2012 Buick Regal Owners Manual

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

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Vehicle Care

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. See Engine Oil Messages on page 5‑32. 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.

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Vehicle Care

10-15

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 on page 13‑12. Change the fluid and filter at the intervals listed in Maintenance Schedule on page 11‑3, and be sure to use the fluid listed in Recommended Fluids and Lubricants on page 11‑12.

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. Turn the ignition to ON/RUN with

the engine off.

2. Press the DIC MENU button on the turn signal lever to enter the Vehicle Information Menu. Use the thumbwheel to scroll through the menu items until you reach REMAINING OIL LIFE.

3. Press the SET/CLR button to

reset the oil life at 100%.

4. Turn the ignition to LOCK/OFF.

The system is reset when the CHANGE ENGINE OIL SOON message is off and the REMAINING OIL LIFE 100% message is displayed. If the CHANGE ENGINE OIL 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.

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Vehicle Care

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 on page 11‑12
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 either DOT 3 or DOT 4
brake fluid as indicated on the reservoir cap. See Engine Compartment Overview on page 10‑6 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 on page 10‑6 for the location of the engine air cleaner/filter.

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When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Maintenance Schedule on page 11‑3 for more information. If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required.

Vehicle Care

10-17

To inspect or replace the engine air cleaner/filter:

2. Disconnect the outlet duct by

loosening the air duct clamp (B).

2.0L L4 Engine 1. Open the hood. See Hood on

page 10‑5.

3. Disconnect the electrical

connector (A).

4. Remove the screws (C) on top

of the engine air cleaner/filter housing.

5. Lift the filter cover housing away

from the engine. 6. Pull out the filter. 7.

Inspect or replace the engine air cleaner/filter.

8. Reverse Steps 2 through 4 to

reinstall the filter cover housing.

A. Electrical Connector B. Air Duct Clamp C. Screws (5)

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Vehicle Care

2.4L L4 Engine without eAssist 1. Open the hood. See Hood on

page 10‑5.

A. Screws (6) B. Air Duct Clamp C. Electrical Connector

2. Disconnect the outlet duct by

loosening the air duct clamp (B).

3. Disconnect the electrical

connector (C).

4. Remove the screws (A) on top of

the engine air cleaner/filter housing.

5. Lift the filter cover housing away

from the engine. 6. Pull out the filter. 7.

Inspect or replace the engine air cleaner/filter.

8. Reverse Steps 2 through 4 to

reinstall the filter cover housing.

2.4L L4 Engine with eAssist 1. Open the hood. See Hood on

page 10‑5.

2. Remove the five screws on top

of the engine air cleaner/filter housing.

3. Lift the filter cover housing away from the engine air cleaner/filter housing.

4. Pull out the filter.

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Vehicle Care

10-19

5.

Inspect or replace the engine air cleaner/filter.

6. Lower the filter cover housing

7.

toward the engine. Install the five screws on the top of the housing to lock the cover in place.

{ WARNING

Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.

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

Cooling System The cooling system allows the engine to maintain the correct working temperature. When it is safe to lift the hood:

2.0L L4 Engine

A. Electric Engine Cooling Fans

(Out of View)

B. Coolant Surge Tank and

Pressure Cap

2.4L L4 Engine without eAssist

A. Electric Engine Cooling Fans

(Out of View)

B. Coolant Surge Tank and

Pressure Cap

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Vehicle Care

{ WARNING

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

Notice: Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner, at 50 000 km (30,000 mi) or 24 months, whichever occurs first. 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. 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 on page 10‑24. 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.

(Continued)

2.4L L4 Engine with eAssist

A. Engine Cooling Fans

(Out of View)

B. Coolant Surge Tank and

Pressure Cap

{ WARNING

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

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2.4L Engine with eAssist Use a 50/50 mixture of deionized water and DEX-COOL coolant. If using this mixture, nothing else needs to be added. These mixtures: . Give freezing protection down to

−37°C (−34°F), outside temperature.

. Give boiling protection up to

129°C (265°F), engine temperature.

. Protect against rust and

corrosion.

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

temperature.

Vehicle Care

10-21

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

WARNING (Continued)

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 could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant for non-eAssist engine(s). Use a 50/50 mixture of deionized water and DEX-COOL coolant for eAssist engine(s).

2.0L Engine and 2.4L Engine without eAssist Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant. If using this mixture, nothing else needs to be added.

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Vehicle Care

Checking Coolant The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the mark pointed to, add:

2.0L Engine and 2.4L Engine without eAssist A 50/50 mixture of clean drinkable water and DEX-COOL coolant.

