2010 Cadillac Escalade Owners Manual

cause you to lose control and crash. Also, overloading can shorten the life of the vehicle.

Your warranty does not cover parts or components that fail because of overloading. The label will help you decide how much cargo and installed equipment your truck can carry. Using heavier suspension components to get added durability might not change your weight ratings. Ask your dealer to help you load your vehicle the right way.

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If you put things inside your vehicle — like suitcases, tools, packages, or anything else — they will go as fast as the vehicle goes. If you have to stop or turn quickly, or if there is a crash, they will keep going.

{ WARNING:

Things you put inside your vehicle can strike and injure people in a sudden stop or turn, or in a crash. . Put things in the cargo area of your

vehicle. Try to spread the weight evenly.

. Never stack heavier things, like

suitcases, inside the vehicle so that some of them are above the tops of the seats. . Do not leave an unsecured child restraint

in your vehicle.

. When you carry something inside the vehicle, secure it whenever you can.

. Do not leave a seat folded down unless

you need to.

There is also important loading information for off-road driving in this manual. See “Loading Your Vehicle for Off-Road Driving” under Off-Road Driving on page 6‑13. Add-On Equipment When you carry removable items, you may need to put a limit on how many people you can carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment. Notice : Overloading the vehicle may cause damage. Repairs would not be covered by the vehicle warranty. Do not overload the vehicle. Remember not to exceed the Gross Axle Weight Rating (GAWR) of the front or rear axle. Automatic Level Control The automatic level control rear suspension comes as a part of the Road Sensing Suspension. See Road Sensing Suspension on page 6‑9 . This type of level control is fully automatic and will provide a better leveled riding position as well as better handling under a variety of passenger and loading conditions. An air compressor connected to the rear shocks will raise or lower the rear of the vehicle to maintain proper vehicle height.

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The system is activated when the ignition key is turned to RUN and will automatically adjust vehicle height thereafter. The system may exhaust (lower vehicle height) for up to 10 minutes after the ignition key has been turned to LOCK. You may hear the air compressor operating when the height is being adjusted. If a weight-distributing hitch is being used, it is recommended to allow the shocks to inflate, thereby leveling the vehicle prior to adjusting the height. See “Weight distributing Hitches and Weight Carrying Hitches” under Towing a Trailer on page 6‑42. Towing

Towing Your Vehicle To avoid damage, the disabled vehicle should be towed with all four wheels off the ground. Consult your dealer or a professional towing service if the disabled vehicle must be towed. See Roadside Service on page 9‑8. To tow the vehicle behind another vehicle for recreational purposes (such as behind a motorhome), see “Recreational Vehicle Towing” following.

Recreational Vehicle Towing If the vehicle has a two–mode hybrid engine, see the Two–mode Hybrid manual for more information. Recreational vehicle towing means towing the vehicle behind another vehicle – such as behind a motorhome. The two most common types of recreational vehicle towing are known as “dinghy towing” (towing the vehicle with all four wheels on the ground) and “dolly towing” (towing the vehicle with two wheels on the ground and two wheels up on a device known as a “dolly”). Here are some important things to consider before recreational vehicle towing:

. What is the towing capacity of the towing vehicle?

Be sure to read the tow vehicle manufacturer's recommendations.

. What is the distance that will be travelled? Some

vehicles have restrictions on how far and how long they can tow. Is the proper towing equipment going to be used? See your dealer or trailering professional for additional advice and equipment recommendations. Is the vehicle ready to be towed? Just as preparing the vehicle for a long trip, make sure the vehicle is prepared to be towed. See Before Leaving on a Long Trip on page 6‑26.

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All-Wheel-Drive Vehicles Dinghy and Dolly Towing

Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground, or even with only two of its wheels on the ground, will damage drivetrain components. Do not tow an all-wheel-drive vehicle with any of its wheels on the ground. All-wheel-drive vehicles are not designed to be towed with any wheels on the ground. If the vehicle must be towed, see Towing Your Vehicle previously.

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Two-Wheel-Drive Vehicles Dinghy Towing

To dolly tow a two‐wheel‐drive vehicle, the vehicle must be towed with the rear wheels on the dolly. See “Dolly Towing (Rear Wheels Off the Ground)” following. Dolly Towing (Front Wheels Off the Ground)

Notice: If a two-wheel-drive vehicle is towed with all four wheels on the ground, the transmission could be damaged. The repairs would not be covered by the vehicle warranty. Do not tow a two-wheel-drive vehicle with all four wheels on the ground. Two-wheel-drive vehicles should not be towed with all four wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed.

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Notice: If a two-wheel-drive vehicle is towed with the rear wheels on the ground, the transmission could be damaged. The repairs would not be covered by the vehicle warranty. Never tow the vehicle with the rear wheels on the ground.

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Two-wheel-drive vehicles should not be towed with the rear wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. Dolly Towing (Rear Wheels Off the Ground)

Use the following procedure to dinghy tow a two-wheel-drive vehicle from the rear:

1. Attach the dolly to the tow vehicle following the

dolly manufacturer's instructions.

2. Drive the rear wheels onto the dolly. 3. Firmly set the parking brake. See Parking Brake

on page 3‑38 .

4. Put the transmission in P (Park). 5. Secure the vehicle to the dolly following the

manufacturer's instructions.

6. Use an adequate clamping device designed for

towing to ensure that the front wheels are locked into the straight position.

7. Turn the ignition to LOCK/OFF. Level Control Automatic Level Control The automatic level control rear suspension is available on light‐duty vehicles and comes as a part of the Autoride® suspension, if equipped. This type of level control is fully automatic and will provide a better leveled riding position as well as better handling under a variety of passenger and loading conditions. An air compressor connected to the rear shocks will raise or lower the rear of the vehicle to maintain proper vehicle height. The system is activated when the ignition key is turned to ON/RUN and will automatically adjust vehicle height thereafter. The system may exhaust (lower vehicle height) for up to ten minutes after the ignition key has been turned off. You may hear the air compressor operating when the height is being adjusted.

