2016 Cadillac CTS Owners Manual

same time raise the hood.

To close the hood: Before closing the hood, be sure all filler caps are on properly. Then, bring the hood from full open to within 152 mm (6 in) of the closed position. Pause, then push the front center of the hood with a swift, firm motion to fully close the hood.

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Engine Compartment Overview

2.0L L4 LTG Engine

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1. Windshield Washer Fluid

Reservoir. See Washer Fluid 0 283.

2. Remote Positive (+) Battery

Terminal. See Jump Starting - North America 0 331.

3. Engine Compartment Fuse

Block 0 292.

4. Engine Coolant Surge Tank

and Pressure Cap. See Cooling System 0 276.

5. Remote Negative (-) Battery

Terminal. See Jump Starting - North America 0 331.

6. Engine Oil Fill Cap. See

Engine Oil 0 271.

7. Engine Cooling Fan (Out of View). See Cooling System 0 276.

8. Engine Oil Dipstick. See

Engine Oil 0 271.

9. Engine Air Cleaner/Filter 0 275. 10. Brake Fluid Reservoir. See

Brake Fluid 0 284.

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3.6L V6 LGX Engine

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1. Windshield Washer Fluid

Reservoir. See Washer Fluid 0 283.

2. Remote Positive (+) Battery

Terminal. See Jump Starting - North America 0 331.

3. Remote Negative (-) Battery

Terminal. See Jump Starting - North America 0 331.

4. Engine Coolant Surge Tank

and Pressure Cap. See Cooling System 0 276.

5. Engine Compartment Fuse

Block 0 292.

6. Engine Cooling Fan (Out of View). See Cooling System 0 276.

7. Engine Oil Fill Cap. See

Engine Oil 0 271.

8. Engine Oil Dipstick. See

Engine Oil 0 271.

9. Engine Air Cleaner/Filter 0 275. 10. Brake Fluid Reservoir. See

Brake Fluid 0 284.

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3.6L V6 LF3 Engine

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1. Windshield Washer Fluid

Reservoir. See Washer Fluid 0 283.

2. Remote Positive (+) Battery

Terminal. See Jump Starting - North America 0 331.

3. Engine Compartment Fuse

Block 0 292.

4. Engine Coolant Surge Tank

and Pressure Cap. See Cooling System 0 276.

5. Remote Negative (-) Battery

Terminal. See Jump Starting - North America 0 331.

6. Engine Cooling Fan (Out of View). See Cooling System 0 276.

7. Engine Oil Fill Cap. See

Engine Oil 0 271.

8. Engine Oil Dipstick. See

Engine Oil 0 271.

9. Engine Air Cleaner/Filter 0 275. 10. Brake Fluid Reservoir. See

Brake Fluid 0 284.

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6.2L V8 LT4 Engine

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1. Windshield Washer Fluid

Reservoir. See Washer Fluid 0 283.

2. Remote Positive (+) Battery

Terminal. See Jump Starting - North America 0 331.

3. Engine Compartment Fuse

Block 0 292.

4. Engine Coolant Surge Tank

and Pressure Cap. See Cooling System 0 276.

5. Remote Negative (-) Battery

Terminal. See Jump Starting - North America 0 331.

6. Engine Oil Dipstick. See

Engine Oil 0 271.

7. Engine Cooling Fan (Out of View). See Cooling System 0 276.

8. Engine Oil Fill Cap (Out of

View). See Engine Oil 0 271.

9. Engine Air Cleaner/Filter 0 275. 10. Brake Fluid Reservoir. See

Brake Fluid 0 284.

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 0 273.

. 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

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must be on level ground. The engine oil dipstick handle is a loop. See Engine Compartment Overview 0 264 for the location of the engine oil dipstick. 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 wipe it

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

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When to Add Engine Oil

2.0L LTG L4 Turbo

3.6L LF3 V6 Twin Turbo

3.6L LGX V6 Shown, 6.2L LT4 V8

Similar

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 0 361.

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 0 264 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 0 356.

Specification Ask for and use engine oils that meet the dexos1™ specification. Engine oils that have been approved by GM as meeting the dexos1 specification are marked with the dexos1 approved logo. See www.gmdexos.com.

