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Appearance Care


Exterior Care . . . . . . . . . . . . . . . 10-90
Interior Care . . . . . . . . . . . . . . . . 10-95
Floor Mats . . . . . . . . . . . . . . . . . . 10-98


GMC Acadia/Acadia Denali Owner Manual - 2011


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California Proposition 65 Warning Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems, many fluids, and some component wear by-products contain and/or emit these chemicals.


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


Vehicle Care


10-3


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


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-4


Vehicle Care


Damage to vehicle components resulting from the installation or use of non‐GM certified parts, including control module modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts. GM Accessories are designed to complement and function with other systems on the vehicle. Your GM dealer can accessorize the vehicle using genuine GM Accessories. When you go to your GM dealer and ask for GM Accessories, you will know that GM-trained and supported service technicians will perform the work using genuine GM Accessories. Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3‑46.


Vehicle Checks


Doing Your Own Service Work


{ WARNING You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.


. Be sure you have sufficient


knowledge, experience, the proper replacement parts, and tools before attempting any vehicle maintenance task.


(Continued)


WARNING (Continued)


. Be sure to use the proper


nuts, bolts, and other fasteners. Metric and English fasteners can be easily confused. If the wrong fasteners are used, parts can later break or fall off. You could be hurt.


If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can.


GMC Acadia/Acadia Denali Owner Manual - 2011


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To order the proper service manual, see Service Publications Ordering Information on page 13‑15. This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle on page 3‑45. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records on page 11‑10.


Hood To open the hood, do the following:


1. Pull the hood release handle


with this symbol on it. It is located under the instrument panel on the driver's side of the vehicle.


2. At the front of the vehicle, pull up on the center of the hood, and push the secondary hood release to the right.


Vehicle Care


10-5


3. After you have partially


lifted the hood, gas struts will automatically take over to lift and hold the hood in the fully open position.


Before closing the hood, be sure all filler caps are on properly. Pull the hood down to close. Lower the hood until the lifting pressure of the strut is reduced. Then allow the hood to fall and latch into place under its own weight. Check to make sure the hood is closed. If the hood does not fully latch, gently push the hood down at the front and center of the hood until it is completely latched.


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-6


Vehicle Care


Engine Compartment Overview


GMC Acadia/Acadia Denali Owner Manual - 2011


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A. Radiator Pressure Cap. See Cooling System on page 10‑15.


B. Engine Coolant Recovery


Cap. See Cooling System on page 10‑15.


C. Remote Negative (−) Terminal.


See Jump Starting on page 10‑83.


H. Engine Cover on page 10‑7. I.


Engine Oil Dipstick. See “Checking Engine Oil” under Engine Oil on page 10‑8.


J. Automatic Transmission Fluid


Dipstick. See “Checking the Fluid Level” under Automatic Transmission Fluid on page 10‑13.


D. Engine Compartment Fuse


K. Brake Master Cylinder


Block on page 10‑33.


E. Remote Positive (+) Terminal.


See Jump Starting on page 10‑83.


Reservoir. See “Brake Fluid” under Brakes on page 10‑24.


L. Engine Air Cleaner/Filter on


page 10‑13.


F. Power Steering Reservoir and


M. Windshield Washer Fluid


Cap (under engine cover). See Power Steering Fluid on page 10‑22.


Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10‑23.


G. Engine Oil Fill Cap. See “When


to Add Engine Oil” under Engine Oil on page 10‑8.


Vehicle Care


10-7


Engine Cover


A. Oil Fill Cap B. Engine Cover To remove: 1. Remove the oil fill cap (A). 2. Raise the engine cover (B) to


release from the retainers. 3. Lift and remove the engine


cover.


4. Reverse Steps 1 through 3 to


reinstall engine cover.


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-8


Vehicle Care


Engine Oil To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: . Always use engine oil approved


to the proper specification and of the proper viscosity grade. See “Selecting the Right Engine Oil” in this section.


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


. Change the engine oil at the appropriate time. See Engine Oil Life System on page 10‑11.


. Always dispose of engine oil


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


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


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


2. Pull out the dipstick and clean


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


When to Add Engine Oil


If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for an explanation of what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 12‑2.