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If a weight‐distributing hitch is being used, it is recommended to allow the shocks to inflate, thereby leveling the vehicle prior to adjusting the hitch. Autoride® With this feature, improved vehicle ride and handling is provided under a variety of passenger and loading conditions. The system is fully automatic and uses a computer controller to continuously monitor vehicle speed, wheel to body position, lift/dive and steering position of the vehicle. The controller then sends signals to each shock absorber to independently adjust the damping level to provide the optimum vehicle ride. Autoride also interacts with the tow/haul mode that, when activated, will provide additional control of the shock absorbers. This additional control results in better ride and handling characteristics when the vehicle is loaded or towing a trailer. See “Tow/Haul Mode” under Towing a Trailer on page 6‑42 for more information. Towing a Trailer If the vehicle has a two–mode hybrid engine, see the Two–mode Hybrid manual for more information. Do not tow a trailer during break‐in. See New Vehicle Break-In on page 3‑26 for more information.

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{ WARNING:

The driver can lose control when pulling a trailer if the correct equipment is not used or the vehicle is not driven properly. For example, if the trailer is too heavy, the brakes may not work well — or even at all. The driver and passengers could be seriously injured. The vehicle may also be damaged; the resulting repairs would not be covered by the vehicle warranty. Pull a trailer only if all the steps in this section have been followed. Ask your dealer for advice and information about towing a trailer with the vehicle.

Notice: Pulling a trailer improperly can damage the vehicle and result in costly repairs not covered by the vehicle warranty. To pull a trailer correctly, follow the advice in this section and see your dealer for important information about towing a trailer with the vehicle. To identify the trailering capacity of the vehicle, read the information in “Weight of the Trailer” that appears later in this section.

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Trailering is different than just driving the vehicle by itself. Trailering means changes in handling, acceleration, braking, durability and fuel economy. Successful, safe trailering takes correct equipment, and it has to be used properly. The following information has many time-tested, important trailering tips and safety rules. Many of these are important for your safety and that of your passengers. So please read this section carefully before pulling a trailer. Pulling A Trailer Here are some important points:

There are many different laws, including speed limit restrictions, having to do with trailering. Make sure the rig will be legal, not only where you live but also where you will be driving. A good source for this information can be state or provincial police.

Then, during the first 500 miles (800 km) that a trailer is towed, do not drive over 50 mph (80 km/h) and do not make starts at full throttle. This helps the engine and other parts of the vehicle wear in at the heavier loads.

. Vehicles can tow in D (Drive). Shift the

transmission to a lower gear if the transmission shifts too often under heavy loads and/or hilly conditions. If the vehicle has the Side Blind Zone Alert (SBZA) system and it doesn't seem to be working properly while pulling a trailer, turn the system off. See Side Blind Zone Alert (SBZA) on page 3‑48 for more information.

Important considerations that have to do with weight:

The weight of the trailer The weight of the trailer tongue The weight on the vehicle's tires

. Consider using a sway control. See “Hitches” later

. And the weight of the trailering combination

in this section.

. Do not tow a trailer at all during the first 500 miles

(800 km) the new vehicle is driven. The engine, axle or other parts could be damaged.

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Weight of the Trailer How heavy can a trailer safely be? It depends on how the rig is used. Speed, altitude, road grades, outside temperature and how much the vehicle is used to pull a trailer are all important. It can depend on any special equipment on the vehicle, and the amount of tongue weight the vehicle can carry. See “Weight of the Trailer Tongue” later in this section for more information.

Trailer weight rating (TWR) is calculated assuming the tow vehicle has only the driver but all required trailering equipment. Weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the trailer weight rating. Use the following chart to determine how much the vehicle can weigh, based upon the vehicle model and options.

Axle Ratio

Maximum Trailer Weight

Vehicle Escalade 2WD 6.2L V8
Escalade AWD 6.2L V8
Escalade ESV 2WD 6.2L V8
Escalade ESV AWD 6.2L V8
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be exceeded.

8,300 lbs (3 765 kg) 8,100 lbs (3 674 kg) 7,600 lbs (3 447 kg) 7,800 lbs (3 538 kg)

14,000 lbs (6 350 kg) 14,000 lbs (6 350 kg) 14,000 lbs (6 350 kg) 14,000 lbs (6 350 kg)

3.42
3.42
3.42
3.42

GCWR*

Ask your dealer for trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices on page 9‑6 for more information.

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Weight of the Trailer Tongue The tongue load (A) of any trailer is very important because it is also part of the vehicle weight. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo carried in it, and the people who will be riding in the vehicle as well as trailer tongue weight. Vehicle options, equipment, passengers and cargo in the vehicle reduce the amount of tongue weight the vehicle can carry, which will also reduce the trailer weight the vehicle can tow. See Loading the Vehicle on page 6‑32 for more information about the vehicle's maximum load capacity.

Trailer tongue weight (A) should be 10 percent to 15 percent and fifth wheel or gooseneck kingpin weight should be 15 to 25 percent of the loaded trailer weight up to the maximums for vehicle series and hitch type shown below:

Hitch Type

Maximum

Vehicle Series 1500
1500

Tongue Weight 272 kg (600 lbs) Weight Distributing 499 kg (1,100 lbs)

Weight Carrying

Do not exceed the maximum allowable tongue weight for the vehicle. Choose the shortest hitch extension that will position the hitch ball closest to the vehicle. This will help reduce the effect of trailer tongue weight on the rear axle.

