight: The number of designated seating positions multiplied by 150 lbs (68 kg) plus the rated cargo load. See Loading Your Vehicle .

Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight.

Vehicle Placard: A label permanently attached to a vehicle showing the vehicle’s capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Loading Your Vehicle .

Inflation — Tire Pressure

 Tires need the correct amount of air pressure to operate effectively.

Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not have enough air (under-inflation), you can get the following:

• Too much flexing

• Too much heat

• Tire overloading

• Premature or irregular wear

 • Poor handling

• Reduced fuel economy

 If your tires have too much air (over-inflation), you can get the following:

• Unusual wear

• Poor handling

• Rough ride

 • Needless damage from road hazards

A vehicle specific Tire and Loading Information label is attached to your vehicle. This label shows your vehicle’s original equipment tires and the correct inflation pressures for your tires when they are cold. The recommended cold tire inflation pressure, shown on the label, is the minimum amount of air pressure needed to support your vehicle’s maximum load carrying capacity. For additional information regarding how much weight your vehicle can carry, and an example of the Tire and Loading Information label, see Loading Your Vehicle . How you load your vehicle affects vehicle handling and ride comfort. Never load your vehicle with more weight than it was designed to carry.

 When to Check

 Check your tires once a month or more. Do not forget to check the compact spare tire, it should be at 60 psi (420 kPa). For additional information regarding the compact spare tire, see Compact Spare Tire .

How to Check

Use a good quality pocket-type gage to check tire pressure. You cannot tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they are under-inflated. Check the tire’s inflation pressure when the tires are cold. Cold means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). Remove the valve cap from the tire valve stem. Press the tire gage firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until you reach the recommended amount. If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Re-check the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.

Tire Pressure Monitor System

The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. If your vehicle has this feature, sensors are mounted onto each tire and wheel assembly, except for the spare tire. The TPMS sensors monitor the air pressure in your vehicle’s tires and transmit tire pressure readings to a receiver located in the vehicle. When a low tire pressure condition is detected, the TPMS will illuminate the low tire pressure warning symbol on the instrument panel cluster, and at the same time a warning message to check the pressure in a specific tire displays on the Driver Information Center (DIC). The low tire pressure warning light and the DIC warning message CHECK TIRE PRESSURE come on at each ignition cycle until the tires are inflated to the correct inflation pressure. For additional information and details about the DIC operation and displays see DIC Controls and Displays (Base Level DIC) or DIC Controls and Displays (Uplevel DIC with Trip Computer) and DIC Warnings and Messages .

During cooler weather conditions, the low tire pressure warning light and the DIC warning message may come on when the vehicle is first started and then turn off as you start to drive. This could be an early indicator that the tire pressures are getting low and need to be inflated to the proper pressure. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. A Tire and Loading Information label, attached to your vehicle, shows the size of your vehicle’s original equipment tires and the correct inflation pressure for your vehicle’s tires when they are cold. See Loading Your Vehicle , for an example of the Tire and Loading Information label and its location on your vehicle. Also see Inflation — Tire Pressure . Your vehicle’s TPMS system can warn you about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection and Rotation and Tires . Notice: Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors. The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. If the system detects a missing or inoperable sensor, an error message SERVICE TIRE MONITOR SYSTEM appears on the DIC display. If you have replaced a tire/wheel assembly without transferring the TPMS sensors, the error message displays. Once you re-install the TPMS sensors, the error message should go off. See your dealer for service if all TPMS sensors are installed and the error message comes on and stays on.

TPMS Sensor Identification Codes

 Each TPMS sensor has a unique identification code. Any time you replace one or more of the TPMS sensors or rotate the vehicle’s tires, the identification codes need to be matched to the new tire/wheel position. The sensors are matched, to the tire/wheel positions, in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear tire using a TPMS diagnostic tool. See your dealer for service. The TPMS sensors may also be matched to each tire/wheel position by increasing or decreasing the tire’s air pressure. When increasing the tire’s pressure, do not exceed the maximum inflation pressure indicated on the tire’s sidewall. You have two minutes to match each tire and wheel position. If it takes longer than two minutes to match any tire and wheel position, the matching process stops and you need to start over.

 The TPMS matching process is outlined below:

1. Set the parking brake.

2. Turn the ignition switch to RUN with the engine off.

 3. Press the Remote Keyless Entry (RKE) transmitter’s Lock and Unlock buttons at the same time for approximately five seconds. The horn sounds twice to signal the receiver is in relearn mode and the TPMS sensor matching process can begin.

4. Start with the driver’s side front tire.

5. Remove the valve cap from the tire’s valve stem. Activate the TPMS sensor by increasing or decreasing the tire’s air pressure for ten seconds, or until a horn chirp sounds. The horn chirp, which may take up to 30 seconds to sound, confirms that the sensor identification code has been matched to the tire/wheel position. To decrease the tire’s air-pressure use the pointed end of the valve cap, a pencil-style air pressure gage, or a key.

