2016 Buick Regal Owners Manual

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 controls on the

right side of the steering wheel, display REMAINING OIL LIFE

on the DIC. See Driver Information Center (DIC) (Base Level Cluster) 0 124 or Driver Information Center (DIC) (Uplevel Cluster) 0 126. When remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages 0 133.

2. Press V on the DIC controls

and hold down for a few seconds 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 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.

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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. Contact your dealer for additional information. The procedure can be found in the service manual. To purchase a service manual, see Service Publications Ordering Information 0 333. Change the fluid at the intervals listed in Maintenance Schedule 0 307, and be sure to use the fluid listed in Recommended Fluids and Lubricants 0 317.

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Manual Transmission Fluid It is not necessary to check the manual 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. See Recommended Fluids and Lubricants 0 317 for the proper fluid to use.

Hydraulic Clutch For vehicles with a manual transmission, it is not necessary to regularly check brake/clutch fluid unless there is a leak suspected. Adding fluid will not correct a leak. A fluid loss in this system could indicate a problem. Have the system inspected and repaired.

When to Check and What to Use

The brake/hydraulic clutch fluid reservoir cap has this symbol on it. The common hydraulic clutch and brake master cylinder fluid reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 223 for reservoir location. How to Check and Add Fluid Visually check the brake/clutch fluid reservoir to make sure the fluid level is at the MIN (minimum) line on the side of the reservoir. The brake/ hydraulic clutch fluid system should be closed and sealed.

Do not remove the cap to check the fluid level or to top off the fluid level. Remove the cap only when necessary to add the proper fluid until the level reaches the MIN line.

Engine Air Cleaner/Filter See Engine Compartment Overview 0 223 for the location of the engine air cleaner/filter. When to Inspect the Engine Air Cleaner/Filter For intervals on changing and inspecting the engine air cleaner/ filter, see Maintenance Schedule 0 307. 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

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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.

2.0L L4 Turbo Engine

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

To inspect or replace the engine air cleaner/filter: 1. Disconnect the outlet duct by

loosening the air duct clamp (3).

2. Disconnect the electrical

connector (2).

3. Remove the screws (1) on top of the engine air cleaner/filter housing.

4. Lift the filter cover housing

away from the air cleaner/filter housing.

5. Pull out the filter. 6.

Inspect or replace the engine air cleaner/filter.

7. Reverse Steps 2-4 to reinstall

the filter cover housing.

2.4L L4 Engine without eAssist

Shown, 2.4L L4 Engine with

eAssist Similar

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

To inspect or replace the engine air cleaner/filter: 1. Open the hood. See Hood

0 222.

2. Disconnect the outlet duct by

loosening the air duct clamp (2).

3. Disconnect the electrical

connector (3).

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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. When it is safe to lift the hood:

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Vehicle Care

4. Remove the screws (1) on top of the engine air cleaner/filter housing.

5. Lift the filter cover housing

away from the engine air cleaner/filter housing.

6. Pull out the filter. 7.

Inspect or replace the engine air cleaner/filter.

8. Reverse Steps 2-4 to reinstall

the filter cover housing.

{ 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.

2.0L L4 Turbo Engine

1. Engine Cooling Fans (Out

of View)

2. Coolant Surge Tank and

Pressure Cap

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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.

2.4L L4 Engine without eAssist

2.4L L4 Engine with eAssist

1. Engine Cooling Fans (Out

1. Engine Cooling Fans (Out

of View)

of View)

2. Coolant Surge Tank and

2. Coolant Surge Tank and

Pressure Cap

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.

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Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. 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 0 238. 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

(Continued)

Warning (Continued)

Caution

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.

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 0 317.

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. 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 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

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 indicated level mark, 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

(Continued)

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Warning (Continued)

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.

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.

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2.0L L4 Turbo Engine Shown, 2.4L L4 Engine with or without eAssist

Similar

1. Remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise about one-quarter of a turn. 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.

3. Fill the coolant surge tank with the proper DEX-COOL coolant mixture to the indicated level mark.

4. With the coolant surge tank

pressure cap off, start the engine and let it run until you can feel the upper radiator hose 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 DEX-COOL coolant mixture to

the coolant surge tank until the level reaches the indicated level mark.