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Trailering may be limited by the vehicle's ability to carry tongue weight. Tongue or kingpin weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross Axle Weight Rating). See “Total Weight on the Vehicle's Tires” later in this section for more information. After loading the trailer, weigh the trailer and then the tongue, separately, to see if the weights are proper. If they are not, adjustments might be made by moving some items around in the trailer. Total Weight on the Vehicle's Tires Be sure the vehicle's tires are inflated to the inflation pressures found on the Certification label on the driver door or see Loading the Vehicle on page 6‑32 for more information. Make sure not to exceed the GVWR limit for the vehicle, or the RGAWR, with the tow vehicle and trailer fully loaded for the trip including the weight of the trailer tongue. If using a weight distributing hitch, make sure not to exceed the RGAWR before applying the weight distribution spring bars.

Weight of the Trailering Combination It is important that the combination of the tow vehicle and trailer does not exceed any of its weight ratings — GCWR, GVWR, RGAWR, Trailer Weight Rating or Tongue Weight. The only way to be sure it is not exceeding any of these ratings is to weigh the tow vehicle and trailer combination, fully loaded for the trip, getting individual weights for each of these items. Hitches The correct hitch equipment helps maintain combination control. Most small-to-medium trailers can be towed with a weight carrying hitch which simply features a coupler latched to the hitch ball. Larger trailers may require a weight distributing hitch that uses spring bars to distribute the trailer tongue weight among the two vehicle and trailer axles. See “Weight of the Trailer Tongue” earlier in this section for rating limits with various hitch types. If a step-bumper hitch will be used, the bumper could be damaged in sharp turns. Make sure there is ample room when turning to avoid contact between the trailer and the bumper. Consider using sway controls with any trailer. Ask a trailering professional about sway controls or refer to the trailer manufacturer's recommendations and instructions.

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Weight‐Distributing Hitch Adjustment

Hitch Cover The vehicle may have a hitch cover. To remove the hitch cover:

A: Body to Ground Distance B: Front of Vehicle When using a weight-distributing hitch, the spring bars should be adjusted so the distance (A) is the same after coupling the trailer to the tow vehicle and adjusting the hitch.

1. Turn the fasteners on the lower tabs 90 degrees

counterclockwise.

2. Lift the lower edge of the cover about 45 degrees. 3. Pull the cover downward to disengage the upper

attachments.

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To reinstall the hitch cover:

1. Hold the cover at a 45 degree angle to the vehicle and push the upper tabs in the hitch cover into the chrome slots in the fascia.

2. Move the bottom of the cover forward until the

lower tabs line up with the lower fascia slots.

3. Snap the hitch cover into place by pushing the

upper corners forward.

4. Turn the fasteners on the lower tabs 90 degrees

clockwise to lock the cover in place.

Safety Chains Always attach chains between the vehicle and the trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the hitch manufacturer or by the trailer manufacturer. If the trailer being towed weighs up to 5,000 lbs (2 271 kg) with a factory-installed step bumper, safety chains may be attached to the attaching points on the bumper, otherwise, safety chains should be attached to holes on the trailer hitch platform. Always leave just enough slack so the combination can turn. Never allow safety chains to drag on the ground.

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Tow/Haul Mode

Pressing this button at the end of the shift lever turns on and off the tow/haul mode.

This indicator light on the instrument panel cluster comes on when the tow/ haul mode is on.

Tow/Haul is a feature that assists when pulling a heavy trailer or a large or heavy load. See Tow/Haul Mode on page 3‑36 for more information. Tow/Haul is designed to be most effective when the vehicle and trailer combined weight is at least 75 percent of the vehicle's Gross Combined Weight Rating (GCWR). See “Weight of the Trailer” earlier in the section. Tow/Haul is most useful under the following driving conditions:

. When pulling a heavy trailer or a large or heavy

load through rolling terrain.

. When pulling a heavy trailer or a large or heavy

load in stop and go traffic.

. When pulling a heavy trailer or a large or heavy

load in busy parking lots where improved low speed control of the vehicle is desired.

Operating the vehicle in Tow/Haul when lightly loaded or with no trailer at all will not cause damage. However, there is no benefit to the selection of Tow/Haul when the vehicle is unloaded. Such a selection when unloaded may result in unpleasant engine and transmission driving characteristics and reduced fuel economy. Tow/Haul is recommended only when pulling a heavy trailer or a large or heavy load.

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Trailer Brakes A loaded trailer that weighs more than 2,000 lbs (900 kg) needs to have its own brake system that is adequate for the weight of the trailer. Be sure to read and follow the instructions for the trailer brakes so they are installed, adjusted and maintained properly. Since the vehicle is equipped with StabiliTrak®, the trailer brakes cannot tap into the vehicle's hydraulic system. Driving with a Trailer

{ WARNING:

When towing a trailer, exhaust gases may collect at the rear of the vehicle and enter if the liftgate, trunk/hatch, or rear-most window is open. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death.

(Continued)

WARNING: (Continued)

To maximize safety when towing a trailer: . Have the exhaust system inspected for leaks

and make necessary repairs before starting a trip.

. Never drive with the liftgate, trunk/hatch,

or rear-most window open. Fully open the air outlets on or under the instrument panel.

. Adjust the Climate Control system to a setting

that brings in only outside air and set the fan speed to the highest setting. See Climate Control System in the Index.

For more information about carbon monoxide, see Engine Exhaust on page 3‑41.

Towing a trailer requires a certain amount of experience. The combination you are driving is longer and not as responsive as the vehicle itself. Get acquainted with the handling and braking of the rig before setting out for the open road.

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Before starting, check all trailer hitch parts and attachments, safety chains, electrical connectors, lamps, tires and mirrors. If the trailer has electric brakes, start the combination moving and then apply the trailer brake controller by hand to be sure the brakes work. During the trip, check occasionally to be sure that the load is secure and the lamps and any trailer brakes still work. Following Distance Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid heavy braking and sudden turns. Passing More passing distance is needed when towing a trailer. The combination will not accelerate as quickly and is longer so it is necessary to go much farther beyond the passed vehicle before returning to the lane.