6. Proceed to the passenger side front tire, and repeat the procedure in Step 5.

7. Proceed to the passenger side rear tire, and repeat the procedure in Step 5.

 8. Proceed to the driver side rear tire, and repeat the procedure in Step 5.

9. After hearing the confirming horn chirp for the driver side rear tire, the horn chirps two more times to signal the tire learning process has ended. Turn the ignition switch to OFF.

10. Set all four tires to the recommended air pressure level as indicated on the tire and loading information label.

11. Put the valve caps back on the valve stems.

The spare tire does not have a TPMS sensor. If you replace one of the road tires with the spare, the SERVICE TIRE MONITOR SYSTEM message will be displayed on the DIC. This message should go off once you re-install the road tire containing the TPMS sensor.

 Federal Communications Commission (FCC) and Industry and Science Canada

The Tire Pressure Monitor System (TPMS) operates on a radio frequency and complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired operation.

The Tire Pressure Monitor System (TPMS) operates on a radio frequency and complies with RSS-210 of Industry and Science Canada. Operation is subject to the following two conditions:

1. This device may not cause interference.

 2. This device must accept any interference received, including interference that may cause undesired operation of the device. Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment.

Tire Inspection and Rotation

Tire rotation is not recommended if your vehicle is a GXP model equipped with P255/45R18 size tires on the front wheels and P225/50R18 size tires on the rear wheels. Different tire sizes front to rear should not be rotated. Tire rotation is recommended if the original equipment tires installed on your vehicle are of the same size and type on all four tire/wheel positions. Original equipment tires of the same size and type should be rotated every 5,000 to 8,000 miles (8 000 to 13 000 km). Any time you notice unusual wear, rotate your vehicle’s tires as soon as possible and check the wheel alignment. Also check for damaged tires or wheels. See When It Is Time for New Tires and Wheel Replacement for more information. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See Scheduled Maintenance for scheduled rotation intervals.

Rotation Pattern for Non-GXP Tires Only

The correct rotation pattern shown here is only for non-GXP tires. Do not include the compact spare tire, if equipped, in your vehicle’s tire rotation. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire and Loading Information label, and reset the Tire Pressure Monitor System. See Tire Pressure Monitor System for additional information. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications .

CAUTION: Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See Changing a Flat Tire .

When It Is Time for New Tires

One way to tell when it is time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. You need a new tire if any of the following statements are true:

• You can see the indicators at three or more places around the tire.

 • You can see cord or fabric showing through the tire’s rubber.

• The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric.

• The tire has a bump, bulge, or split.

 • The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.

 Buying New Tires

 GM has developed and matched specific tires for your vehicle. The original equipment tires installed on your vehicle, when it was new, were designed to meet General Motors Tire Performance Criteria Specification (TPC spec) system rating. If you need replacement tires, GM strongly recommends that you get tires with the same TPC Spec rating. This way, your vehicle will continue to have tires that are designed to give the same performance and vehicle safety, during normal use, as the original tires. GM’s exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of your vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM’s TPC Spec number is molded onto the tire’s sidewall by the tire manufacturer. If the tires have an all-season tread design, the TPC spec number will be followed by an MS for mud and snow. See Tire Sidewall Labeling for additional information.

CAUTION: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes (other than those originally installed on your vehicle), brands, or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes (other than those originally installed on your vehicle) may also cause damage to your vehicle. Be sure to use the correct size, brand, and type tires on all wheels. If your vehicle has a compact spare tire, it is all right to drive your vehicle with the compact spare temporarily. It was developed for use on your vehicle. See Compact Spare Tire .

CAUTION: If you use bias-ply tires on your vehicle, the wheel rim flanges could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle.

If you must replace your vehicle’s tires with those that do not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction type (radial and bias-belted tires) as your vehicle’s original tires. Your vehicle’s original equipment tires are listed on the Tire and Loading Information label. This label is attached to the vehicle’s center pillar (B-pillar). See Loading Your Vehicle , for more information about the Tire and Loading Information label and its location on your vehicle.

Different Size Tires and Wheels

 If you add wheels or tires that are a different size than your original equipment wheels and tires, this may affect the way your vehicle performs, including its braking, ride and handling characteristics, stability, and resistance to rollover. Additionally, if your vehicle has electronic systems such as, anti-lock brakes, traction control, and electronic stability control, the performance of these systems can be affected.

CAUTION: If you add different sized wheels, your vehicle may not provide an acceptable level of performance and safety if tires not recommended for those wheels are selected. You may increase the chance that you will crash and suffer serious injury. Only use GM specific wheel and tire systems developed for your vehicle, and have them properly installed by a GM certified technician.

See Buying New Tires and Accessories and Modifications for additional information.

Uniform Tire Quality Grading

Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration (NHTSA), which grades tires by treadwear, traction, and temperature performance. This applies only to vehicles sold in the United States. The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading (UTQG) system does not apply to deep tread, winter-type snow tires, space-saver, or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards. Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1.5) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices, and differences in road characteristics and climate. Traction – AA, A, B, C The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

Temperature – A, B, C

The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

Wheel Alignment and Tire Balance

The tires and wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Adjustments to wheel alignment and tire balancing will not be necessary on a regular basis. However, if you notice unusual tire wear or your vehicle pulling to one side or the other, the alignment may need to be checked. If you notice your vehicle vibrating when driving on a smooth road, your tires and wheels may need to be rebalanced. See your dealer/retailer for proper diagnosis.