GMC Acadia/Acadia Denali Owner Manual - 2011


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Notice: Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If you find that you have an oil level above the operating range, i.e., the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged. You should drain out the excess oil or limit driving of the vehicle and seek a service professional to remove the excess amount of oil. See Engine Compartment Overview on page 10‑6 for the location of the engine oil fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through.


Selecting the Right Engine Oil Selecting the right engine oil depends on both the proper oil specification and viscosity grade:


Specification Use and ask for engine oils with the dexos™ certification mark. Oils meeting the requirements of the vehicle should have the dexos certification mark on the container. This certification mark indicates that the oil has been approved to the dexos specification.


This vehicle was filled at the factory with dexos‐approved engine oil.


Vehicle Care


10-9


Notice: Use only engine oil that is approved to the dexos specification or an equivalent engine oil of the appropriate viscosity grade. Engine oils approved to the dexos specification will show the dexos symbol on the container. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. If you are unsure whether the oil is approved to the dexos specification, ask your service provider. Use of Substitute Engine Oils if dexos is unavailable: In the event that dexos‐approved engine oil is not available at an oil change or for maintaining proper oil level, you may use substitute engine oil displaying the API Starburst symbol and of SAE 5W-30 viscosity grade.


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-10


Vehicle Care


Use of oils that do not meet the dexos specification, however, may result in reduced performance under certain circumstances.


Viscosity Grade SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity oils such as SAE 10W‐30, 10W‐40, or 20W-50.


Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29°C (−20°F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos. See “Specification” earlier in this section for more information.


GMC Acadia/Acadia Denali Owner Manual - 2011


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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.


Vehicle Care


10-11


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 engine revolutions and engine temperature, and not on mileage. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. Change the oil as soon as possible within the next 600 miles (1 000 km).


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-12


Vehicle Care


It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must be changed at least once a year and, at this time, the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 3,000 miles (5 000 km) 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: If the vehicle does not have Driver Information Center (DIC) buttons: 1. Turn the ignition to ON/RUN,


with the engine off. The vehicle must be in P (Park) to access this display. Press the trip odometer reset stem until OIL LIFE REMAINING displays.


2. Press and hold the trip odometer


reset stem until OIL LIFE REMAINING shows “100%.” Three chimes sound and the CHANGE ENGINE OIL SOON message goes off.


3. Turn the key to LOCK/OFF.


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


If the vehicle has Driver Information Center (DIC) buttons: 1. Turn the ignition to ON/RUN,


with the engine off.


2. Press the vehicle information


button until OIL LIFE REMAINING displays.


3. Press and hold the set/reset


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


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


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Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer and have it repaired as soon as possible. Change the fluid at the intervals listed in Scheduled Maintenance on page 11‑2, and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11‑7. Notice: Use of the incorrect automatic transmission fluid may damage the vehicle, and the damages may not be covered by the vehicle warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 11‑7.


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


Engine Air Cleaner/Filter


When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Scheduled Maintenance on page 11‑2 for more information. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. See Engine Compartment Overview on page 10‑6 for the location of the engine air cleaner/filter.


Vehicle Care


10-13


How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter (away from vehicle) to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter, do the following: 1. Remove the engine cover.


See Engine Cover on page 10‑7.


A. Ventilation Tube B. Sensor


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10-14


Vehicle Care


2. Disconnect the cover fitting from


4. Loosen the outlet duct


the ventilation tube (A).


clamp (A).


3. Disconnect the wiring harness connector from the sensor (B).


5. Loosen the six housing


cover (C) screws (B).


6. Remove the housing cover (C)


with outlet duct.


7. Remove the filter (D) and any


loose debris that may be found in the base (E). Inspect or replace the filter (D).


8. 9. Reverse Steps 2 through 6 to


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


10. Reinstall the engine cover.


See Engine Cover on page 10‑7.


A. Clamp B. Screws C. Housing Cover D. Filter E. Base


{ 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.


GMC Acadia/Acadia Denali Owner Manual - 2011


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


A. Engine Coolant Recovery Tank B. Radiator Pressure Cap C. Engine Cooling Fans


(Out of View)


{ WARNING


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


{ WARNING


Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. 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.