Backing Up Hold the bottom of the steering wheel with one hand. Then, to move the trailer to the left, move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly and, if possible, have someone guide you. Making Turns Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. The vehicle could be damaged. Avoid making very sharp turns while trailering. When turning with a trailer, make wider turns than normal. Do this so the trailer will not strike soft shoulders, curbs, road signs, trees or other objects. Avoid jerky or sudden maneuvers. Signal well in advance. If the trailer turn signal bulbs burn out, the arrows on the instrument panel will still flash for turns. It is important to check occasionally to be sure the trailer bulbs are still working.

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Driving On Grades Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might get hot and no longer work well. Vehicles can tow in D (Drive). Shift the transmission to a lower gear if the transmission shifts too often under heavy loads and/or hilly conditions. The tow/haul mode may be used if the transmission shifts too often. See Tow/Haul Mode on page 3‑36. When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If the engine is turned off immediately after towing at high altitude on steep uphill grades, the vehicle may show signs similar to engine overheating. To avoid this, let the engine run while parked, preferably on level ground, with the automatic transmission in P (Park) for a few minutes before turning the engine off. If the overheat warning comes on, see Engine Overheating on page 7‑34.

Parking on Hills

{ WARNING:

Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the trailer can be damaged. When possible, always park the rig on a flat surface.

If parking the rig on a hill:

1. Press the brake pedal, but do not shift into P (Park) yet. Turn the wheels into the curb if facing downhill or into traffic if facing uphill.

2. Have someone place chocks under the trailer

wheels.

3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load.

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4. Reapply the brake pedal. Then apply the parking

brake and shift into P (Park).

5. Release the brake pedal.

{ WARNING:

It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. If the engine has been left running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when on fairly level ground, always put the shift lever fully in P (Park) with the parking brake firmly set.

Leaving After Parking on a Hill 1. Apply and hold the brake pedal. 2. Start the engine 3. Shift into a gear 4. Release the parking brake 5. Let up on the brake pedal. 6. Drive slowly until the trailer is clear of the chocks. 7. Stop and have someone pick up and store the

chocks.

Maintenance When Trailer Towing The vehicle needs service more often when pulling a trailer. See this manual's Maintenance Schedule or Index for more information. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, axle lubricant, belts, cooling system and brake system. It is a good idea to inspect these before and during the trip. Check periodically to see that all hitch nuts and bolts are tight.

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Trailer Wiring Harness Heavy-Duty Trailer Wiring Harness Package

The vehicle has a seven-pin universal heavy-duty trailer connector attached to the rear bumper beam next to the integrated trailer hitch.

The seven-wire harness contains the following trailer circuits:

. Yellow: Left Stop/Turn Signal . Dark Green: Right Stop/Turn Signal . Brown: Taillamps . White: Ground

Light Green: Back-up Lamps

. Red: Battery Feed* . Dark Blue: Trailer Brake*

*The fuses for these two circuits are installed in the underhood electrical center, but the wires are not connected. They should be connected by your dealer or a qualified service center. If charging a remote (non-vehicle) battery, press the tow/haul mode button located at the end of the shift lever. This will boost the vehicle system voltage and properly charge the battery. If the trailer is too light for tow/haul mode, turn on the headlamps as a second way to boost the vehicle system and charge the battery.

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Electric Brake Control Wiring Provisions These wiring provisions are included with the vehicle as part of the trailer wiring package. These provisions are for an electric brake controller. The instrument panel contains blunt cut wires near the data link connector for the trailer brake controller. The harness contains the following wires:

. Dark Blue: Brake Signal to Trailer Connector . Red/Black: Battery

Light Blue/White: Brake Switch

. White: Ground

It should be installed by your dealer or a qualified service center.

Trailer Recommendations Subtract the hitch loads from the Cargo Weight Rating (CWR). CWR is the maximum weight of the load the vehicle can carry. It does not include the weight of the people inside, but you can figure about 150 lbs. (68 kg) for each passenger. The total cargo load must not be more than the vehicles CWR. Weigh the vehicle with the trailer attached, so the GVWR or GAWR are not exceeded. If using a weight-distributing hitch, weigh the vehicle without the spring bars in place. The best performance is obtained by correctly spreading out the weight of the load and choosing the correct hitch and trailer brakes. For more information see Towing a Trailer on page 6‑42 .

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2 NOTES

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Section 7

Service and Appearance Care

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Accessories and Modifications . . . . . . . . . . . . . . . . . . 7-4
California Proposition 65 Warning . . . . . . . . . . . . . . . 7-5
California Perchlorate Materials

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Doing Your Own Service Work . . . . . . . . . . . . . . . . . . 7-6
Adding Equipment to the Outside of the

Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Gasoline Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Gasoline Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
California Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Fuel E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Fuels in Foreign Countries . . . . . . . . . . . . . . . . . . . . . 7-10
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Filling a Portable Fuel Container . . . . . . . . . . . . . . . 7-13
Checking Things Under the Hood . . . . . . . . . . . . . . . 7-14
Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Engine Compartment Overview . . . . . . . . . . . . . . . . 7-16
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 7-22

Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . 7-24
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
Engine Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Overheated Engine Protection

Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37
Engine Fan Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37
Power Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Windshield Washer Fluid . . . . . . . . . . . . . . . . . . . . . . 7-39
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-50
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-51
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-52
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
High Intensity Discharge (HID) Lighting . . . . . . . . 7-54
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
License Plate Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-56
Replacement Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-56