5. Replace the pressure cap

tightly.

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

Engine Overheating The vehicle has an engine coolant temperature gauge and may also have an engine coolant temperature warning light on the instrument cluster to warn of engine overheating. See Engine Coolant Temperature Gauge 0 111 and Engine Coolant Temperature Warning Light 0 120. If it is decided not to lift the hood when this warning appears, but instead get service help right away, see Roadside Assistance Program 0 328.

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If it is decided 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.

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 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.

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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 engine coolant temperature gauge is no longer in the overheat zone or the 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 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.

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview 0 223 for reservoir location.

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

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.

. 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.

(Continued)

Caution (Continued)

. 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 heard all the time when 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.

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. 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 0 321. 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.

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Brake Fluid

The brake master cylinder reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 223 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.

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Vehicle Care

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.

What to Add Use only GM approved DOT 3
brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 317.

{ 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 0 116. Brake fluid absorbs water over time. Replace brake fluid at the specified intervals to prevent increased stopping distance. See Maintenance Schedule 0 307.

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.

This vehicle has a standard 12-volt battery. Refer to the replacement number on the original battery label when a new standard 12-volt battery is needed. eAssist vehicles also have a high voltage battery. Only a trained service technician with the proper knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service. The dealer has information on how to recycle the high voltage battery. There is also information available at http://www.recyclemybattery.com.

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The eAssist system high voltage battery is cooled with air drawn from the vehicle interior. The cold air intake for the battery is behind the rear seat, on the filler panel. Do not cover the intake.

{ 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 0 220.

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Vehicle Storage

All-Wheel Drive

{ 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 (with or without eAssist) 0 291 or Jump Starting - North America (On-board with eAssist Only) 0 290 for tips on working around a battery without getting hurt.

Infrequent Usage: Remove the 12-volt battery black, negative (−) cable from the battery to keep the battery from running down. Extended Storage: Remove the 12-volt battery black, negative (−) cable from the battery or use a battery trickle charger. Remember to reconnect the battery when ready to drive the vehicle.

Transfer Case Under normal driving conditions, transfer case fluid does not require maintenance 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.

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Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

3. For automatic transmission

vehicles, 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. For manual transmission vehicles, put the shift lever in Neutral, push the clutch pedal down halfway, and try to start the engine. The vehicle should start only when the clutch pedal is pushed down all the way to the floor. If the vehicle starts when the clutch pedal is not pushed all the way down, 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. 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

(Continued)

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Warning (Continued)

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 or cracking. It is a good idea to clean the wiper blade assembly on a regular basis. When worn, or when cleaning is ineffective, replace the wiper blade. For proper windshield wiper blade length and type, see Maintenance Replacement Parts 0 318.

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 wiper blade: 1. Pull the wiper assembly away

from the windshield.

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

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. 5. Reverse Steps 1–3 for wiper

blade replacement.

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Vehicle Care

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 0 249. 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

{ 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.

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Headlamps, Front Turn Signal and Parking Lamps

Low-Beam Headlamp/Daytime Running Lamp (Base) 1. For the driver side bulb,

remove the windshield washer bottle filler neck by firmly pulling it straight up and out of the bottle.

2. Remove the cap from the back

of the headlamp assembly.

3. Disconnect the electrical

connector.

4. Remove the bulb socket from

the headlamp assembly.

5. Reverse steps 1–4 to install. High/Low-Beam Headlamps (Uplevel) The high/low-beam headlamps on the uplevel headlamp system are High Intensity Discharge (HID) and should be replaced by your dealer.

Front Turn Signal and Sidemarker Lamps (Base and Uplevel) 1. Remove the outside cap from

the uplevel headlamp assembly.

2. Remove the bulb socket from

the headlamp assembly.

3. Remove the bulb from the

socket.

4. Reverse Steps 1–3 to install.

Fog Lamps To replace the fog lamp bulb: 1. Locate the bulb assembly

under the front fascia.

2. Disconnect the electrical connector from the bulb assembly.

3. Remove the bulb by turning it counterclockwise and pulling it straight out of the assembly.

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247

4.

Install the new bulb by turning it clockwise into the assembly.

