2012 Chevrolet Impala Owners Manual

Compact Spare Tire . . . . . . . . 10-61

Jump Starting

Jump Starting . . . . . . . . . . . . . . 10-62

Towing

Towing the Vehicle . . . . . . . . . 10-66
Recreational Vehicle

Towing . . . . . . . . . . . . . . . . . . . . 10-66

Appearance Care

Exterior Care . . . . . . . . . . . . . . . 10-68
Interior Care . . . . . . . . . . . . . . . . 10-70
Floor Mats . . . . . . . . . . . . . . . . . . 10-73

General Information For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks:

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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, many fluids, and some component wear by-products contain and/or emit these chemicals.

California Perchlorate Materials Requirements Certain types of automotive applications, such as airbag initiators, safety belt pretensioners, and lithium batteries contained in Remote Keyless Entry transmitters, may contain perchlorate materials. Special handling may be necessary. For additional information, see www.dtsc.ca.gov/hazardouswaste/ perchlorate.

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Accessories and Modifications Adding non‐dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty.

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Vehicle Care

Damage to vehicle components resulting from modifications or the installation or use of non‐GM certified parts, including control module or software modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts. GM Accessories are designed to complement and function with other systems on the vehicle. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician. Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3‑31.

Vehicle Checks

Doing Your Own Service Work

{ WARNING

It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner manual procedures and consult the service manual for your vehicle before doing any service work.

If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 13‑11. This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle on page 3‑31. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records on page 11‑13.

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Vehicle Care

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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.

Hood To open the hood, do the following:

1. Pull the interior hood release handle with this symbol on it. It is located to the left of the parking brake pedal.

2. Then go to the front of the

vehicle and release the secondary hood latch, located near the center of the hood front, by pushing the latch to the right.

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Vehicle Care

Engine Compartment Overview

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A. Windshield Washer Fluid

Reservoir. See Washer Fluid on page 10‑18.

G. Engine Cooling Fans (Out of View. See Cooling System on page 10‑12.

B. Engine Compartment Fuse

Block on page 10‑29.

C. Battery on page 10‑21. D. Power Steering Reservoir and Cap. See Power Steering Fluid on page 10‑17.

E. Engine Oil Fill Cap. See Engine

Oil on page 10‑7.

F. Engine Oil Dipstick. See Engine

Oil on page 10‑7.

H. Transmission Fluid Cap. See Automatic Transmission Fluid on page 10‑10. Brake Fluid Reservoir. See Brakes on page 10‑18.

I.

J. Engine Air Cleaner/Filter on

page 10‑11.

K. Coolant Surge Tank and

Pressure Cap. See Engine Coolant on page 10‑13.

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Engine Oil To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: . Always use engine oil approved to the proper specification and of the proper viscosity grade. See “Selecting the Right Engine Oil” in this section.

. Check the engine oil level regularly and maintain the proper oil level. See “Checking Engine Oil” and “When to Add Engine Oil” in this section.

. Change the engine oil at the

appropriate time. See Engine Oil Life System on page 10‑10. . Always dispose of engine oil

properly. See “What to Do with Used Oil” in this section.

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10-8

Vehicle Care

Checking Engine Oil It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 10‑6 for the location of the engine oil dipstick. Obtaining an accurate oil level reading is essential: 1.

If the engine has been running recently, turn off the engine and allow several minutes for the oil to drain back into the oil pan. Checking the oil level too soon after engine shutoff will not provide an accurate oil level reading.

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

If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for an explanation of what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 12‑2. Notice: Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If you find that you have an oil level above the

operating range, i.e., 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. You should drain out the excess oil or limit driving of the vehicle and seek a service professional to remove the excess amount of oil. See Engine Compartment Overview on page 10‑6 for the location of the engine oil fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through. Selecting the Right Engine Oil Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑11.