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Section 7

Service and Appearance Care

Windshield Wiper Blade Replacement . . . . . . . . . . . 7-57
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-58
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-60
Tire Terminology and Definitions . . . . . . . . . . . . . . . 7-62
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . 7-65
High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . . 7-66
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . 7-67
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . 7-68
Tire Inspection and Rotation . . . . . . . . . . . . . . . . . . . 7-71
When It Is Time for New Tires . . . . . . . . . . . . . . . . . 7-73
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-73
Different Size Tires and Wheels . . . . . . . . . . . . . . . 7-75
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 7-76
Wheel Alignment and Tire Balance . . . . . . . . . . . . 7-77
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-77
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-78
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-79
Changing a Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-80
Removing the Spare Tire and Tools . . . . . . . . . . . . 7-81
Removing the Flat Tire and Installing the

Spare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-86
Secondary Latch System . . . . . . . . . . . . . . . . . . . . . . 7-91
Storing a Flat or Spare Tire and Tools . . . . . . . . . 7-94
Spare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-98

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Appearance Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-99
Interior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-99
Fabric/Carpet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-100
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-101
Instrument Panel, Vinyl, and Other Plastic

Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-102
Wood Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-102
Speaker Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-102
Care of Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . 7-103
Weatherstrips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-103
Washing Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 7-103
Cleaning Exterior Lamps/Lenses . . . . . . . . . . . . . 7-104
Finish Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-104
Windshield, Backglass, and Wiper Blades . . . . 7-105
Aluminum or Chrome-Plated Wheels

and Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-106
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-107
Sheet Metal Damage . . . . . . . . . . . . . . . . . . . . . . . . . 7-107
Finish Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-107
Underbody Maintenance . . . . . . . . . . . . . . . . . . . . . 7-107
Chemical Paint Spotting . . . . . . . . . . . . . . . . . . . . . . 7-108
Vehicle Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-108
Vehicle Identification Number (VIN) . . . . . . . . . . . 7-108
Service Parts Identification Label . . . . . . . . . . . . . 7-109

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Section 7

Service and Appearance Care

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-109
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . 7-109
Windshield Wiper Fuses . . . . . . . . . . . . . . . . . . . . . . 7-109
Power Windows and Other Power Options . . . 7-110
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 7-110

Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 7-110
Center Instrument Panel Fuse Block . . . . . . . . . . 7-112
Underhood Fuse Block . . . . . . . . . . . . . . . . . . . . . . . 7-113
Capacities and Specifications . . . . . . . . . . . . . . . . . . 7-117

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Service For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks:

Accessories and Modifications When non‐dealer/non‐retailer accessories are added to the vehicle, they 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. 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.

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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 Your Airbag-Equipped Vehicle on page 2‑90.

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 transmitters, may contain perchlorate materials. Special handling may be necessary. For additional information, see www.dtsc.ca.gov/hazardouswaste/perchlorate.

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Doing Your Own Service Work If this vehicle is a Two‐mode Hybrid, see the Two‐mode Hybrid manual for more information.

{ 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.

. Be sure to use the proper nuts, bolts, and

other fasteners. English and metric 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. To order the proper service manual, see Service Publications Ordering Information on page 9‑18. This vehicle has an airbag system. Before attempting to do your own service work, see Servicing Your Airbag-Equipped Vehicle on page 2‑89. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Record on page 8‑14. Adding Equipment to the Outside of the Vehicle Things added to the outside of the vehicle can affect the airflow around it. This can cause wind noise and can affect fuel economy and windshield washer performance. Check with your dealer before adding equipment to the outside of the vehicle.

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Fuel Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.

Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85
(85% Ethanol) on page 7‑9. For all other vehicles, use only the unleaded gasoline described under Gasoline Octane on page 7‑8 .

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Gasoline Octane If the vehicle has the 6.0L V8 engine (VIN Code J), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service. If the vehicle has the 6.2L V8 engine (VIN Code F), use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slightly reduced, and a slight audible knocking noise, commonly referred to as spark knock, might be heard. If the octane is less than 87, you might notice a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you could damage the engine. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

Gasoline Specifications At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB‐3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See Additives on page 7‑9 for additional information. California Fuel If the vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that meet California specifications. See the underhood emission control label. If this fuel is not available in states adopting California emissions standards, the vehicle will operate satisfactorily on fuels meeting federal specifications, but emission control system performance might be affected. The malfunction indicator lamp could turn on and the vehicle might fail a smog‐check test. See Malfunction Indicator Lamp on page 4‑36 . If this occurs, return to your authorized dealer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs might not be covered by the vehicle warranty.

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Additives To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to work properly. In most cases, nothing should have to be added to the fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean, or if the vehicle experiences problems due to dirty injectors or valves, look for gasoline that is advertised as TOP TIER Detergent Gasoline. For customers who do not use TOP TIER Detergent Gasoline regularly, one bottle of GM Fuel System Treatment PLUS, added to the fuel tank at every engine oil change, can help clean deposits from fuel injectors and intake valves. GM Fuel System Treatment PLUS is the only gasoline additive recommended by General Motors. Also, your dealer has additives that will help correct and prevent most deposit‐related problems. Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines might be available in your area. We recommend that you use these gasolines, if they comply with the specifications described earlier. However, E85 (85% ethanol) and

other fuels containing more than 10% ethanol must not be used in vehicles that were not designed for those fuels. Notice: This vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty. Some gasolines that are not reformulated for low emissions can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you buy gasoline whether the fuel contains MMT. We recommend against the use of such gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the emission control system could be affected. The malfunction indicator lamp might turn on. If this occurs, return to your dealer for service. Fuel E85 (85% Ethanol) Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). For all other vehicles, use only the unleaded gasolline described under Gasoline Octane on page 7‑8.