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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 Use SAE 5W-30 viscosity grade engine oil. 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 specification. See “Specification” earlier in this section.

Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils meeting the dexos1 specification 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

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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. See Engine Oil Messages 0 142. 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

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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. To reset the system:

1. Using the DIC buttons, display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) 0 134 and Engine Oil Messages 0 142.

2. Press the SEL button and hold to clear the CHANGE ENGINE OIL SOON message and reset the oil life at 100%. Be careful not to reset the oil life display accidentally at any time other than after the oil is changed. It cannot be reset accurately until the next oil change.

The oil life system can also be reset as follows: 1. Turn the ignition on with the

engine off.

2. Fully press and release the

accelerator pedal three times within five seconds. If the CHANGE ENGINE OIL SOON message is not on, the system is reset.

The system is reset when the CHANGE ENGINE OIL SOON message is 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

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. The vehicle is not equipped with a transmission fluid level dipstick. There is a special procedure for checking and changing the transmission fluid. Because this procedure is difficult, this should be done at the dealer. Contact the dealer for additional information.

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Change the fluid and filter at the intervals listed in Maintenance Schedule 0 347, and be sure to use the fluid listed in Recommended Fluids and Lubricants 0 356.

Engine Air Cleaner/Filter The engine air cleaner/filter is in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview 0 264. When to Inspect the Engine Air Cleaner/Filter For intervals on changing and inspecting the engine air cleaner/ filter, see Maintenance Schedule 0 347. How to Inspect the Engine Air Cleaner/Filter Do not start the engine or have the engine running with the engine air cleaner/filter housing open. Before removing the engine air cleaner/ filter, make sure that the engine air cleaner/filter housing and nearby components are free of dirt and debris. Remove the engine air cleaner/filter. Lightly tap and shake

the engine air cleaner/filter (away from the vehicle), to release loose dust and dirt. Inspect the engine air cleaner/filter for damage, and replace if damaged. Do not clean the engine air cleaner/filter or components with water or compressed air. To inspect or replace the air cleaner/ filter:

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2. Lift the air/cleaner/filter cover

away from the air cleaner/filter housing.

3. Pull out the air cleaner/filter. 4.

Inspect or replace the air cleaner/filter.

5. Reverse Steps 1-3 to reinstall

the air cleaner/filter cover.

2.0L L4 LTG Engine Shown, 3.6L

V6 LGX Engine Similar

1. Remove the four screws on top

of the air cleaner/filter cover.

3.6L V6 LF3 Engine

1. Lower Air Duct Clamp 2. Lower Electrical Connector 3. Upper Air Duct Clamp 4. Upper Electrical Connector 5. Screws

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1. Disconnect the lower and

upper outlet ducts by loosening the lower (1) and upper (3) air duct clamps.

2. Disconnect the lower (2) and

upper (4) electrical connectors and wiring attachments to air cleaner/filter cover.

3. Remove the screws (5) on top

of the air cleaner/filter cover. 4. Lift the air cleaner/filter cover away from the air cleaner/filter housing.

5. Pull out the air cleaner/filter. 6.

Inspect or replace the air cleaner/filter.

7. Reverse Steps 1-5 to reinstall

the air cleaner/filter cover.

{ 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.

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.

6.2L V8 LT4 Engine

1. Remove the screws on top of

the air cleaner/filter cover.

2. Lift the air cleaner/filter cover away from the air cleaner/filter housing.

3. Pull out the air cleaner/filter. 4.

Inspect or replace the air cleaner/filter.

5. Reverse Steps 1-3 to reinstall

the air cleaner/filter cover.

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2.0L L4 LTG Engine

3.6L V6 LGX Engine

3.6L V6 LF3 Engine

1. Engine Coolant Surge Tank

1. Engine Coolant Surge Tank

1. Engine Coolant Surge Tank

and Pressure Cap

and Pressure Cap

and Pressure Cap

2. Engine Cooling Fan (Out

2. Engine Cooling Fan (Out

2. Engine Cooling Fan (Out

of View)

of View)

of View)

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{ 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.

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.