Wheel Replacement

Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer/retailer if any of these conditions exist. Your dealer/retailer will know the kind of wheel you need.

Each new wheel should have the same load-carrying capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts, or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts, and wheel nuts for your vehicle.

CAUTION: Using the wrong replacement wheels, wheel bolts, or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in which you or others could be injured. Always use the correct wheel, wheel bolts, and wheel nuts for replacement.

Notice: The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and chassis. See Changing a Flat Tire for more information. Used Replacement Wheels

CAUTION: Putting a used wheel on your vehicle is dangerous. You cannot know how it has been used or how far it has been driven. It could fail suddenly and cause a crash. If you have to replace a wheel, use a new GM original equipment wheel.

Tire Chains

CAUTION: If your vehicle has P225/55R17, P255/45R18 or P225/50R18 size tires, do not use tire chains, there is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in a crash. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination and road conditions. Follow that manufacturer’s instructions. To help avoid damage to your vehicle, drive slowly, readjust or remove the device if it is contacting your vehicle, and do not spin your wheels. If you do find traction devices that will fit, install them on the front tires.

Notice: If your vehicle does not have P225/ 55R17, P255/45R18 or P225/50R18 size tires, use tire chains only where legal and only when you must. Use only SAE Class S-type chains that are the proper size for your tires. Install them on the front tires and tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer’s instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle.

If a Tire Goes Flat

It is unusual for a tire to blowout while you are driving, especially if you maintain your tires properly. See Tires . If air goes out of a tire, it is much more likely to leak out slowly. But if you should ever have a blowout, here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop well out of the traffic lane. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction you’d use in a skid. In any rear blowout, remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake to a stop, well off the road if possible. If a tire goes flat, and your vehicle has a spare tire, see Changing a Flat Tire . This information shows you how to use your vehicle’s tire changing equipment and how to change a flat tire safely.

CAUTION: Lifting a vehicle and getting under it to do maintenance or repairs is dangerous without the appropriate safety equipment and training. The jack provided with your vehicle is designed only for changing a flat tire. If it is used for anything else, you or others could be badly injured or killed if the vehicle slips off the jack. Use the jack provided with your vehicle only for changing a flat tire.

If a Tire Goes Flat (GXP) GXP models have no spare tire, no tire changing equipment, and no place for storing a spare or flat tire. If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place and stopping. Then do this:

1. Turn on the hazard warning flashers. See Hazard Warning Flashers .

2. Park your vehicle. Set the parking brake firmly and put the shift lever in PARK (P). See Shifting Into Park (P) for additional information.

3. Turn off the engine.

4. Inspect the flat tire. If the tire has been separated from the wheel or has damaged sidewalls or large tears that allow rapid air loss, call a tire repair facility. See Roadside Assistance Program .

If the flat tire is due to a slow leak caused by a nail or other similar road hazard, the tire inflator kit may be used to temporarily repair the damaged tire. The kit uses a liquid tire sealant to seal small punctures in the tread area of the tire. The flat tire is then inflated to at least 30 psi (207 kPa) and driven to evenly distribute the tire sealant. The tire pressure is checked after driving for a maximum of five miles (8.0 km) to see if the slow leak has been stopped. If the tire pressure is 19 psi (131 kPa) or more, inflate the tire up to the standard operating pressure as shown on the tire and loading information label. This label is attached to the vehicle’s center-pillar below the driver’s door latch. See Inflation — Tire Pressure . Notice: If the tire pressure has dropped below 19 psi (131 kPa), the vehicle should not be driven. Damage to the tire may be severe and the sealant will not be effective. Contact Roadside Assistance, see Roadside Assistance Program . You should have the damaged tire repaired as soon as possible. The tire sealant is a temporary repair only. If the tire has been filled with tire sealant, take the tire to a GM dealer for inspection and repair. See Tire Inflator Kit (GXP) for additional information.

Tire Inflator Kit (GXP)

Your vehicle may have a tire inflator kit. The kit uses a liquid tire sealant and air at the same time to seal small punctures in the tread area of the tire. Be sure to read and follow all the tire inflator kit instructions. The kit includes:

If the flat tire is due to a slow leak caused by a nail or other similar road hazard, the tire inflator kit may be used to temporarily repair the damaged tire. After temporarily repairing a tire using the tire inflator kit, it is recommended to take your vehicle to your dealer/retailer within 100 miles (161 kilometers) of driving to have the tire inspected and repaired. If the sealant is not removed from the tire within a 100 miles (161 kilometers) of driving, it is more likely that the tire and tire pressure monitoring sensor may get damaged and have to be replaced.