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We encourage the use of E85 in vehicles that are designed to use it. The ethanol in E85 is a “renewable” fuel, meaning it is made from renewable sources such as corn and other crops. Many service stations will not have an 85% ethanol fuel (E85) pump available. The U.S. Department of Energy has an alternative fuels website (www.afdc.energy.gov/afdc/locator/stations/) that can help you find E85 fuel. Those stations that do have E85
should have a label indicating ethanol content. Do not use the fuel if the ethanol content is greater than 85%. At a minimum, E85 should meet ASTM Specification D 5798. By definition, this means that fuel labeled E85
will have an ethanol content between 70% and 85%. Filling the fuel tank with fuel mixtures that do not meet ASTM specifications can affect driveability and could cause the malfunction indicator lamp to come on. To ensure quick starts in the wintertime, the E85 fuel must be formulated properly for your climate according to ASTM specification D 5798. If you have trouble starting on E85, it could be because the E85 fuel is not properly formulated for your climate. If this happens, switching to gasoline or adding gasoline to the fuel tank can improve starting. For good starting and heater efficiency below 0°C (32°F), the fuel mix in the fuel tank should contain no more than 70% ethanol. It is best not to alternate repeatedly between gasoline and E85. If you do switch fuels, it is recommended that you add as much fuel as possible — do not add less than

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11 L (3 gal) when refueling. You should drive the vehicle immediately after refueling for at least 11 km (7 mi) to allow the vehicle to adapt to the change in ethanol concentration. E85 has less energy per liter (gallon) than gasoline, so you will need to refill the fuel tank more often when using E85 than when you are using gasoline. See Filling the Tank on page 7‑11. Notice: Some additives are not compatible with E85
fuel and can harm the vehicle's fuel system. Do not add anything to E85. Damage caused by additives would not be covered by the vehicle warranty. Notice: This vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty. Fuels in Foreign Countries If you plan on driving in another country outside the United States or Canada, the proper fuel might be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by the vehicle warranty.

To check the fuel availability, ask an auto club, or contact a major oil company that does business in the country where you will be driving. Filling the Tank

{ WARNING:

Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. Turn off the engine when refueling. Do not smoke near fuel or when refueling the vehicle. Do not use cellular phones. Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended when refueling the vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump; never let children pump fuel.

The tethered fuel cap is located behind a hinged fuel door on the driver side of the vehicle. If the vehicle has E85 fuel capability, the fuel cap will be yellow and state that E85 or gasoline can be used. See Fuel E85
(85% Ethanol) on page 7‑9.

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{ WARNING:

Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and then something ignites it, you could be badly burned. This spray can happen if the tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any hiss noise to stop. Then unscrew the cap all the way.

Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible. See Washing Your Vehicle on page 7‑103. When replacing the fuel cap, insert the tether in its hole before tightening the cap. Turn the fuel cap clockwise until it clicks. It will require more effort to turn the fuel cap on the last turn as you tighten it. Make sure the cap is fully installed. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp on page 4‑36.

To open the fuel door, push the rearward center edge in and release and it will open. To remove the fuel cap, turn it slowly counterclockwise. The fuel cap has a spring in it; if the cap is released too soon, it will spring back to the right. While refueling, hang the tethered fuel cap from the hook on the fuel door.

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If the vehicle has a Driver Information Center (DIC), the TIGHTEN GAS CAP message displays if the fuel cap is not properly installed.

{ WARNING:

If a fire starts while you are refueling, do not remove the nozzle. Shut off the flow of fuel by shutting off the pump or by notifying the station attendant. Leave the area immediately.

Notice: If you need a new fuel cap, be sure to get the right type. Your dealer can get one for you. If you get the wrong type, it may not fit properly. This may cause the malfunction indicator lamp to light and may damage the fuel tank and emissions system. See Malfunction Indicator Lamp on page 4‑36.

Filling a Portable Fuel Container

{ WARNING:

Never fill a portable fuel container while it is in the vehicle. Static electricity discharge from the container can ignite the fuel vapor. You can be badly burned and the vehicle damaged if this occurs. To help avoid injury to you and others: . Dispense fuel only into approved containers. . Do not fill a container while it is inside a

vehicle, in a vehicle's trunk, pickup bed, or on any surface other than the ground.

. Bring the fill nozzle in contact with the inside

of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete.

. Do not smoke while pumping fuel. . Do not use a cellular phone while

pumping fuel.

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Checking Things Under the Hood

{ WARNING:

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

{ WARNING:

Things that burn can get on hot engine parts and start a fire. These include liquids like fuel, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine.

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Hood Release To open the hood:

1. Pull the handle with

this symbol on it. It is located inside the vehicle to the lower left of the steering wheel.

2. Then go to the front of the vehicle and locate

the secondary hood release, near the center of the grille.

3. Push the secondary hood release to the right. 4. Lift the hood.

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

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Engine Compartment Overview If the vehicle is a Two-mode Hybrid, see the Two-mode Hybrid manual for more information. When you open the hood on the 6.2L engine this is what you will see:

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A. Engine Air Cleaner/Filter on page 7‑22. B. Coolant Surge Tank and Pressure Cap. See

Cooling System on page 7‑27.

C. Remote Positive (+) Terminal. See Jump Starting

on page 7‑44 .

D. Battery on page 7‑43. E. Engine Oil Fill Cap. See “When to Add Engine Oil”

under Engine Oil on page 7‑17.

F. Automatic Transmission Dipstick (Out of View). See “Checking the Fluid Level” under Automatic Transmission Fluid on page 7‑24.

G. Remote Negative (−) Terminal (GND) (Out of

View). See Jump Starting on page 7‑44.

H. Engine Oil Dipstick (Out of View). See “Checking

Engine Oil” under Engine Oil on page 7‑17.

I. Engine Cooling Fan (Out of View). See Cooling

System on page 7‑27.

J. Power Steering Fluid Reservoir (Out of View). See

Power Steering Fluid on page 7‑38.

K. Brake Master Cylinder Reservoir. See “Brake

Fluid” under Brakes on page 7‑40.

