2013 Buick Enclave Owners Manual

on page 10‑72. The park assist sensors are covered by frost or ice. Frost or ice can form around and behind the sensors and may not always be seen; this can occur after washing the vehicle in cold weather. The message may not clear until the frost or ice has melted.

. A trailer was attached to the

vehicle, or an object was hanging out of the liftgate during the last drive cycle. Once the object is removed, URPA will return to normal operation. . A tow bar is attached to the

vehicle.

The bumper is damaged. Take the vehicle to your dealer to repair the system.

. Other conditions, such as

vibrations from a jackhammer or the compression of air brakes on a very large truck, are affecting system performance.

Side Blind Zone Alert (SBZA) If available, the Side Blind Zone Alert system is a lane changing aid that assists drivers with avoiding crashes that occur with vehicles in the side blind zones.

{ WARNING

SBZA does not detect vehicles rapidly approaching outside of the side blind zones, pedestrians, bicyclists, or animals. Failure to use proper care when changing lanes may result in injury, death,

(Continued)

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WARNING (Continued)

or vehicle damage. Before making a lane change, always check mirrors, glance over your shoulder, and use the turn signals.

SBZA Detection Zones The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, 3.5 m (11 ft). This zone starts at each side mirror and goes back approximately

5.0 m (16 ft). The height of the zone is approximately between 0.5 m (1.5 ft) and 2.0 m (6 ft) off the ground. Use caution while changing lanes when towing a trailer, as the SBZA detection zones that extend back from the sides of the vehicle do not move further back when a trailer is towed.

How the System Works The SBZA symbol lights up in the side mirrors when the system detects a vehicle in the side blind zone, indicating it may be unsafe to change lanes. Before making a lane change, check the SBZA display, check all mirrors, glance over your shoulder, and use the turn signals.

Driving and Operating

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When the vehicle is started, both outside mirror SBZA displays will briefly come on to indicate the system is operating. When the vehicle is moving forward, the left or right side mirror display will light up if a vehicle is detected in that blind zone. If the turn signal is activated and a vehicle is also detected on the same side, the display will flash to give you extra warning not to change lanes. At speeds greater then 32 km/h (20 mph), SBZA displays may come on when approaching or passing other vehicles. SBZA displays may come on when a passed vehicle remains in or drops back into the detection zone. SBZA can be disabled through the Driver Information Center (DIC). See Driver Information Center (DIC) on page 5‑22. If SBZA is disabled by the driver, the SBZA mirror displays will not light up.

Left Side Mirror

Right Side Mirror

Display

Display

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Driving and Operating

When the System Does Not Seem To Work Properly Missed alerts can occur under normal circumstances and will increase in wet conditions. The system does not need to be serviced. SBZA is designed to ignore stationary objects; however, the system may occasionally light up due to guard rails, signs, trees, shrubs, and other stationary objects. This is normal system operation, the vehicle does not need service. If the SBZA displays do not light up when the system is on and vehicles are in the blind zone, the system may need service. Take the vehicle to your dealer. SBZA does not operate when the SBZA sensors in the left or right corners of the rear bumper are covered with mud, dirt, snow, ice, slush, or in heavy rainstorms. For cleaning instructions, see “Washing the Vehicle” under Exterior Care on page 10‑72. If the DIC still displays the SIDE DETECTION SYS

TEMPORARILY OFF message after cleaning the bumper, see your dealer. The SBZA displays may remain on if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. When SBZA is disabled for any reason other than the driver turning it off, it cannot be turned back on. The SIDE BLIND ZONE ALERT ON option will not be selectable if the conditions for normal system operation are not met.

SBZA Error Messages The following messages may appear in the DIC: SIDE BLIND ZONE ALERT SYSTEM OFF: This message indicates that the driver has turned the system off. SIDE DETECTION SYS TEMPORARILY OFF: This message indicates that the SBZA system is disabled either because the sensor cannot detect vehicles in

your blind zone, or the vehicle is passing through an open field of view area, such as the desert, where there is insufficient data for operation. This message may also activate during heavy rain or due to road spray. The vehicle does not need service. For cleaning, see “Washing the Vehicle” under Exterior Care on page 10‑72. SERVICE SIDE DETECTION SYSTEM: If this message appears, both SBZA displays will remain on indicating there is a problem with the SBZA system. If these displays remain on after continued driving, the system needs service. Take the vehicle to your dealer. FCC Information See Radio Frequency Statement on page 13‑20 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310.

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Driving and Operating

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Rear Vision Camera (RVC) The vehicle may have an RVC system. Read this entire section before using it.