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Specification Use and ask for licensed engine oils with the dexos1™ approved certification mark. Engine oils meeting the requirements for the vehicle should have the dexos1
approved certification mark. This certification mark indicates that the oil has been approved to the dexos1
specification.

Notice: Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check with your dealer or service provider on whether the oil is approved to the dexos1 specification.

Viscosity Grade SAE 5W‐30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W‐30, 10W‐40, or 20W‐50. If in an area of extreme cold, where the temperature falls below −20°F (−29°C), an SAE 0W‐30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, always select an oil that meets the dexos1 specification or equivalent. See “Specification” for more information. Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.

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Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. 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 or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil.

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10-10

Vehicle Care

Engine Oil Life System

When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. See Engine Oil Messages on page 5‑30. Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must

be changed at least once a year and, at this time, the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) 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 Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. Always reset the engine oil life to 100% after every oil change. It will not reset itself. To reset the system: 1. Display OIL LIFE REMAINING

on the DIC.

2. Press and hold the SET/RESET button on the DIC for more than five seconds. The oil life will change to 100%.

If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the engine oil life system has not reset. Repeat the procedure.

Automatic Transmission Fluid

How to Check Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer and have it repaired as soon as possible. There is a special procedure for checking and changing the transmission fluid. Because this procedure is difficult, you should have this done at your dealer.

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Contact your dealer for additional information or the procedure can be found in the service manual. To purchase a service manual, see Service Publications Ordering Information on page 13‑11
Change the fluid and filter at the intervals listed in Maintenance Schedule on page 11‑3, and be sure to use the fluid listed in Recommended Fluids and Lubricants on page 11‑11.

Engine Air Cleaner/Filter The engine air cleaner/filter is located in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview on page 10‑6 for more information on location.

When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each (80 000 km (50,000 mi) interval. See Maintenance Schedule on page 11‑3 for more information. If 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 covered with dirt, a new filter is required.

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10-11

To inspect or replace the engine air cleaner/filter:

1. Unfasten the clips on top of the engine air cleaner/filter housing. 2. Lift the filter cover housing away

from the engine. 3. Pull out the filter. 4.

Inspect or replace the engine air cleaner/filter.

5. Lower the filter cover housing

toward the engine.

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Vehicle Care

6. Fasten the clips on the top of the

When it is safe to lift the hood:

housing to lock the cover in place.

{ WARNING

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. Use caution when working on the engine and do not drive with the air cleaner/filter off.

Notice: If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving.

Cooling System The cooling system allows the engine to maintain the correct working temperature.

A. Engine Cooling Fans (Out

of View)

B. Coolant Surge Tank and

Pressure Cap

{ WARNING

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

{ WARNING

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.

Notice: Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.

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Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant mixture. See Recommended Fluids and Lubricants on page 11‑11
and Maintenance Schedule on page 11‑3 for more information. The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating on page 10‑15. What to Use

{ WARNING

Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning system is set for the proper coolant mixture.

(Continued)

WARNING (Continued)

With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Depending on the engine, use a 50/50 mixture of deionized water or clean, drinkable water and DEX-COOL coolant.

Use a 50/50 mixture of deionized water or clean, drinkable water and DEX-COOL coolant. If using this mixture, nothing else needs to be added. This mixture: . Gives freezing protection down

to −37°C (−34°F), outside temperature.

. Gives boiling protection up to

129°C (265°F), engine temperature.

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10-13

. Protects against rust and

corrosion.

. Will not damage aluminum parts. . Helps keep the proper engine

temperature.

Notice: If an improper coolant mixture is used, the engine could overheat and be badly damaged. The repair cost would not be covered by the vehicle warranty. Too much deionized water or clean, drinkable water in the mixture can freeze and crack the engine, radiator, heater core, and other parts. Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health.

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Vehicle Care

Checking Coolant The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the mark pointed to, add a 50/50 mixture of deionized water or clean drinkable water and DEX-COOL coolant. Be sure the cooling system is cool before this is done.

