2014 Buick Enclave Owners Manual

page 10-19.

7. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10-8.

8. Engine Oil Dipstick (Out of

View). See “Checking Engine Oil” under Engine Oil on page 10-8.

9. Engine Cooling Fans (Out of

View). See Cooling System on page 10-12.

10. Engine Cover on page 10-7. 11. Brake Fluid Reservoir. See

“Brake Fluid” under Brakes on page 10-21.

12. Windshield Washer Fluid

Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10-20.

13. Engine Air Cleaner/Filter on

page 10-11.

Vehicle Care

10-7

Engine Cover

1. Oil Fill Cap 2. Engine Cover To remove: 1. Remove the oil fill cap (1). 2. Raise the engine cover (2) to release it from the retainers.

3. Lift and remove the engine

cover.

4. Reverse Steps 1–3 to reinstall

engine cover.

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10-8

Vehicle Care

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.

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 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.

{ Warning

The engine oil dipstick handle may be hot; it could burn you. Use a towel or glove to touch the dipstick handle.

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.

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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 11-12.

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.

{ Caution

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.

Vehicle Care

10-9

{ Caution

Failure to use the recommended engine oil 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. Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29°C (−20°F), an SAE 0W-30 oil may 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 of the correct

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Vehicle Care

specification. See “Specification” earlier in this section 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. 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.

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. 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.

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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. To reset the system: 1. Turn the ignition to ON/RUN,

with the engine off.

2. Press the vehicle information

button until OIL LIFE REMAINING displays.

3. Press and hold the set/reset

button until “100%” is displayed. Three chimes sound and the CHANGE ENGINE OIL SOON message goes off.

4. Turn the key to LOCK/OFF. If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the engine oil life system has not been reset. Repeat the procedure.

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 the dealer and have it repaired as soon as possible. Change the fluid at the intervals listed in Maintenance Schedule on page 11-3, and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11-12. { Caution

Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 11-12.

Vehicle Care

10-11

The transmission fluid will not reach the end of the dipstick unless the transmission is at operating temperature. If you need to check the transmission fluid level, please take the vehicle to your dealer.

Engine Air Cleaner/Filter

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 mile) interval. See Maintenance Schedule on page 11-3. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. See Engine Compartment Overview on page 10-6 for the location of the engine air cleaner/filter.

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Vehicle Care

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 (away from vehicle) to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter:

1. Air Duct Clamp 2. Electrical Connector 3. Screws

{ Caution

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.

1. Loosen the air duct clamp (1). 2. Disconnect the electrical

connector (2).

3. Remove the screws (3) and lift

4.

the cover assembly. Inspect or replace the air cleaner/filter.

5. Reverse Steps 1–4 to reinstall

the housing cover and reconnect the electrical connector to the sensor.

{ 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.

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1. Radiator Pressure Cap (Under

Sight Shield)

2. Engine Coolant Recovery Tank 3. Engine Cooling Fans (Out

of View)

{ 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.

(Continued)

Warning (Continued)

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.

{ Caution 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.

Vehicle Care

10-13

Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. See Maintenance Schedule on page 11-3 and Recommended Fluids and Lubricants on page 11-12. 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 10-17. 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. With plain water or the wrong

(Continued)

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Vehicle Care

Warning (Continued)

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. Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant.

Use a 50/50 mixture of 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.

. Protects against rust and

corrosion.

. Will not damage aluminum parts.

. Helps keep the proper engine

temperature.

{ Caution

If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants on page 11-12.

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. 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 recovery tank. If the coolant inside the coolant recovery 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 FULL COLD mark or the FULL COLD ISO symbol mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant recovery tank, but be sure the cooling system is cool before this is done. See Engine Overheating on page 10-17.

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Vehicle Care

10-15

If coolant is needed, add the proper DEX-COOL coolant mixture at the coolant recovery tank. How to Add Coolant to the Radiator

{ Warning

Steam and scalding liquids from a hot cooling system can blow out and burn you badly. 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 coolant is needed, add the proper mixture directly to the radiator, but be sure the cooling system is cool before this is done. Then check the recovery tank and add coolant if needed.

How to Add Coolant to the Recovery 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.

{ Caution

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

If recovery tank is empty, check the coolant level in the radiator before adding coolant to the recovery tank or take the vehicle to the dealer for service. See “How to Add Coolant to the Radiator” later in this section.

The coolant recovery tank cap has this symbol on it. When the engine is cold, the coolant level should be at or above the FULL COLD mark or the FULL COLD ISO symbol mark on the recovery tank. When the engine is hot, the level could be higher than the FULL COLD mark or the FULL COLD ISO symbol mark. If the coolant is below the FULL COLD mark or the FULL COLD ISO symbol mark when the engine is hot, there could be a leak in the cooling system. If the coolant is low, add the coolant or take the vehicle to a dealer for service.