L. Underhood Fuse Block on page 7‑113. M. Windshield Washer Fluid Reservoir. See “Adding Washer Fluid” under Windshield Washer Fluid on page 7‑39 . Engine Oil 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 oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 7‑16 for the location of the engine oil dipstick.

1. Turn off the engine and give the oil several minutes to drain back into the oil pan. If this is not done, the oil dipstick might not show the actual level.

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.

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When to Add Engine Oil

See Engine Compartment Overview on page 7‑16
for the location of the engine oil fill cap.

If the oil is below the cross-hatched area at the tip of the dipstick, add at least one quart/liter of the recommended oil. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 7‑117. Notice: Do not add too much oil. If 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.

Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through.

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What Kind of Engine Oil to Use Look for three things:

. GM4718M

This vehicle's engine requires a special oil meeting GM Standard GM4718M. Oils meeting this standard may be identified as synthetic. However, not all synthetic oils will meet this GM standard. Use only an oil that meets GM Standard GM4718M.

Notice: Using oils that do not have the GM4718M Standard designation can cause engine damage not covered by the vehicle warranty.

. SAE 5W-30

SAE 5W-30 is best for the vehicle. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.

. American Petroleum Institute (API) starburst

symbol

Oils meeting these requirements should have the starburst symbol on the container. This symbol indicates that the oil has been certified by the American Petroleum Institute (API).

This vehicle's engine was filled at the factory with a Mobil 1® synthetic oil meeting all requirements for this vehicle. Substitute Engine Oil: When adding oil to maintain engine oil level, oil meeting GM Standard GM4718M might not be available. You can add substitute oil designated SAE 5W-30 with the starburst symbol at all temperatures. Substitute oil not meeting GM Standard GM4718M should not be used for an oil change.

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Engine Oil Additives / Engine Oil Flushes Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM standards 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. 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. See DIC Warnings and Messages on page 4‑49 . Change the oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year. However, 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 using genuine parts and reset the system. It is also important to check the oil regularly 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.

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How to Reset the Engine Oil Life System The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where the oil is changed prior to a CHANGE ENGINE OIL SOON message being turned on, reset the system. Always reset the engine oil life to 100% after every oil change. It will not reset itself. To reset the Engine Oil Life System:

1. Display the OIL LIFE REMAINING on the DIC. 2. Press and hold the SET/RESET button on the DIC for more than five seconds. The oil life will change to 100%.

If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the Engine Oil Life System has not reset. Repeat the procedure.

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, 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.

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Engine Air Cleaner/Filter See Engine Compartment Overview on page 7‑16 for the location of the engine air cleaner/filter. Inspect the air cleaner/filter every other oil change and replace it at the first oil change after each 50,000 mile (80 000 km) interval. See Scheduled Maintenance on page 8‑3 for more information. If driving on 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 engine air cleaner/filter from the vehicle by following Steps 1
through 6. When the engine air cleaner/filter is removed, lightly shake it to release loose dust and dirt. If the engine air cleaner/filter remains caked with dirt, a new filter is required. Never use compressed air to clean the filter.

Replacing the Engine Air Cleaner/Filter

1. Locate the air cleaner/

filter assembly . See Engine Compartment Overview on page 7‑16 .

2. Loosen the four screws on the cover of the

housing and lift up the cover.

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{ 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.

3. Remove the engine air cleaner/filter from the

housing. Care should be taken to dislodge as little dirt as possible.

4. Clean the engine air cleaner/filter sealing surfaces

and the housing. Inspect or replace the engine air cleaner/filter.

5. 6. Reinstall the cover and tighten the screws.

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Automatic Transmission Fluid When to Check and Change Automatic Transmission Fluid It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheating the transmission. If you suspect a small leak, then use the following checking procedures to check the fluid level. However, if there is a large leak, then it may be necessary to have the vehicle towed to a dealer service department and have it repaired before driving the vehicle further. Notice: Use of the incorrect automatic transmission fluid may damage the vehicle, and the damages may not be covered by the vehicle's warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 8‑10. Change the fluid and filter at the intervals listed in the Maintenance Schedule. See Scheduled Maintenance on page 8‑3 . Be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 8‑10 .

How to Check Automatic Transmission Fluid Notice: Too much or too little fluid can damage the transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Too little fluid could cause the transmission to overheat. Be sure to get an accurate reading if checking the transmission fluid. Before checking the fluid level, prepare the vehicle as follows:

1. Start the engine and park the vehicle on a level

surface. Keep the engine running.

2. Apply the parking brake and place the shift lever in

P (Park).

3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, move the shift lever back to P (Park).

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4. Allow the engine to idle (500 – 800 rpm) for at least

one minute. Slowly release the brake pedal.

5. Keep the engine running and press the Trip/Fuel

button or trip odometer reset stem until TRANS TEMP (Transmission Temperature) displays on the Driver Information Center (DIC).

6. Using the TRANS TEMP reading, determine and

perform the appropriate check procedure. If the TRANS TEMP reading is not within the required temperature ranges, allow the vehicle to cool, or operate the vehicle until the appropriate transmission fluid temperature is reached.

Cold Check Procedure Use this procedure only as a reference to determine if the transmission has enough fluid to be operated safely until a hot check procedure can be made. The hot check procedure is the most accurate method to check the fluid level. Perform the hot check procedure at the first opportunity. Use this cold check procedure to check fluid level when the transmission temperature is between 80°F and 90°F (27°C and 32°C).

1. Locate the

transmission dipstick at the rear of the engine compartment, on the passenger side of the vehicle.

See Engine Compartment Overview on page 7‑16
for more information.

2. Flip the handle up and then pull out the dipstick

3.

and wipe it with a clean rag or paper towel. Install the dipstick by pushing it back in all the way, wait three seconds, and then pull it back out again. 4. Check both sides of the dipstick and read the lower

level. Repeat the check procedure to verify the reading.