If no coolant is visible in the coolant surge tank, add coolant as follows: How to Add Coolant to the Coolant Surge Tank

{ WARNING

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.

Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.

{ WARNING

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

{ WARNING

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 surge tank pressure cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool if you ever have to turn the pressure cap.

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The coolant surge tank pressure cap can be removed when the cooling system, including the surge tank pressure cap and upper radiator hose, is no longer hot. 1. Turn the pressure cap slowly counterclockwise. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left.

2. Keep turning the cap and

remove it.

3. Fill the coolant surge tank with the proper mixture to the mark pointed to on the front of the coolant surge tank.

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10-15

indicate an overheated engine condition. See Engine Coolant Temperature Gauge on page 5‑12
and Engine Coolant Temperature Warning Light on page 5‑20 for more information. If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Assistance Program on page 13‑5. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, the fans should be running. If not, do not continue to run the engine and have the vehicle serviced. Notice: Engine damage from running the engine without coolant is not covered by the warranty.

4. With the coolant surge tank cap off, start the engine and let it run until the upper radiator hose starts getting hot. Watch out for the engine cooling fans. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the mark pointed to on the front of the coolant surge tank.

5. Replace the cap. Be sure the

cap is hand–tight and fully seated.

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.

Engine Overheating There is a coolant temperature gauge and a engine coolant temperature warning light on the instrument panel cluster that

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10-16

Vehicle Care

If Steam Is Coming from the Engine Compartment See Overheated Engine Protection Operating Mode on page 10‑16 for information on driving to a safe place in an emergency. If No Steam Is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem might not be too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day. . Stops after high-speed driving. Idles for long periods in traffic. Tows a trailer.

If the overheat warning displays with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the highest

3.

temperature and to the highest fan speed. Open the windows as necessary. In heavy traffic, let the engine idle in N (Neutral) while stopped. If it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and let the engine idle.

If the temperature overheat gauge is no longer in the overheat zone or an engine coolant temperature warning light no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come back on, continue to drive normally. If the warning continues, pull over, stop, and park the vehicle right away.

If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down. Also, see Overheated Engine Protection Operating Mode on page 10‑16.

Overheated Engine Protection Operating Mode This emergency operating mode allows the vehicle to be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, there is significant loss in power and engine performance. The engine coolant temperature warning light comes on the instrument panel, to indicate the vehicle has entered overheated engine protection operating mode.

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The temperature gauge also indicates an overheat condition exists. Driving extended km (miles) and/or towing a trailer in the overheat protection mode should be avoided.

Power Steering Fluid

See Engine Compartment Overview on page 10‑6 for information on the location of the power steering fluid reservoir. 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 Notice: Extremely small amounts of contamination can cause steering system damage and cause it to not work properly. Do not allow contaminants to contact the fluid side of the reservoir cap/ dipstick or to enter the reservoir. Check the level after the vehicle has been driven for at least 20 minutes so the fluid is warm. To check the power steering fluid: 1. Turn the ignition to LOCK/OFF and let the engine compartment cool down.

2. Wipe the cap and the top of the

reservoir clean.

3. Unscrew the cap and pull it

straight up.

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10-17

4. Wipe the dipstick with a

clean rag.

5. Replace the cap and completely

tighten it.

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

When the engine is hot, the level should be at the hot MAX level. When the engine is cold, the fluid level should be between MIN and MAX on the dipstick.

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Vehicle Care

What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11‑11. Always use the proper fluid.

Washer Fluid

What to Use When the vehicle needs windshield washer fluid, be sure to read the manufacturer's instructions before use. If 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 A WASHER FLUID LOW ADD FLUID message will be displayed on the Driver Information Center (DIC) when windshield washer fluid needs to be added to the vehicle. See Washer Fluid Messages on page 5‑35 for more information.

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 10‑6 for more information on 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 the 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 the windshield washer. It can damage the windshield washer system and paint.

Brakes This vehicle has 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 the vehicle is moving, except when applying the brake pedal firmly.