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10-16

Vehicle Care

2. Remove the radiator pressure cap when the cooling system, including the upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise about one full turn. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left in the system.

3. Keep turning the pressure cap

slowly and remove it.

4. Fill the radiator to the base of the filler neck with the proper DEX-COOL coolant mixture.

1. Detach the fasteners and lift off

the panel that covers the radiator cap.

5. Fill the coolant recovery tank to the FULL COLD mark or to the FULL COLD ISO symbol mark.

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6. Reinstall the cap on the coolant

recovery tank but leave the radiator pressure cap off.

7. Start the engine and let it run until the upper radiator hose feels warm. Any time during this procedure, watch out for the engine cooling fans. If the coolant level inside the radiator filler neck is low, add more of the proper DEX-COOL coolant mixture through the filler neck until the level is back up to the base of the filler neck.

8.

9. Replace the pressure cap tightly.

At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap.

{ Caution

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 The vehicle has several indicators to warn of engine overheating. There is an engine coolant temperature gauge on the instrument panel cluster. See Engine Coolant Temperature Gauge on page 5-13. The vehicle may also display an ENGINE OVERHEATED IDLE ENGINE and ENGINE OVERHEATED STOP ENGINE message in the Driver Information Center (DIC). See Engine Cooling System Messages on page 5-32.

Vehicle Care

10-17

You may decide not to lift the hood when this warning appears, but instead get service help right away. See Roadside Assistance Program on page 13-5. If you do decide 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, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced.

{ Caution

Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty. See Overheated Engine Protection Operating Mode on page 10-19 for information on driving to a safe place in an emergency.

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Vehicle Care

If Steam Is Coming from the Engine Compartment { Warning

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 the engine if it overheats, and get out of the vehicle until the engine is cool.

(Continued)

Warning (Continued)

See Overheated Engine Protection Operating Mode on page 10-19 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 may 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 is displayed with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the highest

temperature and to the highest fan speed. Open the windows as necessary.

3. When 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 overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slow for about 10 minutes. Keep a safe vehicle distance from the car in front of you. If the warning does not come back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away.

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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” next in this section.

Overheated Engine Protection Operating Mode This emergency operating mode lets the vehicle 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 a significant loss in power and engine performance.

The temperature gauge indicates an overheat condition exists. Driving extended distances and/or towing a trailer in the overheat protection mode should be avoided. { Caution

After driving in the overheated engine protection operating mode, the engine oil will be severely degraded. Any repairs performed before the engine is cool may cause engine damage. Allow the engine to cool before attempting any repair. Repair the cause of coolant loss, change the oil, and reset the oil life system. See Engine Oil on page 10-8.

Vehicle Care

10-19

Power Steering Fluid

The power steering fluid reservoir is under the engine cover on the passenger side of the vehicle. See Engine Compartment Overview on page 10-6 for reservoir location. When to Check Power Steering Fluid It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired.

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10-20

Vehicle Care

How to Check Power Steering Fluid To check the power steering fluid: 1. Turn the key off and let the

engine compartment cool down. 2. Remove the engine cover. See

Engine Cover on page 10-7.

3. Wipe the cap and the top of the

reservoir clean.

4. Unscrew the cap and 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.

The fluid level should be somewhere between the MAX and MIN line on the dipstick in room temperature. If the fluid is on or below the MIN line, add fluid close to the MAX line.

What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11-12. Always use the proper fluid.

{ Caution

Adding Washer Fluid When the windshield washer fluid reservoir is low, a WASHER FLUID LOW ADD FLUID message will be displayed on the Driver Information Center (DIC). See Washer Fluid Messages on page 5-40.

Use of the incorrect fluid may damage the vehicle and the damages may not be covered by the vehicle warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants on page 11-12.

Washer Fluid

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

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 reservoir location.

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{ Caution

. Do not use engine coolant

(antifreeze) in the windshield washer. It can damage the windshield washer system and paint.

. 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.

. When using concentrated

washer fluid, follow the manufacturer instructions for adding water.

. 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.

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

{ 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.

{ Caution

Continuing to drive with worn-out brake pads could result in costly brake repair.

Vehicle Care

10-21

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. See Capacities and Specifications on page 12-2. Brake pads should be replaced as complete 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.

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Vehicle Care

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. 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. 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 5-19.

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Vehicle Care

10-23

Battery Refer to the replacement number on the original battery label when a new battery is needed.

{ 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.

What to Add Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11-12. 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.

{ Caution

. 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.

. 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.

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Vehicle Care

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 10-69 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.

All-Wheel Drive Transfer case fluid does not require checking unless there is a fluid leak or unusual noise. If required, have the transfer case serviced by your dealer.

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. Apply both the parking brake

and the regular brake. 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). 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.