 Accessing the Tire Inflator Kit To access the tire inflator kit:

1. Open the trunk. See Trunk for more information.

 2. Locate the tire inflator kit by lifting up the carpet.

3. Remove the inflator kit cover by turning the center nut counterclockwise.

4. Remove the inflator kit by pulling it straight out of the foam container.

Tire Sealant The kit contains a liquid sealant that when injected into a flat tire, may temporarily repair nail holes or cuts in the tread area of the tire. The tire sealant cannot repair tire damage caused while driving on a flat tire or a tire that has had a “blow out” or a tire that has punctures in the sidewall areas. The tire sealant solution is to be used for a single tire and can only be used once. Check the tire sealant expiration date on the sealant canister. The sealant may not be as effective beyond the expiration date. If needed, see your dealer/retailer for a replacement canister. After temporarily repairing a tire using the tire sealant, take your vehicle to your dealer/retailer to have the tire inspected and repaired.

 Using the Tire Inflator Kit To use the tire inflator kit:

1. Place the inflator kit on the ground and unwrap the sealant filling hose from the compressor.

2. Remove the air compressor accessory plug from the unit. To do this, pull the top portion of the wrapped cord out first, then the bottom, then unsnap the plug. Do not insert the plug into an accessory outlet yet.

 3. Remove the valve stem cap from the flat tire by turning it counterclockwise. If an object, such as a nail, has penetrated the tire, do not remove it.

4. Attach the sealant filling hose (A) onto the tire valve stem. Turn it clockwise until it is tight. Make sure the inflator kit on/off switch (B) is in the O (off) position.

5. Plug the air compressor accessory plug (C) into an accessory power outlet in the vehicle. See Accessory Power Outlet(s) for more information.

CAUTION: Idling the engine in a closed-in place or with the climate control system off can cause deadly carbon monoxide (CO). See Engine Exhaust .

6. Start the vehicle. See Starting the Engine for more information. The vehicle must be running while using the air compressor.

CAUTION: Inflating something too much can make it explode, and you or others could be injured. Be sure to read the inflator instructions, and inflate the tire to its recommended pressure. Do not exceed 36 psi (248 kPa).

7. Move the inflator kit switch to the I (on) position. The inflator kit will force sealant and air into the tire. Sealant may leak from the puncture hole until the vehicle is driven and the hole has sealed.

 8. Make sure there is a proper connection between the tire valve stem and the sealant filling hose by looking at the air pressure gage. If there is not a pressure reading while the compressor is running, the connection between the inflator kit and the tire is bad. Check the attachment between the sealant filling hose and the tire valve stem.

9. Inflate the tire up to the recommended inflation pressure, found on the Tire and Loading Information label located on the vehicle’s center pillar (B-pillar) below the vehicle’s door latch, using the air pressure gage on the top of the unit as a guide. The pressure gage reading is slightly high while the compressor is on. Turn the compressor off to get an accurate pressure reading.

Notice: If the recommended pressure cannot be reached after 15 minutes, the vehicle should not be driven farther. Damage to the tire is severe and the sealant will not be effective. Remove the air compressor plug from the accessory power outlet and unscrew the inflating hose from the tire valve. See Roadside Assistance Program .

10. Move the inflator kit switch to the O (off) position once the correct tire pressure is obtained.

11. Turn off the engine.

12. Unplug the air compressor accessory plug from the accessory power outlet in the vehicle.

13. Disconnect the sealant filling hose from the tire valve stem, by turning it counterclockwise, and replace the tire valve stem cap. Be careful when handling the tire inflator components as they may be hot after usage.

14. Wrap the sealant filling hose around the air compressor channel to stow it in its original location.

15. Stow the air compressor accessory plug back in the air compressor. To do this, wrap the air compressor accessory plug, snap in the plug, and then push in the bottom and then the top of the wrapped air compressor accessory plug.

16. If the flat tire was able to inflate to the recommended inflation pressure, remove the maximum speed label from the sealant canister.

 Place it in a highly visible location such as the inside of the upper left corner of the windshield or to the face of the radio/clock. The maximum speed label reminds you to drive cautiously and not to exceed 55 mph (90 km/h) until you have the damaged tire inspected and repaired.

CAUTION: Storing the tire inflator kit or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store the tire inflator kit in the proper place.

17. Return the equipment to the proper storage location in the trunk of your vehicle.

18. Immediately drive the vehicle 5 miles (8 km) to distribute the sealant evenly in the tire. Stop at a safe location and check the tire pressure. Refer to Steps 1 through 8 under “Using the Air Compressor without Sealant” next in this section. If the tire pressure has fallen more than 10 psi (68 kPa) below the recommended inflation pressure, stop driving the vehicle. The tire is too damaged for the sealant to work. See Roadside Assistance Program . If the tire pressure has not dropped more than 10 psi (68 kPa) from the recommended inflation pressure, you can inflate the tire back up to the recommended inflation pressure.

19. Dispose of the sealant canister at your dealer/retailer or in accordance with your local state codes and practices. After using the sealant canister, replace it with a new canister from your dealer/retailer.

20. After temporarily repairing a tire with the emergency flat tire repair kit, take your vehicle to your dealer/retailer to have the tire inspected and repaired.