Engine Coolant The cooling system in the vehicle is filled with DEX-COOL engine coolant. See Maintenance Schedule 0 347 and Recommended Fluids and Lubricants 0 356. 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 0 281. 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 mixture, the engine could get too hot but you would not get the overheat warning. The engine

(Continued)

6.2L V8 LT4 Engine

1. Engine Coolant Surge Tank

and Pressure Cap

2. Engine Cooling Fan (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.

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Warning (Continued)

Caution

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. 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.

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 0 356.

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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Checking Coolant The vehicle must be on a level surface when checking the coolant level. It is normal to see coolant moving in the upper coolant hose return line when the engine is running. It is also normal to see bubbles entering the surge tank through the small hose. 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 COLD FILL line, add a 50/50 mixture of clean drinkable water and DEX-COOL coolant. Be sure the cooling system is cool before this is done. It is normal for the coolant level in the bottom chamber to rise and fall with operating temperature and ambient conditions. Coolant will evaporate from the bottom chamber in normal operation. This will

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happen faster when the vehicle is driven for long periods in hot, dry conditions. If no coolant is visible in the coolant surge tank, add coolant as follows: How to Add Coolant to the Coolant Surge Tank

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 no problem is found, check to see if coolant is visible in the coolant surge tank. If coolant is visible but the coolant level is not at the bottom of the fill neck, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it.

{ 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.

{ 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 mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others (Continued)

Warning (Continued)

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

Caution

In cold weather, water can freeze and crack the engine, radiator, heater core, and other parts. Use the recommended coolant and the proper coolant mixture.

{ 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.

1. Remove the coolant surge tank

pressure cap from the top chamber when the cooling

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system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise. If you hear a hiss, wait for that to stop. This will allow any pressure still left to be vented out the discharge hose.

2. Keep turning the pressure cap slowly and remove it. Open the surge tank service port cap to the lower chamber. The service port is behind the top chamber.

3. Fill the surge tank top chamber

with the proper DEX-COOL coolant mixture to the bottom of the fill neck. The top chamber needs to be completely full. Fill the surge tank bottom chamber through the service port to approximately half.

4. With the coolant surge tank

pressure cap off and the surge tank service port cap open, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan(s). By this time, the coolant level inside the coolant surge tank top chamber may be lower. If the level is lower, add more of the proper DEX-COOL coolant mixture to the surge tank top chamber until the level reaches the bottom of the fill neck.

5. Replace the surge tank

pressure cap tightly and close the surge tank service port cap.

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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.

Check the level in the surge tank top and bottom chambers when the cooling system has cooled down. If the coolant is not at the proper levels, repeat Steps 1–3 and reinstall the pressure cap and close the service port. If the coolant still is not at the proper levels when the system cools down again, see your dealer.

Engine Overheating The vehicle has an indicator to warn of the engine overheating. If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Service 0 367.

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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 fan is running. If the engine is overheating, the fan should be running. If it is not, do not continue to run the engine. 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.

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. Just turn it

(Continued)

Warning (Continued)

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 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.

If Steam Is Coming from the Engine Compartment with No Overheat Warning (V-Series Only) The V-Series hood vent is functional, and will allow water from rain and car washes to enter the engine compartment and contact hot surfaces. If steam is seen coming from the hood vent with no accompanying overheat warning, no action is required.

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.

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 overheat warning 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

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front. 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. 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.

Washer Fluid

What to Use When windshield washer fluid is needed, 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

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview 0 264 for reservoir location.

Caution

. Do not use washer fluid that

contains any type of water repellent coating. This can cause the wiper blades to chatter or skip.

. Do not use engine coolant

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

(Continued)

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Caution (Continued)

. 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 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

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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.

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.

If equipped with high performance brake linings, there could be an increased build-up of brake dust as well as minor noises as compared to standard brake linings. 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 0 361. 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 may be required. Replacing Brake System Parts Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance expected can change in many other ways if the wrong

replacement brake parts are installed or parts are improperly installed. Cold Weather Brake Operation (CTS-V Model) High performance brake components may bind and clunk when moving the vehicle. This may be noticeable after parking when the brakes have been wet, such as when driving in the rain or after a car wash. This is normal for brakes with high friction pads and does not affect the operation of the brakes. Apply the brakes several times until the binding or clunking stops. Drive the vehicle and apply the brakes several times if it is washed before long-term storage.