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{ WARNING

The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the 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 on page 12‑2.

Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer 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 the brakes are applied, 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. The vehicle was designed and tested with top-quality brake parts. When parts of the braking system are replaced, be sure to get new, approved replacement parts.

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10-19

If this is not done, the brakes might not work properly. For example, installing disc brake pads that are wrong for the vehicle, can change the balance between the front and rear brakes — for the worse. The braking performance expected can change in many other ways if the wrong replacement brake parts are installed.

Brake Fluid

The brake master cylinder reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview on page 10‑6 for the location of the reservoir.

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Vehicle Care

There are only two reasons why the brake fluid level in the reservoir might go down:

The brake fluid level goes down because of normal brake lining wear. When new linings are installed, the fluid level goes back up.

. A fluid leak in the brake

hydraulic system can also cause a low fluid level. Have the brake hydraulic system fixed, since a leak means that sooner or later the brakes will not work well.

Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove brake fluid, as necessary, only when work is done on the brake hydraulic system.

{ WARNING

If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the 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 on page 5‑18.

What to Add Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11‑11.

Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir.

{ WARNING

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

Notice

. Using the wrong fluid can

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

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. If brake fluid is spilled on the

vehicle's painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on the vehicle. If you do, wash it off immediately.

Battery Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview on page 10‑6 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.

Vehicle Storage

{ WARNING

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 on page 10‑62 for tips on working around a battery without getting hurt.

Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger.

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10-21

Starter Switch Check

{ WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle.

2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 9‑27. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral).

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Vehicle Care

If the vehicle starts in any other position, contact your dealer for service.

Automatic Transmission Shift Lock Control Function Check

{ WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle. It should be parked on a level surface.

2. Firmly apply the parking brake.

See Parking Brake on page 9‑27. Be ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the

ignition on, but do not start the engine. Without applying the regular brake, try to move the shift lever out of P (Park) with normal effort. If the shift lever moves out of P (Park), contact your dealer for service.

Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position.

The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). The ignition key should come out only in LOCK/OFF.

Contact your dealer if service is required.

Park Brake and P (Park) Mechanism Check { WARNING

When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.

To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

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Vehicle Care

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3. With the latch open, pull the wiper blade down toward the windshield far enough to release it from the J-hooked end of the wiper arm.

4. Remove the wiper blade.

Allowing the wiper blade arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be covered by the vehicle warranty. Do not allow the wiper blade to touch the windshield. 5. Reverse Steps 1 through 3 for

wiper blade replacement.

To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake.

Contact your dealer if service is required.

Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Maintenance Schedule on page 11‑3 for more information. Replacement blades come in different types and are removed in different ways. For proper windshield wiper blade length and type, see Maintenance Replacement Parts on page 11‑12. Notice: Allowing the wiper arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be

covered by your warranty. Do not allow the wiper arm to touch the windshield. To replace the windshield wiper blade: 1. Pull the wiper assembly away

from the windshield.

2. Lift up on the plastic latch in the middle of the wiper blade where the wiper arm attaches.

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Vehicle Care

Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if the vehicle is damaged in a crash, the headlamp aim may be affected. Aim adjustment to the low-beam headlamps may be necessary if oncoming drivers flash their high-beam headlamps at you (for vertical aim). If the headlamps need to be re-aimed, it is recommended that the vehicle be taken to the dealer for service.

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑28. For any bulb‐changing procedure not listed in this section, contact your dealer.

Halogen Bulbs

{ WARNING

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, Front Turn Signal, Sidemarker, and Parking Lamps

A. Sidemarker B. Low-Beam Headlamp C. High-Beam Headlamp D. Parking/Turn Signal Lamp

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To replace one of these bulbs: 1. Open the hood. See Hood on

page 10‑5.

Vehicle Care

10-25

5. Remove the round dust caps to

gain access to the bulbs.

6. Turn the old bulb

counterclockwise and remove it from the retaining ring by pulling it away from the headlamp.