Using the Air Compressor without Sealant

 To use the air compressor by itself to inflate a tire:

1. Remove the air compressor accessory plug from the air compressor.

2. Unlock the air compressor hose from the sealant canister by pulling up on the lever.

3. Pull the air compressor inflator hose from the sealant canister.

4. Push the air compressor inflator hose onto the tire valve stem and push the lever down to secure in place.

5. Plug the air compressor accessory plug into an accessory power outlet in the vehicle. See Accessory Power Outlet(s) for more information.

CAUTION: Idling the engine in a closed-in place or with the climate control system off can cause deadly carbon monoxide (CO). See Engine Exhaust .

6. Start the vehicle. See Starting the Engine for more information. The vehicle must be running while using the air compressor.

CAUTION: Inflating something too much can make it explode, and you or others could be injured. Be sure to read the inflator instructions, and inflate the tire to its recommended pressure. Do not exceed 36 psi (248 kPa).

7. Move the inflator kit switch to the I (on) position.

8. Make sure there is a proper connection between the tire valve stem and the air compressor hose by looking at the air pressure gage. If there is not a pressure reading while the compressor is running, the connection between the inflator kit and the tire is bad. Check the attachment between the air compressor hose and the tire valve stem.

 9. Inflate the tire up to the recommended inflation pressure using the air pressure gage on the top of the unit as a guide.

10. Turn off the air compressor by moving the switch to the O (off) position.

CAUTION: Storing the tire inflator kit or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store the tire inflator kit in the proper place

11. Disconnect the compressor inflator hose and wrap the hose in the bottom of the inflator kit.

12. Place the equipment in the original location in the trunk of your vehicle.

Removal and Installation of the Sealant Canister To remove the sealant canister:

1. Unlock the air compressor inflator hose from the sealant canister by pulling the lever up.

 2. Disconnect the air compressor inflator hose from the sealant canister.

3. Unwrap the sealant filling hose from the compressor.

4. Turn the sealant canister so the inflator filling hose is aligned with the slot in the compressor.

5. Lift the sealant canister from the air compressor and replace with a new sealant canister. See your dealer/retailer for more information.

To install a new sealant canister:

 1. Align the sealant filling hose with the slot in the air compressor.

2. Push the sealant canister down and turn it clockwise.

3. Wrap the sealant filling hose around the air compressor channel to stow it in its original location.

4. Push the air compressor inflator hose onto the sealant canister inlet and push the lever down.

Changing a Flat Tire

 If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your vehicle’s hazard warning flashers. See Hazard Warning Flashers for more information.

CAUTION: Changing a tire can be dangerous. The vehicle can slip off the jack and roll over or fall on you or other people. You and they could be badly injured or even killed. Find a level place to change your tire. To help prevent the vehicle from moving:

 1. Set the parking brake firmly.

 2. Put the shift lever in PARK (P).

3. Turn off the engine and do not restart while the vehicle is raised.

 4. Do not allow passengers to remain in the vehicle.

 To be even more certain the vehicle will not move, you should put blocks at the front and rear of the tire farthest away from the one being changed. That would be the tire, on the other side, at the opposite end of the vehicle.

When your vehicle has a flat tire, use the following example as a guide to assist you in the placement of wheel blocks.

The following information will tell you next how to use the jack and change a tire.

Removing the Spare Tire and Tools

The equipment needed to change a tire is located in the trunk.

1. Open the trunk. See Trunk for more information.

2. Remove the convenience net, if equipped, by removing the net hook attachments.

3. Lift up the carpet.

 4. Turn the center nut on the compact spare tire cover counterclockwise to remove it.

5. Remove the cover.

6. Remove the compact spare tire. See Compact Spare Tire for more information.

7. Turn the nut holding the jack counterclockwise and remove it. Then remove the jack and wrench.

8. The tools you will be using include the jack (A), extension and protector/guide (B) and the wheel wrench (C).

Removing the Flat Tire and Installing the Spare Tire

Your vehicle may have aluminum wheels. If so, you will see exposed stainless steel wheel nuts. Use the wheel wrench to loosen all the wheel nuts. Do not remove them yet. Or, your vehicle may have steel wheel covers.

To remove the steel wheel covers and wheel nut caps, loosen the plastic nut caps with the wheel wrench in a counterclockwise direction. If needed, you can finish loosening them with your fingers. The plastic nut caps will not come off.

Use the flat end of the wheel wrench and pry along the edge of the cover until it comes off. The edge of the wheel cover could be sharp, so do not try to remove it with your bare hands. Do not drop the cover or lay it face down, as it could become scratched or damaged. Store the wheel cover in the trunk until the flat tire is repaired or replaced. Once you have removed the wheel cover, use the following procedure to remove the flat tire and install the spare tire.

1. It is recommended that you do a safety check before preceding. See Changing a Flat Tire for more information.

2. Set the park brake firmly.

3. Turn the wheel wrench once on each wheel nut to loosen them. Do not remove them yet.

4. Find the jacking location located on the underside of the rocker trim using the diagram. For jacking at the vehicle’s front location, put the jack lift head (C) about 6 inches (15 cm) from the rear edge of the front wheel opening (B). Line up the jack with the arrow (A) as shown.