Vehicle Care


10-15


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. The 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 10‑19.


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10-16


Vehicle Care


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 could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant.


Notice: If extra inhibitors and/or additives are used in the vehicle's cooling system, the vehicle could be damaged. Use only the proper mixture of the engine coolant listed in this manual for the cooling system. See Recommended Fluids and Lubricants on page 11‑7 for more information. 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.


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.


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.


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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 recovery tank. If the coolant inside the coolant recovery tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the FULL COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant recovery tank, but be sure the cooling system is cool before this is done. See Cooling System on page 10‑15 for more information.


Vehicle Care


10-17


How to Add Coolant to the Recovery Tank


{ WARNING


You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.


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 coolant is needed, add the proper DEX-COOL coolant mixture at the coolant recovery tank.


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


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-18


Vehicle Care


How to Add Coolant to the Radiator


{ WARNING


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


{ WARNING Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the surge tank pressure cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the surge tank


(Continued)


WARNING (Continued)


pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool if you ever have to turn the pressure cap.


If coolant is needed, add the proper mixture directly to the radiator, but be sure the cooling system is cool before this is done.


1. Detach fasteners and lift


off the panel that covers the radiator cap.


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


3. Keep turning the pressure cap


slowly and remove it.


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


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8.


If the coolant level inside the radiator filler neck is low, add more of the proper DEX-COOL coolant mixture through the filler neck until the level is back up to the base of the filler neck. 9. Replace the pressure cap. Be sure to secure it tightly. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap.


Notice: If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.


Vehicle Care


10-19


Engine Overheating The vehicle has several indicators to warn of engine overheating. There is an engine coolant temperature gauge on the instrument panel cluster. See Engine Coolant Temperature Gauge on page 5‑14. The vehicle may also display an ENGINE OVERHEATED IDLE ENGINE and ENGINE OVERHEATED STOP ENGINE message in the Driver Information Center (DIC). See Engine Cooling System Messages on page 5‑39. You may decide not to lift the hood when this warning appears, but instead get service help right away. See Roadside Assistance Program (U.S. and Canada) on page 13‑8
or Roadside Assistance Program (Mexico) on page 13‑10.


5. Fill the coolant recovery tank to


the FULL COLD mark.


6. Reinstall the cap on the coolant


recovery tank but leave the radiator pressure cap off.


7. Start the engine and let it run until the upper radiator hose feels warm. Any time during this procedure, watch out for the engine cooling fans.


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-20


Vehicle Care


If you do decide to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced. Notice: Engine damage from running the engine without coolant is not covered by the warranty. Notice: If the engine catches fire while driving with no coolant, the vehicle can be badly damaged. The costly repairs would not be covered by the vehicle warranty. See Overheated Engine Protection Operating Mode on page 10‑22 for information on driving to a safe place in an emergency.


If Steam Is Coming from the Engine Compartment { WARNING


Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood.


(Continued)


WARNING (Continued)


If you keep driving when the vehicles engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine is cool. See Overheated Engine Protection Operating Mode on page 10‑22 for information on driving to a safe place in an emergency.


GMC Acadia/Acadia Denali Owner Manual - 2011


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If No Steam Is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day . Stops after high-speed driving Idles for long periods in traffic Tows a trailer


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


3.


temperature and to the highest fan speed. Open the windows as necessary. If in a traffic jam, shift to N (Neutral), otherwise, shift to the highest gear while driving — D (Drive) or L (Low). If the temperature overheat gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven.


Vehicle Care


10-21


Continue to drive the vehicle slow for about 10 minutes. Keep a safe vehicle distance from the car in front of you. If the warning does not come back on, continue to drive normally. If the warning continues, pull over, stop, and park the vehicle right away. If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down. Also, see “Overheated Engine Protection Operating Mode” next in this section.


GMC Acadia/Acadia Denali Owner Manual - 2011


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10-22


Vehicle Care


Overheated Engine Protection Operating Mode This emergency operating mode lets the vehicle be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, there is a significant loss in power and engine performance. The temperature gauge indicates an overheat condition exists. Driving extended distances and/or towing a trailer in the overheat protection mode should be avoided. Notice: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss, change the oil and reset the oil life system. See Engine Oil on page 10‑8.