3. Pull up on the plastic headlamp

retainer and remove it.

4. Pull the headlamp assembly

away from the vehicle and remove the electrical connector.

2. Remove the screw from the

headlamp assembly.

8.

7. Remove the electrical connector from the bulb by raising the lock tab and pulling the connector away from the bulb's base. Install the electrical connector to the bulb. Install the new bulb by inserting the smallest tab on the bulb base into the matching notch in the retaining ring. Turn the bulb a quarter-turn clockwise until it stops.

9.

10. Reinstall the dust caps.

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Vehicle Care

11. Push the headlamp assembly

12. Push down on the plastic

13. Reinstall the screw from the

toward the vehicle.

headlamp retainer to reinstall it.

headlamp assembly.

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Vehicle Care

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Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps

To replace one of these bulbs: 1. Open the trunk. See Trunk on

page 2‑9.

2. Remove the convenience net (if equipped). Unhook the net from the upper wing nut.

A. Rear Sidemarker Lamp B. Back-up Lamp C. Stoplamp/Taillamp/Turn Signal

3. Turn the upper wing nut

counterclockwise and remove it.

5. Turn the two hex nuts

counterclockwise to remove them.

6. Pull out the taillamp assembly

and disconnect the wiring harness.

7. Turn the bulb socket

counterclockwise to remove it. 8. Pull the old bulb straight out to

4. Pull the carpet away from the

remove it.

rear of the vehicle.

9. Push the new bulb straight in

until it clicks to install it.

10. Reverse steps 1 through 7 to

reinstall.

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Vehicle Care

License Plate Lamp To replace one of these bulbs:

1. Remove the two screws (A) from the license plate lamp assembly.

2. Pull the lamp assembly down

and turn the bulb socket counterclockwise and out of the lamp assembly.

3. Pull the old bulb straight out of

the socket. Install the new bulb.

4. 5. Reverse Steps 1 through 3 to

reinstall the license plate lamp assembly.

Replacement Bulbs

Electrical System

Exterior Lamp

Back-Up Front Parking/Turn Signal License Plate Lamp Headlamps

High-Beam Low-Beam

Sidemarker Stoplamp, Taillamp, and Turn Signal

Bulb

Number 921LL

3157NAK

194LL

H9
H11
194LL

3057

For replacement bulbs not listed here, contact your dealer.

Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.

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Vehicle Care

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Fuses and Circuit Breakers The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. 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 you replace a bad fuse with a new one of the identical size and rating.

Engine Compartment Fuse Block The engine compartment fuse block is located on the passenger side of the engine compartment, by the battery. See Engine Compartment Overview on page 10‑6 for more information on location. Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.

Headlamp Wiring An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. Windshield Wipers If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.

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Vehicle Care

Fuses

Usage

A/C CMPRSR Air Conditioning

ABS MTR 1

ABS MTR 2
AIR PUMP

AIR SOL

AIRBAG/ DISPLAY AUX PWR BATT 1
BATT 2
BATT 3
BATT 4

BCM

The vehicle may not have all of the fuses, relays, and features shown.

Compressor Antilock Brake System (ABS) Motor 1
ABS Motor 2
Air Pump Air Injection Reactor Solenoid

Airbag, Display

Auxiliary Power Battery 1
Battery 2
Battery 3
Battery 4
Body Control Module (BCM)

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Fuses

Usage

Fuses

Usage

Fuses

Usage

CHMSL/ BCK-UP

DISPLAY

DRL 1

DRL 2

ECM IGN

ECM/TCM

Center High-Mounted Stoplamp, Back-up Lamp Display Daytime Running Lamps 1
Daytime Running Lamps 2
Engine Control Module (ECM), Ignition ECM, Transmission Control Module (TCM)