For jacking at the vehicle’s rear location, put the jack lift head (B) about 9 inches (23 cm) from the front edge of the rear wheel opening (C). Line up the jack with the arrow (A) as shown.

5. Put the compact spare tire near you.

CAUTION: Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack.

CAUTION: Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle.

CAUTION: Lifting a vehicle and getting under it to do maintenance or repairs is dangerous without the appropriate safety equipment and training. The jack provided with your vehicle is designed only for changing a flat tire. If it is used for anything else, you or others could be badly injured or killed if the vehicle slips off the jack. Use the jack provided with your vehicle only for changing a flat tire.

6. Raise the vehicle by turning the jack handle clockwise. Raise the vehicle far enough off the ground for the compact spare tire to attach to the vehicle.

7. Remove all wheel nuts and take off the flat tire.

CAUTION: Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after time. The wheel could come off and cause an accident. When changing a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In an emergency, a cloth or a paper towel can be used to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off.

8. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel.

9. Install the compact spare tire.

CAUTION: Never use oil or grease on studs or nuts. Because the nuts might come loose. The vehicle’s wheel could fall off, causing a serious accident.

10. Reinstall the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each nut by hand until the wheel is held against the hub.

11. Lower the vehicle by turning the jack handle counterclockwise. Lower the jack completely.

CAUTION: Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to an accident. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new GM original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to the proper torque specification. See Capacities and Specifications for wheel nut torque specification.

Notice: Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification. See Capacities and Specifications for the wheel nut torque specification.

12. Tighten the wheel nuts firmly in a crisscross sequence as shown.

Notice: Wheel covers will not fit on your vehicle’s compact spare. If you try to put a wheel cover on the compact spare, the cover or the spare could be damaged.

Storing a Flat or Spare Tire and Tools

CAUTION: Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place.

After the compact spare tire is put on the vehicle, store the flat tire in the trunk. Use the following procedure to secure it in the trunk. When storing a full-size tire, use the extension and protector/guide, located in the foam holder, to help avoid wheel surface damage.

To store a full-size tire:

1. Install the tools in their original location in the trunk area and secure.

2. Place the tire in the trunk with the valve stem facing down, and the protector/guide placed through a wheel bolt hole.

3. Remove the protector and attach the retainer securely.

4. Place the protector/guide back in the foam holder when putting the compact spare back in the trunk. Store the cover as far forward as possible. The compact spare tire is for temporary use only. Replace the compact spare tire with a full-size tire as soon as possible. See Compact Spare Tire for more information. Use the following as a guide for storing the compact spare tire and tools.

Compact Spare Tire

Although the compact spare tire was fully inflated when the vehicle was new, it can lose air after a time. Check the inflation pressure regularly. It should be 60 psi (420 kPa). After installing the compact spare on the vehicle, you should stop as soon as possible and make sure the spare tire is correctly inflated. The compact spare is made to perform well at speeds up to 65 mph (105 km/h) for distances up to 3,000 miles (5 000 km), so you can finish your trip and have the full-size tire repaired or replaced where you want. You must calibrate the tire inflation monitor system, if your vehicle has this feature, after installing or removing the compact spare. See Tire Pressure Monitor System . The system may not work correctly when the compact spare is installed on the vehicle. Of course, it’s best to replace the spare with a full-size tire as soon as you can. The spare will last longer and be in good shape in case you need it again. Notice: When the compact spare is installed, do not take your vehicle through an automatic car wash with guide rails. The compact spare can get caught on the rails. That can damage the tire and wheel, and maybe other parts of your vehicle. Do not use the compact spare on other vehicles. And do not mix the compact spare tire or wheel with other wheels or tires. They will not fit. Keep the spare tire and its wheel together. Notice: Tire chains will not fit your compact spare. Using them can damage your vehicle and can damage the chains too. Do not use tire chains on your compact spare.

Appearance Care

Cleaning the Inside of Your Vehicle

Your vehicle’s interior will continue to look its best if it is cleaned often. Although not always visible, dust and dirt can accumulate on your upholstery. Dirt can damage carpet, fabric, leather, and plastic surfaces. Regular vacuuming is recommended to remove particles from your upholstery. It is important to keep your upholstery from becoming and remaining heavily soiled. Soils should be removed as quickly as possible. Your vehicle’s interior may experience extremes of heat that could cause stains to set rapidly. Lighter colored interiors may require more frequent cleaning. Use care because newspapers and garments that transfer color to your home furnishings may also transfer color to your vehicle’s interior. When cleaning your vehicle’s interior, only use cleaners specifically designed for the surfaces being cleaned. Permanent damage may result from using cleaners on surfaces for which they were not intended. Use glass cleaner only on glass. Remove any accidental over-spray from other surfaces immediately. To prevent over-spray, apply cleaner directly to the cleaning cloth. Notice: If you use abrasive cleaners when cleaning glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the integrated radio antenna and the rear window defogger. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Many cleaners contain solvents that may become concentrated in your vehicle’s breathing space. Before using cleaners, read and adhere to all safety instructions on the label. While cleaning your vehicle’s interior, maintain adequate ventilation by opening your vehicle’s doors and windows. Dust may be removed from small buttons and knobs using a small brush with soft bristles. Your dealer has a product for cleaning your vehicle’s glass. Should it become necessary, you can also obtain a product from your dealer to remove odors from your vehicle’s upholstery.