Brake Fluid

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The brake master cylinder reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 264 for the location of the reservoir. There are only two reasons why the brake fluid level in the reservoir may go down: . Normal brake lining wear. When

new linings are installed, the fluid level goes back up. . A fluid leak in the brake

hydraulic system. Have the brake hydraulic system fixed. With a leak, the brakes will not work well.

Always clean the brake fluid reservoir cap and the area around the cap before removing it. 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 fluid, as necessary, only when work is done on the brake hydraulic system.

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{ Warning

{ 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 0 127. Brake fluid absorbs water over time. Replace brake fluid at the specified intervals to prevent increased stopping distance. See Maintenance Schedule 0 347.

What to Add Use only GM approved DOT 3
brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 356.

The wrong or contaminated brake fluid could result in damage to the brake system. This could result in the loss of braking leading to a possible injury. Always use the proper brake fluid.

Caution

If brake fluid is spilled on the vehicle's painted surfaces, the paint finish can be damaged. Immediately wash off any painted surface.

Battery - North America The original equipment battery is maintenance free. Do not remove the cap and do not add fluid. The battery is in the trunk, behind the trim panel, on the driver side of the vehicle. Refer to the

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replacement number shown on the original battery label when a new battery is needed.

{ Warning WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer. WASH HANDS AFTER HANDLING. See California Proposition 65 Warning 0 261.

After a power loss, such as disconnecting the battery or removing the maxi fuses in the power distribution fuse block, the following steps must be performed to calibrate the electronic throttle control. If this is not done, the engine will not run properly. 1. Turn the ignition on but do not

start the engine.

2. Leave the ignition on for at

least three minutes so that the electronic throttle control will cycle and relearn its home position.

3. Turn the ignition off. 4. Start and run the engine for at

least 30 seconds.

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 - North America 0 331 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 If the vehicle is equipped with All-Wheel-Drive (AWD), this is an additional system that needs lubrication. Transfer Case

When to Check Lubricant It is not necessary to regularly check the transfer case fluid unless a leak is suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired.

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How to Check Lubricant

1. Fill Plug 2. Drain Plug

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2. Firmly 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.

To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the fill plug hole, on the transfer case, some lubricant will need to be added. Add enough lubricant to raise the level to the bottom of the fill plug hole. Use care not to overtighten the fill plug.

What to Use Refer to Recommended Fluids and Lubricants 0 356 to determine what kind of lubricant to use.

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.

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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 Electric Parking Brake 0 214. 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.

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

(Continued)

Warning (Continued)

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.

. 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 and cracking. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts 0 357.

Caution

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 the vehicle warranty. Do not allow the wiper arm to touch the windshield.

To replace the windshield wiper blade: 1. Pull the windshield wiper assembly away from the windshield. The passenger side wiper arm has limited travel.

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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.

Driver Assistance Systems When a windshield replacement is needed and the vehicle is equipped with a front-looking camera sensor for the Driver Assistance Systems, the windshield must be installed according to GM specifications for these systems to work properly. If it is not, there may be unexpected behavior and/or messages from these systems. See Object Detection System Messages 0 144.

2. Press the button in the middle

of the wiper arm connector, and pull the wiper blade away from the arm connector. 3. Remove the wiper blade. 4. Reverse Steps 1–3 for wiper

blade replacement.

Windshield Replacement

HUD System The windshield is part of the HUD system. If the windshield must be replaced, get one that is designed for HUD or the HUD image may look out of focus.

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Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs 0 291. 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.

High Intensity Discharge (HID) Lighting

License Plate Lamp

{ 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.

LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.

Lamp Assembly

Bulb Assembly

1. Bulb Socket

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2. Bulb 3. Lamp Assembly

To replace one of these bulbs: 1. Push the lamp assembly (3)

toward the center of the vehicle.

2. Pull the lamp assembly down

to remove.

3. Turn the bulb socket (1)

counterclockwise to remove it from the lamp assembly (3).

4. Pull the bulb (2) straight out of

the bulb socket (1).

5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.

6. Push the lamp assembly back

into position until the release tab locks into place.