{ WARNING

The RVC system does not display children, pedestrians, bicyclists, animals, or any other object located outside the camera's field of view, below the bumper, or under the vehicle. Perceived distances may be different from actual distances. Do not back the vehicle using only the RVC screen, during longer, higher speed backing maneuvers, or where there could be cross traffic. Failure to use proper care before backing may result in injury, death, or vehicle damage. Always check behind and around the vehicle before backing.

The rear vision camera system is designed to help the driver when backing up by displaying a view of the area behind the vehicle. When the driver shifts the vehicle into R (Reverse), the video image automatically appears on the infotainment screen. Once the driver shifts out of R (Reverse), the screen will go back to the last screen that had been displayed, after a delay.

Turning the Rear Vision Camera System On or Off To turn the rear vision camera system on or off: 1. Shift into P (Park). 2. Press the Settings menu button

on the Home screen of the infotainment system.

3. Select the Rear Camera screen

button. The Rear Camera screen displays.

4. Select Rear Camera display and

then select ON or OFF.

The display remains on after shifting out of R (Reverse) for approximately 10 seconds. The display can be canceled during this time by performing one of the following: . Press a hard key on the

infotainment system.

. Shift into P (Park). . Reach a vehicle speed of

8 km/h (5 mph).

Symbols The RVC system may have a feature that lets the driver view symbols on the RVC screen while using the rear vision camera. The Ultrasonic Rear Parking Assist (URPA) system must not be disabled to use the caution symbols. See Ultrasonic Parking Assist on page 9‑31. The symbols appear when an object has been detected by the URPA system. The symbol may cover the object when viewing the RVC screen.

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Driving and Operating

To turn the symbols on or off: 1. Shift into P (Park). 2. Press the Settings menu button

on the Home screen of the infotainment system.

3. Select the Rear Camera screen

button. The Rear Camera screen displays.

4. Select Park Assist Symbols and

then select ON or OFF.

Rear Cross Traffic Alert (RCTA) On vehicles with RCTA, a red warning triangle with an arrow may also display on the RVC screen to warn of traffic coming from either direction. Three beeps will sound from the speaker on that side. This system detects objects coming from up to 20 m (65 ft) from the left or right side behind the vehicle. Use caution while backing up when towing a trailer, as the RCTA detection zones that extend out

from the back of your vehicle do not move further back when a trailer is towed. The RCTA system can be disabled through the Driver Information Center (DIC). See Driver Information Center (DIC) on page 5‑22. Rear Vision Camera Location The camera is located above the license plate. The area displayed by the camera is limited and does not display objects that are close to either corner or under the bumper. The area displayed can vary depending on vehicle orientation or road conditions. The distance of the image that appears on the screen differs from the actual distance. The following illustrations show the field of view that the camera provides.

1. View displayed by the camera.

1. View displayed by the camera. 2. Corner of the rear bumper.

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When the System Does Not Seem To Work Properly The rear vision camera system might not work properly or display a clear image if:

The RVC is turned off. See “Turning the Rear Camera System On or Off” earlier in this section. It is dark. The sun or the beam of headlights is shining directly into the camera lens.

Ice, snow, mud, or anything else builds up on the camera lens. Clean the lens, rinse it with water, and wipe it with a soft cloth. The back of the vehicle is in an accident. The position and mounting angle of the camera can change or the camera can be affected. Be sure to have the camera and its position and mounting angle checked at your dealer. There are extreme temperature changes.

Driving and Operating

9-37

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. TOP TIER gasoline is only available in the U.S. and Canada.

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Driving and Operating

Prohibited Fuels Gasolines containing oxygenates, such as ethers and ethanol, as well as reformulated gasolines are available in some cities. If these gasolines comply with the previously described specification, then they are acceptable to use. However, E85 (85% ethanol) and other fuels containing more than 15% ethanol must be used only in flex fuel vehicles.

{ CAUTION 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). Do not use gasolines with MMT as they can reduce spark plug life and affect emission control system performance. The malfunction indicator lamp may turn on. If this occurs, see your dealer for service.

Gasoline Specifications At a minimum, gasoline should meet ASTM specification D 4814. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See “Prohibited Fuels" in Fuel Additives on page 9‑39.

Recommended Fuel 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 may be heard. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using a higher octane rated gasoline, the engine needs service.

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California Fuel Requirements 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 may not pass a smog-check test. See Malfunction Indicator Lamp on page 5‑16. 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 may not be covered by the vehicle warranty.