Do not clean your vehicle using the following cleaners or techniques:

• Never use a knife or any other sharp object to remove a soil from any interior surface.

 • Never use a stiff brush. It can cause damage to your vehicle’s interior surfaces.

• Never apply heavy pressure or rub aggressively with a cleaning cloth. Use of heavy pressure can damage your interior and does not improve the effectiveness of soil removal.

• Use only mild, neutral-pH soaps. Avoid laundry detergents or dishwashing soaps with degreasers. Using too much soap will leave a residue that leaves streaks and attracts dirt. For liquid cleaners, about 20 drops per gallon (3.78 L) of water is a good guide.

• Do not heavily saturate your upholstery while cleaning.

• Damage to your vehicle’s interior may result from the use of many organic solvents such as naptha, alcohol, etc.

Fabric/Carpet

Cleaning Fabric/Carpet

Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl, leather, plastic, and painted surfaces with a clean, damp cloth. Your dealer has cleaners for the cleaning of fabric and carpet. They will clean normal spots and stains very well. If the vehicle has the Ultra Lux® suede fabric, follow the listed procedures except do not use any solvents or dry cleaning products.

Here are some cleaning tips:

• Always read the instructions on the cleaner label.

• Clean up stains as soon as you can, before they set.

• Carefully scrape off any excess stain.

• Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn.

• To avoid forming a ring on fabric after spot cleaning, clean the entire area immediately or it will set.

Most stains can be removed with club soda water. To clean, use the following instructions:

 1. For liquids: blot with a clean, soft white cloth. For solids: remove as much as possible and then vacuum or brush.

2. Apply club soda water to a clean, soft white cloth. Do not over-saturate; the cloth should not drip water.

3. Clean the entire area. Avoid getting the fabric too wet.

4. Start cleaning from the seams into the stain to avoid a ring effect.

5. Continue cleaning, using a clean area of the cloth each time it becomes soiled.

6. When the stain is removed, blot the cleaned area with another dry clean, soft white cloth.

Using Cleaner on Fabric

1. First, try the cleaner in an inconspicuous area to make sure the cleaner does not affect the color of the fabric.

2. For liquids: blot the stain with a clean, soft white cloth. For solids: remove as much as possible and then vacuum or brush.

3. Spray a small amount of the cleaner onto a clean, soft white cloth. Do not apply spray directly to the fabric.

 4. Start cleaning from the seams into the stain to avoid a ring effect.

5. Continue cleaning, using a clean area of the cloth each time it becomes soiled.

 6. When the stain is removed, blot the cleaned area with another dry clean, soft white cloth.

7. If the cleaner leaves a ring effect, follow up with the club soda water instructions given earlier in this section.

Special Fabric Cleaning Problems

 Stains caused by such things as catsup, coffee, tea, milk, fruit, fruit juice, jelly, cheese, chocolate, vomit, urine, and blood can be removed using the club soda water instructions given earlier in this section.

 If an odor lingers after cleaning vomit or urine, treat the area with a water and baking soda solution:

 1 teaspoon (5 ml) of baking soda to 1 cup (250 ml) of lukewarm water. Let dry. Stains caused by oil and grease can be cleaned with an approved GM cleaner and a clean, white cloth.

1. Carefully scrape off excess stain.

2. Clean with cool water and allow to dry completely.

 3. If a stain remains, follow the cleaner instructions described earlier.

 Leather

A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a soft cloth dampened with a mild soap solution can be used. Allow the leather to dry naturally. Do not use heat to dry. Never use steam to clean leather. Never use spot lifters or spot removers on leather. Many commercial leather cleaners and coatings that are sold to preserve and protect leather may permanently change the appearance and feel of your leather and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Never use shoe polish on your leather.

Ultra Lux Suede

Cleaning Ultra Lux Suede

 Use a mild solution of lukewarm water and a neutral dish soap on a soft cloth or sponge. For the following stains, follow these instructions: Coffee, Tea, and Milk: Blot with a clean, soft, white cloth. Then clean with mild soapy water and a clean white cloth. Cosmetics: Clean with mild soapy water and a clean white cloth. Jelly, Syrup, and Fruit: Remove most of the solids, then clean with warm tap water and a clean white cloth. Oil and Grease: Sprinkle baking soda on the spot, brush, then wipe with a clean white cloth.

Instrument Panel, Vinyl, and Other Plastic Surfaces

A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust and dirt. Never use spot lifters or removers on plastic surfaces. Many commercial cleaners and coatings that are sold to preserve and protect soft plastic surfaces may permanently change the appearance and feel of your interior and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Some commercial products may increase gloss on your instrument panel. The increase in gloss may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions.

Care of Safety Belts

Keep belts clean and dry.

CAUTION: Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water.

Weatherstrips

Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required. See Recommended Fluids and Lubricants .