EMISSIONS 1 Emissions 1
EMISSIONS 2 Emissions 2

ETC/ECM

Electronic Throttle Control, ECM

FAN 1
FAN 2

FOG LAMPS

FSCM

HDLP MDL

HORN HTD MIR IGN 1
INJ 2
INT LIGHTS

INT LTS/ PNL DIM

LT HI BEAM

Cooling Fan 1
Cooling Fan 2
Fog Lamps (If Equipped) Fuel System Control Module Headlamp Module Horn Heated Mirror Ignition 1
Injector 2
Interior Lamps Interior Lamps, Instrument Panel Dimmer Driver Side High-Beam Headlamp

LT LO BEAM

LT PARK

LT SPOT

LT T/SIG

ONSTAR PWR DROP/ CRANK RADIO

RT HI BEAM

RT LO BEAM

Driver Side Low-Beam Headlamp Driver Side Parking Lamp Left Spot Driver Side Turn Signal Lamp OnStar Power Drop, Crank Audio System Passenger Side High-Beam Headlamp Passenger Side Low-Beam Headlamp

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Vehicle Care

Fuses

Usage

RT PARK

RT SPOT

RT T/SIG

RVC SEN

STRG WHL STRTR TRANS VACUUM/ PUMP WPR WSW

Passenger Side Parking Lamp Right Spot Passenger Side Turn Signal Lamp Regulated Voltage Control Sensor Steering Wheel Starter Transmission

Vacuum Pump

Wiper Windshield Wiper

Relay

A/C CMPRSR FAN 1
FAN 2
FAN 3
VAC/PUMP PWR/TRN REAR DEFOG STRTR

Usage

Air Conditioning Compressor Cooling Fan 1
Cooling Fan 2
Cooling Fan 3
Vacuum Pump Powertrain

Rear Defogger

Starter

Instrument Panel Fuse Block

The fuse block is on the passenger side of the vehicle in the carpet molding. Remove the fuse block door to access the fuses.

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Wheels and Tires

Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer.

Fuses

Usage

DR/LCK HTD/SEAT PWR/MIR PWR/SEAT PWR/WNDW Power Window

Door Locks Heated Seats Power Mirrors Power Seats

RAP

S/ROOF TRUNK TRUNK XM

Retained Accessory Power Sunroof Trunk Trunk Relay XM™ Radio

The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses

Usage

AIRBAG AMP AUX CNSTR

Airbags Amplifier Auxiliary Outlets Canister

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Vehicle Care

{ WARNING . Poorly maintained and

improperly used tires are dangerous.

. Overloading the tires can

cause overheating as a result of too much flexing. There could be a blowout and a serious crash. See Vehicle Load Limits on page 9‑10.

. Underinflated tires pose the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold.

. Overinflated tires are more likely to be cut, punctured, or broken by a sudden

(Continued)

WARNING (Continued)

impact— such as when hitting a pothole. Keep tires at the recommended pressure.

. Worn or old tires can cause a

crash. If the tread is badly worn, replace them.

. Replace any tires that have been damaged by impacts with potholes, curbs, etc.

. Improperly repaired tires can

cause a crash. Only the dealer or an authorized tire service center should repair, replace, dismount, and mount the tires.

. Do not spin the tires in

excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode.

Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples 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,

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Vehicle Care

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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 the DOT (Department of Transportation) code are 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 on page 10‑49. (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) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (B) Temporary Use Only: The compact spare tire or temporary use tire has a tread life of approximately 5 000 km (3,000 mi) and should not be driven at speeds over 105 km/h (65 mph). The compact spare tire is for emergency use when a regular road tire has lost air and

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Vehicle Care

gone flat. If the vehicle has a compact spare tire, see Compact Spare Tire on page 10‑61 and If a Tire Goes Flat on page 10‑53. (C) Tire Identification Number (TIN): The letters and numbers following the DOT (Department of Transportation) code are 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 420 kPa (60 psi). For more information on tire pressure and inflation see Tire Pressure on page 10‑40. (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 Designations

Tire Size The following is 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.

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(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 index and speed rating of the tire. The load index represents