Power Steering Fluid


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


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


engine compartment cool down.


2. Remove the engine cover.


See Engine Cover on page 10‑7.


3. Wipe the cap and the top of the


reservoir clean.


4. Unscrew the cap and wipe the


dipstick with a clean rag.


5. Replace the cap and completely


tighten it.


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


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


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What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11‑7. Always use the proper fluid. Notice: Use of the incorrect fluid may damage the vehicle and the damages may not be covered by the vehicle's warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants on page 11‑7.


Washer Fluid


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


Adding Washer Fluid When the windshield washer fluid reservoir is low, a WASHER FLUID LOW ADD FLUID message will be displayed on the Driver Information Center (DIC). See Washer Fluid Messages on page 5‑46 for more information.


Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 10‑6 for reservoir location.


Vehicle Care


10-23


Notice:


. When using concentrated


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


. Do not mix water with


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


. Fill the washer fluid tank


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


. Do not use engine coolant


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


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10-24


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.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (25,1)


Brake Fluid


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


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


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


. A fluid leak in the brake


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


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


Vehicle Care


10-25


{ WARNING


If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system.


When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light on page 5‑20.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (26,1)


10-26


Vehicle Care


What to Add Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11‑7. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir.


{ WARNING


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


Notice:


. Using the wrong fluid


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


. If brake fluid is spilled on the


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


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


{ DANGER


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.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (27,1)


Vehicle Storage


{ WARNING


Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 10‑83 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 It is not necessary to check the all–wheel drive lubricant levels. A fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer as soon as possible.


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.


Vehicle Care


10-27


2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 9‑30. 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.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (28,1)


10-28


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 9‑30. Be ready to apply the regular brake immediately if the vehicle begins to move.


3. With the engine off, turn the


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


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


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


Contact your dealer if service is required.


Park Brake and P (Park) Mechanism Check { WARNING


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


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


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


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (29,1)


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 Scheduled Maintenance on page 11‑2 for more information. Replacement blades come in different types and are removed in different ways. To replace the wiper blade assembly: 1. Pull the windshield wiper arm


away from the windshield.


2. Press the button in the middle of the wiper arm connector and pull the wiper blade away from the arm connector. Install the new wiper blade and make sure the wiper blade locks into place.


3.


For the proper size and type see Maintenance Replacement Parts on page 11‑9.


Vehicle Care


10-29


Backglass Wiper Blade To replace the backglass wiper blade: 1. Pull the wiper blade assembly


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


2. Rotate the wiper blade


assembly, hold the wiper arm in position, and push the blade away from the wiper arm. 3. Replace the wiper blade. 4. Return the wiper arm and blade assembly to the rest position on the glass.


Windshield Replacement If the vehicle is equipped with the Head‐Up display (HUD) system and the windshield needs to be replaced, get one that is designed for HUD or the HUD image may look out of focus.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (30,1)


10-30


Vehicle Care


Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if your 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 you take the vehicle to your dealer for service.


Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑31. 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 low beam 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.


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


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (31,1)


License Plate Lamp To replace one of these bulbs: 1. Remove the two screws holding each of the license plate lamps to the liftgate trim.


3. Turn the bulb socket


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


4. 5. Reverse steps 1 through 3 to


reinstall the license plate lamp.


Replacement Bulbs


Exterior Lamp


License Plate Lamp


Bulb


Number 194LL


For replacement bulbs not listed here, contact your dealer.


2. Turn and pull the license plate


lamp forward through the lift gate trim opening.


Vehicle Care


10-31


Electrical System


High Voltage Devices and Wiring


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


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (32,1)


10-32


Vehicle Care


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 the following in the vehicle: . Headlamp Wiring . Windshield Wiper Motor . Power Windows and Other


Power Accessories


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.


Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (33,1)


Vehicle Care


10-33


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


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


Lift the cover for access to the fuse/relay block. Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.