5. Reconnect the electrical

connector to the bulb assembly.

Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps To replace any one of these bulbs: 1. Open the trunk. See Trunk

Release 0 10.

2. Remove the trunk trim panel

push pin.

3. Pull the trunk trim panel back to gain access to the taillamp assembly.

4. Remove the three nuts that

secure the taillamp assembly. 5. Remove the taillamp assembly

and disconnect the wiring harness connector.

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License Plate Lamp

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Vehicle Care

6. Turn the bulb socket

counterclockwise to remove it. 7. Pull the bulb from the socket. 8. 9. Turn the bulb socket clockwise

Install a new bulb.

to install it.

10. Reverse Steps 2–4 to reinstall

the taillamp assembly.

Lamp Assembly

Bulb Assembly

1. Bulb Socket 2. Bulb 3. Lamp Assembly

To replace one of these bulbs: 1. Push the release tab toward

the lamp assembly.

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.

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Replacement Bulbs

Electrical System

Exterior Lamp

Back-up Lamp

Fog Lamp Front Turn Signal Lamp (Base) Front Turn Signal Lamp (Uplevel) Low-Beam Headlamp (Base) High-Beam Headlamp (Base) License Plate Lamp Daytime Running Lamp (DRL) (Base) Turn Signal Lamp

Sidemarker Lamp

Bulb

Number W16W or 921
H10

WY21W

PSY24W

HIR2

HIR2

194
W21/

5W ULL W21W or 7440

194

For replacement bulbs not listed here, contact your dealer.

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 or labels. 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.

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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. 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.

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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.

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 0 250 and Instrument Panel Fuse Block 0 254.

Engine Compartment Fuse Block

To remove the fuse block cover, press the three retaining clips on the cover and lift it straight up.

Caution

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

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Engine Compartment Fuse Block

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

Fuse

Number

Usage

Transmission Control Module Engine Control Module

Fuse

Number

Usage

Not Used Not Used Ignition, Transmission Control Module, Engine Control Module

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Fuse

Number

Usage

10

11
12
13

14
15

16

17
18
19
20

Windshield Wiper BPIM (eAssist Only) Not Used Fuel Injection, Ignition System Engine Control Module Oxygen Sensor Starter Fuel System Control Module Trunk Release MGU Coolant Pump (eAssist Only) Heated Steering Wheel Not Used BPIM (eAssist Only) Not Used Not Used

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Fuse

Number

Usage

Fuse

Number

Usage

Fuse

Number

Usage

21

22

23
24

25
26

27

28

29

30

31
32

33

Rear Power Windows Antilock Brake System Valve Obstacle Detection Front Power Windows Power Outlets Antilock Brake System Pump Electric Parking Brake Rear Window Defogger Left-Hand Seat Lumbar Right-Hand Seat Lumbar A/C Clutch Body Control Module 6
Heated Front Seats

34
35
36
37

38

39
40
41
42
43

44

45
46

Sunroof Infotainment System Adaptive Cruise Right-Hand High-Beam Headlamp Left-Hand High-Beam Headlamp All-Wheel Drive Not Used Vacuum Pump Radiator Fan Passive Entry/ Passive Start Transmission Auxiliary Pump (eAssist Only) Radiator Fan Terminal 87, Main Relay

47
48
49

50

51
52

53

54
55

56
57
58

Oxygen Sensor Fog Lamps Right-Hand Low Beam, High Intensity Discharge Headlamp Left-Hand Low Beam, High Intensity Discharge Headlamp Horn Motor Indicator Lamp Inside Rearview Mirror Rear Camera Power Windows/ Mirrors Windshield Washer Not Used Not Used

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Fuse

Number

Usage

Relay

Number

Usage

59

60
61
62

63
64

65
66

67

68
69
70

71

Secondary Air Induction (eAssist Only) Heated Mirrors Not Used Canister Vent Solenoid Not Used Heater, Ventilation, and Air Conditioning Pump (eAssist Only) Not Used SAI Check Valve (eAssist Only) Fuel System Control Module Not Used Battery Sensor Right Low-Beam Headlamp/DRL Not Used