Driving and Operating

9-39

Fuels in Foreign Countries If planning to drive in countries outside the U.S. or Canada, the proper fuel might be hard to find. Check regional auto club or fuel retail brand websites for availability in the country where driving. Never use leaded gasoline, fuel containing methanol, or any other fuel not recommended. Costly repairs caused by use of improper fuel would not be covered by the vehicle warranty.

Fuel 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 and avoid problems due to dirty injectors or valves, look for gasoline that is 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 the auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com. For customers who do not use TOP TIER Detergent Gasoline regularly, one bottle of Fuel System Treatment PLUS, part number 88861013, 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. It is available at your dealer.

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Driving and Operating

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 15% 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 spark plug life and affect emission control system performance. The malfunction indicator lamp might turn on. If this occurs, return to your dealer for service.

Filling the Tank

{ WARNING

Fuel vapors and fuel fires burn violently and can cause injury or death.

. 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.

. Keep sparks, flames, and

smoking materials away from fuel.

(Continued)

WARNING (Continued)

. Do not leave the fuel pump

unattended.

. Do not reenter the vehicle

while pumping fuel.

. Keep children away from the

fuel pump and never let children pump fuel.

. Fuel can spray out if the fuel

cap is opened too quickly. 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

The tethered fuel cap is located behind a hinged fuel door on the driver side of the vehicle. To open the fuel door, push the rearward center edge in and release and it will open.

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Driving and Operating

9-41

When replacing the fuel cap, turn it clockwise until it clicks. 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 5‑16.

{ 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 a new fuel cap is needed, be sure to get the right type of cap from your dealer. The wrong type of fuel cap might not fit properly, might cause the malfunction indicator lamp to light, and could damage the fuel

tank and emissions system. See Malfunction Indicator Lamp on page 5‑16.

Filling a Portable Fuel Container

{ WARNING

Filling a portable fuel container while it is in the vehicle can cause fuel vapors that can ignite either by static electricity or other means. You or others could be badly burned and the vehicle could be damaged. Always:

. Use approved fuel

containers.

. Remove the container from the vehicle, trunk, or pickup bed before filling.

. Place the container on the

ground.

(Continued)

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. 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 Exterior Care on page 10‑72.

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Driving and Operating

WARNING (Continued)

. Place the nozzle inside the fill

opening of the container before dispensing fuel, and keep it in contact with the fill opening until filling is complete.

. Fill the container no more than 95% full to allow for expansion.

. Do not smoke, light matches,

or use lighters while pumping fuel.

. Avoid using cell phones or

other electronic devices.

Towing

General Towing Information Only use towing equipment that has been designed for the vehicle. Contact your dealer or trailering dealer for assistance with preparing the vehicle for towing a trailer. Read the entire section before towing a trailer. For towing a disabled vehicle, see Towing the Vehicle on page 10‑68. For towing the vehicle behind another vehicle such as a motor home, see Recreational Vehicle Towing on page 10‑69.

Driving Characteristics and Towing Tips

Driving with a Trailer When towing a trailer: . Become familiar with the state

and local laws that apply specifically to trailer towing.

. Do not tow a trailer during the

first 800 km (500 mi), to prevent damage to the engine, axle or other parts. Then, during the first 800 km (500 mi) trailer towing, do not drive over 80 km/h (50 mph) and do not make starts at full throttle. The vehicle can tow in D (Drive) but M (Manual Mode) is recommended. See Manual Mode on page 9‑23. Use a lower gear if the transmission shifts too often.

{ 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. When towing a trailer:

(Continued)

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WARNING (Continued)

. Do not drive with the liftgate,

trunk/hatch, or rear-most window open.

. Fully open the air outlets on

or under the instrument panel.

. Also adjust the Climate

Control system to a setting that brings in only outside air. See “Climate Control Systems” in the Index. For more information about Carbon Monoxide, see Engine Exhaust on page 9‑20.

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.

Driving and Operating

9-43

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. Towing with a Stability Control System When towing, the sound of the stability control system might be heard. The system is reacting to the vehicle movement caused by the trailer, which mainly occurs during cornering. This is normal when towing heavier trailers. 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 situations that require heavy braking and sudden turns. Passing More passing distance is needed when towing a trailer. Because the rig is longer, it is necessary to go farther beyond the passed vehicle before returning to the lane. Backing Up Hold the bottom of the steering wheel with one hand. To move the trailer to the left, move your 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.