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


Fuses


Usage


A/C CLUTCH


ABS MTR


Air Conditioning Clutch Antilock Braking System (ABS) Motor


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (34,1)


10-34


Vehicle Care


Fuses


Usage


AFS


Adaptive Forward Lighting System Airbag System AUX POWER Auxiliary Power


AIRBAG


AUX


VAC PUMP


AWD


BATT 1
BATT 2
BATT 3
CIGAR


LIGHTER


ECM


ECM 1


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


Cigar Lighter


Engine Control Module Engine Control Module 1


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


Fuses FAN 1
FAN 2


Usage Cooling Fan 1
Cooling Fan 2


FOG LAMP Fog Lamps


FSCM


HORN


HTD MIR


HVAC BLWR


LT HI BEAM


LT LO BEAM


LT PRK


LT TRLR STOP/TRN


Fuel System Control Module Horn Heated Outside Rearview Mirror Heating, Ventilation and Air Conditioning Blower Left High-Beam Headlamp Left Low‐Beam Headlamp Left Parking Lamp Trailer Left Stoplamp and Turn Signal


ODD COILS Odd Injector Coils


Fuses


Usage


PCM IGN


Powertrain Control Module Ignition PWR L/GATE Power Liftgate


PWR


OUTLET


REAR


CAMERA


RR APO


Power Outlet


Rear Camera


Rear Accessory Power Outlet


RR DEFOG Rear Defogger


RR HVAC


RT HI BEAM


RT LO BEAM


RT PRK


RT TRLR STOP/TRN


Rear Climate Control System Right High‐Beam Headlamp Right Low‐Beam Headlamp Right Parking Lamp Trailer Right Stoplamp and Turn Signal


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (35,1)


Fuses


Usage


RVC SNSR Regulated Voltage


Control Sensor


S/ROOF/


SUNSHADE


Sunroof


SERVICE SPARE


Stop Lamps (China Only)


STRTR


TCM


TRANS TRLR


BCK/UP


Service Repair Spare Stop Lamps (China Only) Starter Transmission Control Module Transmission Trailer Back‐up Lamps


TRLR BRK Trailer Brake


TRLR


Trailer Parking Lamps


PRK LAMP TRLR PWR Trailer Power


WPR/WSW


Windshield Wiper/Washer


Vehicle Care


10-35


Usage


Relays


Usage


Relays


A/C


CMPRSR CLTCH


AUX


VAC PUMP


CRNK FAN 1
FAN 2
FAN 3


Air Conditioning Compressor Clutch


Auxiliary Vacuum Pump Switched Power Cooling Fan 1
Cooling Fan 2
Cooling Fan 3


HID/


HI BEAM


LO BEAM


FOG LAMP Fog Lamps High‐Beam Headlamps High Intensity Discharge (HID) Low‐Beam Headlamps Horn Ignition Main Trailer Left Stoplamp and Turn Signal Lamp


LT TRLR STOP/TRN


HORN


IGN


RR DEFOG


RT TRLR STOP/TRN


PRK LAMP Park Lamp Powertrain PWR/TRN Rear Window Defogger Trailer Right Stoplamp and Turn Signal Lamp Stop Lamps (China Only) Trailer Back-up Lamps Windshield Wiper Windshield Wiper High Speed


Stop Lamps (China Only)


BCK/UP


WPR HI


TRLR


WPR


Instrument Panel Fuse Block The instrument panel fuse block is located under the instrument panel on the passenger side of the vehicle. Pull down on the cover to access the fuse block.


GMC Acadia/Acadia Denali Owner Manual - 2011


Black plate (36,1)


10-36


Vehicle Care


Fuses AIRBAG


AMP BCK/


UP/STOP


BCM


CNSTR/ VENT CTSY DR/LCK


DRL


DRL 2


DSPLY


FRT/WSW


HTD/


COOL SEAT


Fuse Side


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


Usage


Fuses


Usage


Airbag Amplifier Back‐up Lamp/Stoplamp Body Control Module


Canister Vent


Courtesy Door Locks Daytime Running Lamps GMC HID Only (If Equipped)/ Rear Fog Lamps-China Only Display Front Windshield Washer Heated/ Cooling Seats


HVAC


Heating, Ventilation and Air Conditioning Inadvertent PWR/LED Power LED

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