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2. Apply the parking brake. 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 If equipped with a key type ignition, 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

Vehicle Care

10-25

pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only. 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

Front Wiper Blade Windshield wiper blades should be inspected for wear or cracking. Replacement blades come in different types and are removed in different ways. For the proper type and size, see Maintenance Replacement Parts on page 11-13.

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Vehicle Care

To replace the wiper blade assembly: 1. Pull the windshield wiper assembly away from the windshield.

2. Squeeze the tabs on each side

of the wiper blade assembly and slide the assembly off the end of the wiper arm.

2. Turn the wiper blade assembly, hold the wiper arm in position, and push the blade away from the wiper arm.

3. Replace the wiper blade. 4. Return the wiper arm and blade assembly to the rest position on the glass.

Windshield Replacement The vehicle is equipped with an acoustic windshield. If you ever have to have the windshield replaced be sure to get an acoustic windshield so you will continue to have the benefits an acoustic windshield can provide.

3.

Install the new blade onto the arm connector and make sure the tabs are fully set in the locked position. 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 your warranty. Do not allow the wiper blade arm to touch the windshield.

4. Repeat the steps for the other

blade.

Rear Wiper Blade To replace the rear wiper blade: 1. Pull the wiper blade assembly

away from the backglass. The rear wiper blade will not lock in a vertical position so care should be used when pulling it away from the vehicle.

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Headlamp Aiming Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your dealer.

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.

High Intensity Discharge (HID) Lighting

{ Warning

The high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.

After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.

Vehicle Care

10-27

Taillamps, Turn Signal, and Stoplamps

To replace one of these bulbs: 1. Open the liftgate. See Liftgate

on page 2-8.

2. Using a small flat bladed tool,

remove the screw covers by prying them from the bottom. 3. Remove the two hex screws

holding the taillamp assembly in place.

4. Pull out the taillamp assembly.

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Vehicle Care

5. Turn the bulb socket

counterclockwise and pull it straight out to remove it.

6. Replace the bulb. 7. Reverse Steps 3–5 to reinstall

the taillamp assembly. When reinstalling the taillamp assembly, the pin on the taillamp assembly must line up and be inserted correctly into the opening.

8. Replace the screw covers.

License Plate Lamp To replace one of these bulbs: 1. Remove the two push pins

holding each of the license plate lamps to the liftgate trim by unscrewing them.

2. Turn and pull the license plate

lamp forward through the liftgate trim opening.

3. Turn the bulb socket

counterclockwise and pull the bulb straight out of the socket. Install the new bulb.

4. 5. Reverse Steps 1–3 to reinstall

the license plate lamp.

Replacement Bulbs

Exterior Lamp

License Plate Lamp Rear Turn Signal and Taillamps

Bulb

Number 194LL 7443

(W21/5W)

For replacement bulbs not listed here, contact your dealer.

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Electrical System

High Voltage Devices and Wiring

{ Warning

Exposure to high voltage can cause shock, burns, and even death. The high voltage components in the vehicle can only be serviced by technicians with special training. High voltage components are identified by labels. Do not remove, open, take apart, or modify these components. High voltage cable or wiring has orange covering. Do not probe, tamper with, cut, or modify high voltage cable or wiring.

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.

Vehicle Care

10-29

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 and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. 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. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can.

Engine Compartment Fuse Block The underhood fuse block is in the engine compartment, on the passenger side of the vehicle.

{ Caution

Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.

To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.

Lift the cover for access to the fuse/ relay block.

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Vehicle Care

10-31

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

Fuses

Usage

A/C CLTCH Air Conditioning

ABS MTR

Clutch Antilock Brake System (ABS) Motor Adaptive Forward Lighting System Airbag System AUX POWER Auxiliary Power

AIRBAG

AFS

AUX

VAC PUMP

AWD

BATT 1
BATT 2
BATT 3
CIGAR

LIGHTER

Auxiliary Vacuum Pump All-Wheel-Drive System Battery 1
Battery 2
Battery 3
Cigarette Lighter

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Vehicle Care

Usage

Fuses

Usage

Fuses ECM 1

Engine Control Module 1

EMISSION 1 Emission 1
EMISSION 2 Emission 2
EVEN COILS Even Injector Coils

FAN 1
FAN 2

FSCM

FOG

LAMP (GMC)

HORN

HTD MIR

HUMIDITY/

MAF

Cooling Fan 1
Cooling Fan 2
Headlamp Washer (China)/Trailer Brake Fuel System Control Module Fog Lamps (GMC)

Horn Heated Outside Rearview Mirror Humidity Sensor/ MAF Sensor

HVAC BLWR Heating,

Ventilation, and Air Conditioning Blower

LT HI BEAM Left High-Beam

Headlamp

LT LO BEAM Left Low-Beam

LT PRK LT TRLR STOP/TRN

Headlamp Left Parking Lamp Trailer Left Stoplamp and Turn Signal

PCM IGN

ODD COILS Odd Injector Coils Powertrain Control Module Ignition PWR L/GATE Power Liftgate