2.4L Engine with eAssist A 50/50 mixture of deionized 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 Notice: 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 or deionized 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. They are under pressure, and if you turn the coolant surge tank pressure cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the coolant surge tank pressure cap, is hot. Wait for the cooling system and coolant surge tank pressure cap to cool if you ever have to turn the pressure cap.

{ 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.

(Continued)

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WARNING (Continued)

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 could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant for non-eAssist engine(s). Use a 50/50 mixture of deionized water and DEX-COOL coolant for eAssist engine(s).

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

Vehicle Care

10-23

{ 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.

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.

2.0L Engine Shown, 2.4L Engines (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.

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

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Vehicle Care

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. Be sure the pressure cap is hand-tight.

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
through 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

2.0L Engine and 2.4L Engine without eAssist The vehicle has an engine coolant temperature warning light and an engine coolant temperature gauge on the instrument panel to warn of engine overheating. See Engine Coolant Temperature Warning Light on page 5‑22 and Engine Coolant Temperature Gauge on page 5‑13.

2.4L Engine with eAssist The vehicle has an engine coolant temperature warning light on the instrument panel to warn of engine overheating. See Engine Coolant Temperature Warning Light on page 5‑22.

If it is decided not to lift the hood when this warning appears, but instead get service help right away, see Roadside Assistance Program on page 13‑6. 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. Notice: Engine damage from running the engine without coolant is not covered by the warranty.

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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 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.

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

3.

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

Vehicle Care

10-25

2.0L Engine and 2.4L Engine without eAssist 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.

2.4L Engine with eAssist If 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.

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Vehicle Care

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.

Power Steering Fluid (2.0L and 2.4L without eAssist )

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 a leak is suspected in the system, or an unusual noise is heard. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. How to Check Power Steering Fluid Notice: Extremely small amounts of contamination can cause steering system damage and cause it to not work properly. Do not allow contaminants to contact the fluid side of the reservoir cap/dipstick or from entering the reservoir.

To check the power steering fluid:

1. Turn the key off and let the

engine compartment cool down. 2. Wipe the cap and the top of the

reservoir clean.

3. Unscrew the cap and wipe the

dipstick with a clean rag.

4. Replace the cap and completely

tighten it.

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

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The fluid level should be between the MIN (Minimum) and MAX (Maximum) marks when the engine is cold, and at the MAX mark when the engine is hot. If the fluid is at the MIN mark when the engine is cold or hot, power steering fluid should be added. If the fluid is at or below the MIN mark on the dipstick, add just enough fluid to bring the level between the MIN and MAX marks. 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.

Power Steering Fluid (2.4L with eAssist) The vehicle has electric power steering and does not use power steering fluid.

Washer Fluid

Notice

Vehicle Care

10-27

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 on page 10‑6 for reservoir location.

. When using concentrated

washer fluid, follow the manufacturer's instructions for adding water.

. Do not mix water with

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

. Fill the washer fluid tank

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

. Do not use engine coolant

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

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10-28

Vehicle Care

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

{ WARNING

The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced.

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

Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to torque specifications in Capacities and Specifications on page 12‑2. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required.

Brake Adjustment Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. The vehicle was designed and tested with top-quality brake parts. When parts of the braking system are replaced, be sure to get new, approved replacement parts. 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.

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Brake Fluid

The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview on page 10‑6 for the location of the reservoir. The reservoir is filled with with either DOT 3 or DOT 4
brake fluid as indicated on the reservoir cap. 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/clutch

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

Do not top off the brake/clutch 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/clutch 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/clutch hydraulic system.

Vehicle Care

10-29

Checking Brake Fluid The brake/clutch fluid can be checked without taking off the cap by looking at the brake/clutch fluid reservoir. The fluid level should be above MIN. If it is not, have the brake/clutch hydraulic system checked to see if there is a leak. After work is done on the brake/clutch hydraulic system, make sure the level is above MIN but not over the MAX mark. When the brake/clutch fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light on page 5‑18.

What to Add If the vehicle has DOT 3 brake fluid, as indicated on the reservoir cap, use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11‑12.

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10-30

Vehicle Care

If the vehicle has DOT 4 brake fluid, as indicated on the reservoir cap, use only new DOT 4 brake fluid from a sealed container. It is recommended that the brake/clutch hydraulic system be flushed and refilled with new DOT 4 fluid at a regular maintenance service every two years. See Maintenance Schedule on page 11‑3 and Recommended Fluids and Lubricants on page 11‑12. Always clean the brake/clutch 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/clutch hydraulic system, the brakes might not work well. This could cause a crash. Always use the proper brake/clutch fluid.