Replacement Bulbs

Electrical System

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291

Exterior Lamp

License Plate Lamp

Bulb

Number W5W LL

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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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. Wiper function is available immediately after the wiper switch is set to off, and back to on. To protect the wiper motor from overheating, the wipers may slow down when the windshield is dry for a long period of time. If a period of dry operation, or little moisture, exceeds ten minutes, the wipers may switch to intermittent operation, and remain there. When moisture is again detected on the windshield, wiper operation will return to the operator selected speed. 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.

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 damage caused by electrical problems. To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as possible.

To identify and check fuses, circuit breakers, and relays, see Engine Compartment Fuse Block 0 292, Instrument Panel Fuse Block 0 295, and Rear Compartment Fuse Block 0 298.

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

Lift the fuse block cover to access the fuses.

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

Caution

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

Number

Usage

Not used

Number

Usage

Not used

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Number

Usage

Number

*3

*8

10
11
12
13

14

15
16
*17
18

Passenger motorized seat belt Body control module 6
Not used Driver power seat Not used Headlamp washer relay Not used Not used Not used Not used Passenger power seat Body control module 5
Front wiper Not used Headlamp washer Not used

19

20

*21
22

23
24
25

*26
27

28

*29

30

31

Usage Antilock brake system pump Antilock brake system valve AIR pump Driver motorized seat belt Wiper control relay Wiper speed relay Engine control module relay AIR pump relay Spare, heated seat 2
Body control module 1, spare AFS AHL, pedestrian protection Passenger window switch Body control module 7

Number

Usage

32
33
34

35

36
37
38

39

40

41
*42
43
44
45
46
47

Sunroof Not used AOS display, MIL ignition Rear electrical center ignition Spare PT fuse Oxygen sensor Ignition coils, injectors Ignition coils, injectors, spare Engine control module Fuel heater AIR solenoid relay Washer Not used Front washer relay Not used Instrument panel body ignition

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Number

Usage

Number

Usage

48

49

*50

*51
*52
53

*54
55

*56
57

58
59
60
*61
62

Fuel system control module ignition Heated steering wheel Steering column lock Coolant pump Coolant pump relay Air conditioning compressor clutch AIR solenoid Transmission control module, spare Headlamp low relay Headlamp high relay Starter Starter relay Run, crank relay Vacuum pump relay Air conditioning control relay

*63

*64

*65

66

67
68
69
70
71

72

*73

74

Adaptive headlamp leveling Left high intensity discharge headlamp Right high intensity discharge headlamp Headlamp high left/ right Horn Horn relay Cooling fan Aero shutter Transmission control module ignition Engine control module ignition Brake vacuum pump Not used

* Optional

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Instrument Panel Fuse Block The instrument panel fuse block is in the end of the driver side of the instrument panel.

To access the fuses, remove the end panel by gently prying with a plastic tool near each clip, beginning at the point shown.

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To install the end cover, insert the tabs on the back of the cover into the slots in the instrument panel at the points shown. Align the clips with the slots in the instrument panel, and press the cover into place. The vehicle may not be equipped with all of the fuses and relays shown.

Mini Fuses

Usage

Motorized cupholder

Mini Fuses

Usage

Electric steering column lock

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Circuit

Breakers

CB1

CB7

Relays

K10

K605
K644

Usage

Retained accessory power, accessory power outlet power Spare

Usage

Retained accessory power, Accessory Logistics Glove box release

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Mini Fuses

Usage

Mini Fuses

Usage

10
11

12

13
14
15
16
17
18
19
20
21

Data link connector Heater, ventilation, and air conditioning control Tilt and telescoping steering column Spare Glove box release Shunt Body control module 1
Body control module 5
Spare Spare Spare Spare Spare Spare Spare Spare Spare

22

23

24
25

26
27

28
29
30

J Case Fuses

31
32
33

Sensing diagnostic module, automatic occupant sensing Radio, DVD/Heater, ventilation, and air conditioning Display Heated steering wheel Wireless charger Steering wheel switches Spare Visor Spare

Usage

Spare Spare Front heater, ventilation, and air conditioning blower

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Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment. The vehicle may not be equipped with all of the fuses, relays, and features shown.

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Number

Usage

Number

*1

*4