PWR

OUTLET RR APO

Power Outlet

Rear Accessory Power Outlet

RR DEFOG Rear Defogger

Fuses

RR HVAC

Usage Rear Climate Control System

RT HI BEAM Right High-Beam

Headlamp

RT LO BEAM Right Low-Beam

RT PRK

RT TRLR STOP/TRN

Headlamp Right Parking Lamp Trailer Right Stoplamp and Turn Signal

RVC SNSR Regulated Voltage

S/ROOF/

SUNSHADE

SERVICE SPARE STOP LAMPS (CHINA ONLY) STRTR

Control Sensor Sunroof

Service Repair Spare Stoplamps (China Only)

Starter

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Fuses TCM

TRANS TRLR

BCK/UP

Usage Transmission Control Module Transmission Trailer Back-up Lamps

TRLR BRK Trailer Brake

TRLR

Trailer Parking Lamps

PRK LAMP TRLR PWR Trailer Power WPR/WSW Windshield Wiper/

Washer

Usage

Relays

A/C

CMPRSR CLTCH

Relays FAN 1
FAN 2
FAN 3
FOG

LAMP (GMC)

HI BEAM

HID/

LO BEAM

HORN

IGN

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10-33

Relays

Usage RR DEFOG Rear Window

RT TRLR STOP/TRN

Stop Lamps

(CHINA ONLY) TRLR

BCK/UP

WPR

WPR HI

Defogger Trailer Right Stoplamp and Turn Signal Lamp Stop Lamps (China Only)

Trailer Back-up Lamps Windshield Wiper Windshield Wiper High Speed

Usage Cooling Fan 1
Cooling Fan 2
Cooling Fan 3
Fog Lamps (GMC)

High-Beam Headlamps High Intensity Discharge (HID) Low-Beam Headlamps Horn Ignition Main Trailer Left Stoplamp and Turn Signal Lamp

Air Conditioning Compressor Clutch

LT TRLR STOP/TRN

AUX

VAC PUMP

CRNK

Auxiliary Vacuum Pump Switched Power

PRK LAMP Parking Lamp PWR/TRN

Powertrain

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Vehicle Care

Instrument Panel Fuse Block

The instrument panel fuse block is under the instrument panel on the passenger side of the vehicle. Pull down on the cover to access the fuse block.

Fuse Side

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

Fuses

Usage

) )

) ) )

AIRBAG

AMP BCK

UP/STOP

BCM

CNSTR VENT CTSY DR LCK

GMC NON HID = Lo Beam GMC NON HID = High Shutter Chevy = Fog Lamps Buick China = Rear Fog Lamp Airbag Amplifier Back-up Lamp/ Stoplamp Body Control Module Canister Vent

Courtesy Lamps Door Locks

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Vehicle Care

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Fuses DRL/

LO BEAM

DSPLY

Usage

Daytime Running Lamps Relay/Low Beam Headlamps Relay Display

FRT WSW Front Windshield

HTD/

COOL SEAT

HVAC

INADV PWR INT LAMPS

INFOTMNT/

MSM

Washer Heated/Cooling Seats Heating, Ventilation, and Air Conditioning Inadvertent Power/ Interior Light Pipe Lamps Infotainment/ Memory Seat Module

LT TRN SIG Driver Side Turn

Signal

Fuses OBS

DET/URS

PDM

Usage

Rear Park Assist/ Side Blind Zone Alert/Forward Collision Alert/ Universal Remote System Power Mirrors, Liftgate Release

PWR MODE Power Mode

PWR MIR

RDO

Power Mirrors Radio

REAR WPR Rear Wiper RT TRN SIG Passenger Side

STR WHL

ILLUM

Turn Signal Steering Wheel Illumination

USB CHRG USB Charging

Relay Side

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Vehicle Care

Usage

Wheels and Tires

Relays

LT/

PWR/SEAT

RT/

Usage

Driver Side Power Seat Relay Passenger Side Power Seat Relay

PWR/SEAT PWR/WNDW Power Windows

PWR/

COLUMN L/GATE

LCK

Relay Power Steering Column Relay Liftgate Relay Power Lock Relay

REAR/WSW Rear Window Washer Relay Power Unlock Relay

UNLCK

Relays DRL/

LO BEAM

Daytime Running Lamps Relay/ Low-Beam Headlamps Relay LT/UNLCK Driver Side Unlock

DRL/

LO BEAM

REAR FOG

Relay Daytime Running Lamps Relay (If Equipped) Rear Fog Lamps (China)

LAMPS (CHINA) FRT/WSW Front Windshield

Washer Relay

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.

{ Warning

. Poorly maintained and

improperly used tires are dangerous.

. Overloading the tires can