Notice

. Using the wrong fluid can

badly damage brake/clutch 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.

Battery 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.

{ 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.

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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-board with eAssist Only) on page 10‑94 or Jump Starting (with or without eAssist) on page 10‑95
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.

Starter Switch Check

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

1. Before starting this check, be

sure there is enough room around the vehicle.

2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 9‑38. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

Vehicle Care

10-31

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.

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Vehicle Care

Automatic Transmission Shift Lock Control Function Check

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

1. Before starting this check, be

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

2. Firmly apply the parking brake.

See Parking Brake on page 9‑38. Be ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the

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

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

For automatic transmission vehicles, 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.

For manual transmission vehicles, 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.

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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. See Maintenance Schedule on page 11‑3 for more information. It is a good idea to clean or replace the wiper blade assembly on a regular basis or when worn. For proper windshield wiper blade length and type, see Maintenance Replacement Parts on page 11‑14. Notice: 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.

Vehicle Care

10-33

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 through 3 for

wiper blade replacement.

Buick Regal Owner Manual - 2012

Black plate (34,1)

10-34

Vehicle Care

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

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑38. For any bulb‐changing procedure not listed in this section, contact your dealer.

Halogen Bulbs

{ WARNING

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

Headlamps, Front Turn Signal and Parking Lamps

Base Headlamp Assembly (Passenger Side Shown, Driver Side Similar) A. High‐Beam Headlamp B. Turn Signal Lamp C. Low‐Beam Headlamp/Daytime

Running Lamp (DRL)

D. Parking Lamp E. Sidemarker Lamp

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Low-Beam Headlamps/Daytime Running Lamps (DRL), High-Beam Headlamps (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 outside cap for the low-beam headlamp/DRL bulb replacement from the back of the headlamp assembly.

3. Remove the inside cap for the

high-beam headlamp bulb replacement from the back of the headlamp assembly. 4. Disconnect the electrical

connector.

Vehicle Care

10-35

5. Remove the bulb socket from

the headlamp assembly.

6. Replace the bulb in the bulb

7.

socket. Install the bulb socket in the headlamp assembly.

8. Reverse Steps 1 through 4 to

reinstall the outside or inside cap on the headlamp assembly.

High/Low‐Beam Headlamps (Uplevel) The high/low‐beam headlamps on the uplevel headlamp system are High Intensity Discharge (HID) and should be replaced at the dealer.

Uplevel Headlamp Assembly (Passenger Side Shown, Driver Side Similar) A. High/Low‐Beam Headlamp ‐

To be replaced at the dealer only

B. Turn Signal Lamp

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10-36

Vehicle Care

Front Turn Signal/Parking/ Sidemarker Lamps (Base and Uplevel) To replace the front turn signal, parking lamp, or sidemarker lamp: 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 bulb socket from

the headlamp assembly by turning it counterclockwise. 3. Remove the bulb from the

socket.

4. Replace the bulb in the bulb

5.

socket. Install the bulb socket in the headlamp assembly by turning it clockwise.

6. For the driver side, reinstall the

windshield washer bottle filler neck by firmly pushing it straight into the bottle. Ensure that the filler neck clip engages into the underhood electrical center retainer.

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

4.

5. Reconnect the electrical

connector to the bulb assembly.

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

A. Taillamp/Sidemarker Lamp B. Taillamp C. Stop/Turn Signal Lamp D. Back-up Lamp

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

Release on page 1‑5.

2. Remove the taillamp assembly

access panel.

3. Remove the two nuts that

secure the taillamp assembly. 4. Remove the taillamp assembly and detach the wiring harness connector.

Vehicle Care

10-37

License Plate Lamp To replace one of these bulbs:

A. Back-up Lamp B. Taillamp C. Stop/Turn Signal Lamp D. Taillamp/Sidemarker Lamp

5. Turn the bulb socket

counterclockwise to remove it. 6. Pull the bulb from the socket. 7. 8. Turn the bulb socket clockwise

Install a new bulb.

to install it.

9. Reverse Steps 2 through 4 to

reinstall the taillamp assembly.

Passenger Side Shown,

Driver Side Similar

1. Push the release tab (A) toward

the lamp assembly.

2. Pull the lamp assembly down to

remove.