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Hot Check Procedure Use this procedure to check the transmission fluid level when the transmission fluid temperature is between 160°F and 200°F (71°C and 93°C). The hot check is the most accurate method to check the fluid level. The hot check should be performed at the first opportunity in order to verify the cold check. The fluid level rises as fluid temperature increases, so it is important to ensure the transmission temperature is within range.

1. Locate the

transmission dipstick at the rear of the engine compartment, on the passenger side of the vehicle.

See Engine Compartment Overview on page 7‑16
for more information.

2. Flip the handle up and then pull out the dipstick

3.

and wipe it with a clean rag or paper towel. Install the dipstick by pushing it back in all the way, wait three seconds, and then pull it back out again.

5.

If the fluid level is below the COLD check band, add only enough fluid as necessary to bring the level into the COLD band. It does not take much fluid, generally less than one pint (0.5L). Do not overfill.

6. Perform a hot check at the first opportunity after

the transmission reaches a normal operating temperature between 160°F to 200°F (71°C to 93°C). If the fluid level is in the acceptable range, push the dipstick back in all the way, then flip the handle down to lock the dipstick in place.

7.

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Consistency of Readings Always check the fluid level at least twice using the procedures described. Consistency (repeatable readings) is important to maintaining proper fluid level. If fluid is added, it may take 15 minutes or longer to obtain an accurate reading because of residual fluid draining down the dipstick tube. If inconsistent readings persist, check the transmission breather to be sure it is clean and not clogged. If readings are still inconsistent, contact your dealer. Cooling System The cooling system allows the engine to maintain the correct working temperature.

4. Check both sides of the dipstick and read the lower

level. Repeat the check procedure to verify the reading.

5. Safe operating level is within the HOT cross hatch band on the dipstick. If the fluid level is not within the HOT band, and the transmission temperature is between 160°F and 200°F (71°C and 93°C), add or drain fluid as necessary to bring the level into the HOT band. If the fluid level is low, add only enough fluid to bring the level into the HOT band. It does not take much fluid, generally less than one pint (0.5L). Do not overfill. If the fluid level is in the acceptable range, push the dipstick back in all the way, then flip the handle down to lock the dipstick in place.

6.

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{ 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.

A. Coolant Surge Tank B. Coolant Surge Tank Pressure Cap C. Engine Cooling Fan(s)

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Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for five years or 150,000 miles (240 000 km), 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 7‑34.

{ 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 miles) 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.

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. 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. 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 8‑10 for more information.

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 vehicle's 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.

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 −34°F (−37°C),

outside temperature.

. Gives boiling protection up to 265°F (129°C),

engine temperature.

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Checking Coolant The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the FULL COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant at the coolant surge tank, but be sure the cooling system is cool before this is done.

The coolant surge tank is located in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 7‑16 for more information on location. The coolant level should be at or above the FULL COLD mark. If it is not, you may have a leak in the cooling system.

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How to Add Coolant to the Surge Tank

{ 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 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.

{ 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.

{ 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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If no coolant is visible in the surge tank, add coolant as follows:

1. You can remove the

coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot.

Turn the pressure cap slowly counterclockwise about one full turn. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.

2. Keep turning the pressure cap slowly and

remove it.

3. Fill the coolant surge tank with the proper mixture

to the FULL COLD mark.

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5. Replace the pressure cap. Be sure the pressure

cap is hand-tight and fully seated.

6. Verify coolant level after engine is shut off and the

coolant is cold. If necessary, repeat coolant fill procedure Steps 1 through 6.

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. Engine Overheating The vehicle has several indicators to warn of engine overheating. There is a coolant temperature gauge on your vehicle's instrument panel. See Engine Coolant Temperature Gauge on page 4‑35. In addition, ENGINE OVERHEATED STOP ENGINE, ENGINE OVERHEATED IDLE ENGINE, and a ENGINE POWER IS REDUCED message comes on in the Driver Information Center (DIC) on the instrument panel. See DIC Warnings and Messages on page 4‑49. You may decide not to lift the hood when this warning appears, but instead get service help right away. See Roadside Service on page 9‑8.

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 fan. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the FULL COLD mark.

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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 your engine without coolant is not covered by the vehicle warranty. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency. 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 7‑37 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. 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 7‑37 for information on driving to a safe place in an emergency.

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3.

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.

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

If No Steam Is Coming From The Engine Compartment The ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message, along with a low coolant condition, can indicate a serious problem. If you get an engine overheat warning, but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you:

. Climb a long hill on a hot day. . Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. See Towing a Trailer on page 6‑42. If you get the ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message with no sign of steam, try this for a minute or so: If the overheat warning is displayed with no sign of steam:

1. Turn the air conditioning off. 2. Turn the heater on to the highest temperature and

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

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Overheated Engine Protection Operating Mode If an overheated engine condition exists and the ENGINE POWER IS REDUCED message is displayed, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, you will notice a loss in power and engine performance. This operating mode allows the vehicle to be driven to a safe place in an emergency. Driving extended miles (km) 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 7‑17.

Engine Fan Noise The vehicle has electric cooling fans. You might hear the fans spinning at low speed during most everyday driving. The fans can turn off if no cooling is required. Under heavy vehicle loading, trailer towing, and/or high outside temperatures, or if you are operating the air conditioning system, the fans can change to high speed and you might hear an increase in fan noise. This is normal and indicates that the cooling system is functioning properly. The fans change to low speed when additional cooling is no longer required.

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Power Steering Fluid

See Engine Compartment Overview on page 7‑16
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. 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.

The level should be at the FULL COLD mark. If necessary, add only enough fluid to bring the level up to the mark. What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 8‑10 . 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 8‑10.

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