Washing Your Vehicle

The paint finish on the vehicle provides beauty, depth of color, gloss retention, and durability. The best way to preserve the vehicle’s finish is to keep it clean by washing it often with lukewarm or cold water. Do not wash the vehicle in the direct rays of the sun. Use a car washing soap. Do not use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. Approved cleaning products can be obtained from your dealer. See Vehicle Care/Appearance Materials . Do not use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. High pressure car washes may cause water to enter the vehicle.

Cleaning Exterior Lamps/Lenses

Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing Your Vehicle .

Finish Care

Occasional waxing or mild polishing of the vehicle by hand may be necessary to remove residue from the paint finish. Approved cleaning products can be obtained from your dealer. See Vehicle Care/Appearance Materials . Notice: Machine compounding or aggressive polishing on a basecoat/clearcoat paint finish may damage it. Use only non-abrasive waxes and polishes that are made for a basecoat/clearcoat paint finish on your vehicle. The vehicle has a basecoat/clearcoat paint finish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint finish. Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage the vehicle’s finish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather, and chemical fallout that can take their toll over a period of years. To help keep the paint finish looking new, keep the vehicle in a garage or covered whenever possible.

Windshield and Wiper Blades

Clean the outside of the windshield with glass cleaner. Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroughly when cleaning the blades. Bugs, road grime, sap, and a buildup of vehicle wash/wax treatments may cause wiper streaking. Replace the wiper blades if they are worn or damaged.

 Wipers can be damaged by:

• Extreme dusty conditions

• Sand and salt

• Heat and sun

• Snow and ice, without proper removal

Aluminum Wheels

Notice: If you use strong soaps, chemicals, abrasive polishes, cleaners, brushes, or cleaners that contain acid on aluminum or chrome-plated wheels, you could damage the surface of the wheel(s). The repairs would not be covered by your warranty. Use only approved cleaners on aluminum or chrome-plated wheels. Keep the wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. Notice: Using chrome polish on aluminum wheels could damage the wheels. The repairs would not be covered by your warranty. Use chrome polish on chrome wheels only. The surface of these wheels is similar to the painted surface of the vehicle. Do not use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid, or abrasive cleaning brushes on them because the surface could be damaged. Do not use chrome polish on aluminum wheels.

Notice: If you drive your vehicle through an automatic car wash that has silicone carbide tire cleaning brushes, you could damage the aluminum or chrome-plated wheels. The repairs would not be covered by your warranty. Never drive a vehicle equipped with aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes.

Tires

To clean the tires, use a stiff brush with tire cleaner. Notice: Using petroleum-based tire dressing products on your vehicle may damage the paint finish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on your vehicle.

Sheet Metal Damage

If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection. Original manufacturer replacement parts will provide the corrosion protection while maintaining the warranty.

Finish Damage

Any stone chips, fractures or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer. Larger areas of finish damage can be corrected in your dealer’s body and paint shop.

Underbody Maintenance

Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, corrosion and rust can develop on the underbody parts such as fuel lines, frame, floor pan, and exhaust system even though they have corrosion protection. At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and debris can collect. Dirt packed in close areas of the frame should be loosened before being flushed. Your dealer or an underbody car washing system can do this for you.

Chemical Paint Spotting

Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, we will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs first.

Vehicle Care/Appearance Materials

Vehicle Identification

Vehicle Identification Number (VIN)

This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration.

Engine Identification The eighth character in the VIN is the engine code. This code helps you identify your vehicle’s engine, specifications, and replacement parts.

Service Parts Identification Label

This label is in the trunk. It is very helpful if you ever need to order parts. The label has the following information:

• Vehicle Identification Number (VIN)

 • Model designation

• Paint information

• Production options and special equipment

 Do not remove this label from the vehicle.

Electrical System

Add-On Electrical Equipment

Notice: Do not add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage would not be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain your vehicle’s battery, even if your vehicle is not operating. Your vehicle has an airbag system. Before attempting to add anything electrical to your vehicle, see Servicing Your Airbag-Equipped Vehicle .

Headlamp Wiring

The headlamp wiring is protected by fuses in the fuse block. An electrical overload will cause the lamps to turn off. If this happens, have your headlamp wiring checked right away.

Windshield Wiper Fuses

The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. If the overload is caused by some electrical problem, have it fixed.

Power Windows and Other Power
Options

Circuit breakers in the fuse panel protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed.

Fuses and Circuit Breakers

The wiring circuits in the vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links in the wiring itself. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating. Spare fuses and a fuse puller are located in the underhood fuse block. See Underhood Fuse Block later in this section.

Instrument Panel Fuse Block

Some fuses are in a fuse block located on the end of the instrument panel on the passenger side.

To get to the fuse block lift up on the side panel. A fuse usage chart is on the inside of this panel.

To reinstall the end panel, position the lower section with the edge of the instrument panel, and press the sides of the panel until it snaps into place.

Underhood Fuse Block

The underhood fuse block is located on the passenger’s side of the vehicle in the engine compartment.

To remove the fuse block cover, press in on the tab at the bottom of the cover and pull up.

Capacities and Specifications

The following approximate capacities are given in English and metric conversions. See Recommended Fluids and Lubricants for more information.



Link to the main publication