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10-38

Vehicle Care

Replacement Bulbs

Electrical System

Exterior Lamp

Back-up Lamp Fog Lamp Front Turn Signal Lamp Front Sidemarker Lamp (Base) High‐Beam Headlamp (Base) License Plate Lamp Low‐Beam Headlamp/Daytime Running Lamp (DRL) Stoplamp/Turn Signal Lamp Taillamp/ Sidemarker Lamp

Bulb

Number 3157 K

H10

3457 NAK

194NA

H7

194

H11

3157 K

3157 K

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. Do not probe, tamper with, cut, or modify high voltage cable or wiring.

A. Bulb Socket B. Bulb C. Lamp Assembly

3. Turn the bulb socket (A)

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

4. Pull the bulb (B) straight out of

the bulb socket.

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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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.

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.

Vehicle Care

10-39

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 on page 10‑40 and Instrument Panel Fuse Block on page 10‑43.

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10-40

Vehicle Care

Engine Compartment Fuse Block

To remove the fuse block cover, press the three retaining clips on the cover and lift it straight up. Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.

Engine Compartment Fuse Block

Fuse

Number

Usage

Fuse

Number

Usage

Transmission Control Module Engine Control Module

Not Used Not Used

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Fuse

Number

Usage

Fuse

Number

Usage

Fuse

Number

Usage

Vehicle Care

10-41

Ignition, Transmission Control Module, Engine Control Module Windshield Wiper Not Used Fuel Injection, Ignition System Even Fuel Injection, Ignition System Odd Engine Control Module Oxygen Sensor Starter Fuel System Control Module Secondary Air Induction

10

11
12

13

14

15
16
17
18
19
20

21

22

23

24

25

26

27

Not Used Vacuum Pump Ignition, Airbag Not Used Not Used Not Used Rear Power Windows Antilock Brake System Valve Variable Effort Steering Front Power Windows Power Outlets Antilock Brake System Pump Electric Parking Brake

28

29

30

31

32

33
34
35
36

37

38

39

Heated Rear Window Left‐Hand Seat Lumbar Right‐Hand Seat Lumbar Not Used Body Control Module 6
Heated Front Seats Sunroof Infotainment System Not Used Right‐Hand High‐Beam Headlamp Left‐Hand High‐Beam Headlamp Not Used

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10-42

Vehicle Care

Fuse

Number

Usage

Fuse

Number

Usage

Fuse

Number

Usage

40
41
42
43

44

45

46

47
48

49

50

Not Used Vacuum Pump Radiator Fan 1
Not Used Headlamp Washer System (if equipped) Radiator Fan 2
Terminal 87, Main Relay Oxygen Sensor Fog Lamps Right‐Hand Low Beam, High Intensity Discharge Headlamp Left‐Hand Low Beam, High Intensity Discharge Headlamp

51

52

53

54
55
56
57
58

59

60
61

62

63
64

Horn Motor Indicator Lamp Ignition, Inside Rearview Mirror Not Used Power Windows Windshield Washer Not Used Not Used Secondary Air Induction Heated Mirrors Not Used Canister Vent Solenoid Not Used Not Used

65
66

67

68
69
70
71

Not Used Not Used Fuel System Control Module Not Used Battery Sensor Not Used Not Used

Relay

Number

Usage

K1
K2
K3
K4

K5

K6

Not Used Starter Cooling Fan (LHU) Front Wiper (Step 2) Front Wiper (Step 1, Interval) SAI Valve

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Relay

Number

Usage

Instrument Panel Fuse Block

Vehicle Care

10-43

K7
K8

K9

K10
K11
K12

K13

K14

K15

K16

K17

Main Relay Not Used Cooling Fan (LAF/LHU) Cooling Fan (LAF) Not Used Cooling Fan (LHU) Cooling Fan (LAF/LHU) High Intensity Discharge Lamps Ignition Secondary AIR Pump Window/Mirror Defog

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 Body Control Module 7
Body Control Module 5
Radio

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10-44

Vehicle Care

Number

Usage

Number

Usage

Number

Radio Displays, Park Assist, Infotainment, Module Tunnel Control Power Outlet 1
Power Outlet 2
Body Control Module 3
Body Control Module 4
Body Control Module 8
Front Heater Ventilation Air Conditioning/Blower Right‐Hand Power Front Seat

10

11

12

22

23

24

25
26

13

14

15
16

17

18

19

20

21

Left‐Hand Power Front Seat Diagnostic Link Connector Airbag Trunk Release Heating Ventilation Air Conditioning Controller Service Fuse, Logistic Relay Not Used Automatic Occupant Sensing Instrument Panel Cluster

Usage Discrete Logic Ignition Switch Body Control Module 1
Body Control Module 2
OnStar Power Outlet, Trunk

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Wheels and Tires