10
11

12
13

Air Conditioning Control Starter Not Used Front Wiper (Step 2) Front Wiper (Step 1, Interval) Right Low-Beam Headlamp/DRL Main Relay Auxiliary Heater Pump (eAssist Only) Cooling Fan Cooling Fan Transmission Auxiliary Pump (eAssist Only) Not Used Cooling Fan

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Relay

Number

14

15
16

17

Usage

High-Intensity Discharge Headlamp/Left Low-Beam Headlamp/DRL Ignition Secondary AIR Pump (eAssist Only) Window/Mirror Defog

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Instrument Panel Fuse Block

The instrument panel fuse block is located in the instrument panel, on the driver side of the vehicle. To access the fuses, open the storage compartment. Press in on the sides of the compartment to release it from the instrument panel. Pull the door toward you to release it from the hinge.

Instrument Panel Fuse Block Number

Usage

Suspension Control Module/Universal Garage Door Opener/ESC Body Control Module 1
Body Control Module 5
Radio

Number

Usage

10

11

12

13

14

Radio Displays, Parking Assist, Infotainment, Module Tunnel Control Instrument Panel Power Outlet Console Power Outlet Body Control Module 3
Body Control Module 4
Body Control Module 8
Front Heater Ventilation Air Conditioning/Blower Right-Hand Power Front Seat Left-Hand Power Front Seat Diagnostic Link Connector

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Number

Usage

15
16

17

18

19
20

21
22

23

24

25
26

Airbag Steering Wheel Controls Heating Ventilation Air Conditioning Controller Service Fuse, Logistic Relay Memory Seats Automatic Occupant Sensing Instrument Cluster Discrete Logic Ignition Switch/PEPS Body Control Module 6
Body Control Module 2
OnStar Spare

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.

{ 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 0 169.

(Continued)

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Warning (Continued)

. 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 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.

(Continued)

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Warning (Continued)

. 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.

See Tire Pressure for High-Speed Operation 0 264 for inflation pressure adjustment for high-speed driving.

All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment all-season tires can be identified by the last two characters of this TPC code, which will be “MS.” Consider installing winter tires on the vehicle if frequent driving on snow or ice-covered roads is expected. All-season tires provide adequate performance for most winter driving conditions, but they may not offer the same level of traction or performance as winter tires on snow or ice-covered roads. See Winter Tires 0 256.

Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires 0 270. With winter tires, there may be decreased dry road traction, increased road noise, and shorter tread life. After changing to winter tires, be alert for changes in vehicle handling and braking. If using winter tires: . Use tires of the same brand and

tread type on all four wheel positions.

. Use only radial ply tires of the

same size, load range, and speed rating as the original equipment tires.

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Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y, and ZR speed rated tires. If winter tires with a lower speed rating are chosen, never exceed the tire's maximum speed capability.

Summer Tires This vehicle may come with high performance summer tires. These tires have a special tread and compound that are optimized for maximum dry and wet road performance. This special tread and compound will have decreased performance in cold climates, and on ice and snow. It is recommended that winter tires be installed on the vehicle if frequent driving at temperatures below approximately 5 °C (40 °F) or on ice or snow covered roads is expected. See Winter Tires 0 256.

Caution

High performance summer tires have rubber compounds that lose flexibility and may develop surface cracks in the tread area at temperatures below −7 °C (20 ° F). Always store high performance summer tires indoors and at temperatures above −7 °C (20 °F) when not in use. If the tires have been subjected to −7 °C (20 °F) or less, let them warm up in a heated space to at least 5 °C (40 °F) for 24 hours or more before being installed or driving a vehicle on which they are installed. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use. See Tire Inspection 0 268.

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

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(2) 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. (3) 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. DOT Tire Date of Manufacture : The last four digits of the TIN indicate the tire manufactured date. The first two digits represent the week (01–52) and the last two digits, the year. For example, the third

week of the year 2010 would have a four-digit DOT date of 0310. (4) 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. (5) Tire Ply Material : The type of cord and number of plies in the sidewall and under the tread. (6) 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 0 272.

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

Compact Spare Tire Example (1) Tire Ply Material : The type of cord and number of plies in the sidewall and under the tread. (2) Temporary Use Only : The compact spare tire or temporary use tire should not be driven at speeds over 80 km/h (50 mph).