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Driving and Operating

When turning with a trailer, make wider turns than normal so the trailer will not strike soft shoulders, curbs, road signs, trees or other objects. Use the turn signal well in advance and avoid jerky or sudden maneuvers. Turn Signals When Towing a Trailer The turn signal indicators on the instrument cluster flash whenever signaling a turn or lane change. Properly hooked up, the trailer lamps also flash, telling other drivers the vehicle is turning, changing lanes or stopping. When towing a trailer, the arrows on the instrument cluster flash for turns even if the bulbs on the trailer are burned out. Check occasionally to be sure the trailer bulbs are still working. 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 have to be used so much that they would get hot and no longer work well. The vehicle can tow in D (Drive). Use a lower gear if the transmission shifts too often. The Tow/Haul Mode may be used if the transmission shifts too often. See Tow/Haul Mode on page 9‑24. When towing at high altitude on steep uphill grades, engine coolant boils 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 could show signs similar to engine overheating. To avoid this, let the engine run while parked, preferably on level ground, with the transmission in P (Park) for a few minutes before turning the engine off. If the overheat warning comes on, see Engine Overheating on page 10‑16.

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 brake pedal 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. Leaving After Parking on a Hill 1. Apply and hold the brake pedal

while you:

Start the engine. Shift into a gear. Release the parking brake.

2. Let up on the brake pedal. 3. Drive slowly until the trailer is

clear of the chocks.

4. 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 the Maintenance Schedule on page 11‑3. Things that are

especially important in trailer operation are automatic transmission fluid, engine oil, axle lubricant, belts, cooling system and brake system. Inspect these before and during the trip. Check periodically to see that all hitch nuts and bolts are tight. Engine Cooling When Trailer Towing The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑16.

Trailer Towing Three important considerations have to do with weight:

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

Driving and Operating

9-45

Weight of the Trailer How heavy can a trailer safely be? Speed, altitude, road grades, outside temperature, special equipment, and the amount of tongue weight the vehicle can carry must be considered. See “Weight of the Trailer Tongue” later in this section for more information. Maximum trailer weight is calculated assuming only the driver is in the tow vehicle and it has all the required trailering equipment. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight. Use the following chart to determine how much the vehicle can weigh, based upon the vehicle model and options.

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Driving and Operating

Vehicle

Maximum Trailer Weight

*GCWR

Front-Wheel Drive Front-Wheel Drive, V92 Trailer Towing Package All-Wheel Drive All-Wheel Drive, V92 Trailer Towing Package *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.

3 402 kg (7,500 lbs) 4 309 kg (9,500 lbs) 3 493 kg (7,700 lbs) 4 400 kg (9,700 lbs)

907 kg (2,000 lbs) 2 041 kg (4,500 lbs) 907 kg (2,000 lbs) 2 041 kg (4,500 lbs)

Ask your dealer for our trailering information or advice. See Customer Assistance Offices (U.S. and Canada) on page 13‑5 or Customer Assistance Offices (Mexico) on page 13‑5 for more information. Weight of the Trailer Tongue The tongue load (1) of any trailer is an important weight to measure because it affects the total gross weight of the vehicle. 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. If there are a lot of options, equipment, passengers or cargo in the vehicle, it will reduce the tongue weight the vehicle can carry, which will also reduce the trailer weight the vehicle can tow. If towing a trailer, the tongue load must be added to the GVW because the vehicle will be carrying that weight, too. See Vehicle Load Limits on page 9‑9

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If a weight-carrying hitch or a weight-distributing hitch is being used, the trailer tongue (1) should weigh 10-15 percent of the total loaded trailer weight (2). 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. Trailering may be limited by the vehicle's ability to carry tongue weight. Tongue weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross Axle Weight Rating). The effect of additional weight may reduce the trailering capacity more than the total of the additional weight. It is important that the vehicle does not exceed any of its ratings — GCWR, GVWR, RGAWR, Maximum Trailer Rating or Tongue Weight.

The only way to be sure it is not exceeding any of these ratings is to weigh the vehicle and trailer. Total Weight on the Vehicle's Tires Inflate the vehicle's tires to the upper limit for cold tires. These numbers can be found on the Certification label or see Vehicle Load Limits on page 9‑9 for more information. Do not go over the GVW limit for the vehicle, or the GAWR, including the weight of the trailer tongue. If using a weight distributing hitch, do not go over the rear axle limit before applying the weight distribution spring bars.

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9-47

Towing Equipment

Hitches It is important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are a few reasons why the right hitch is needed.

The rear bumper on the vehicle is not intended for hitches. Do not attach rental hitches or other bumper-type hitches to it. Use only a frame-mounted hitch that does not attach to the bumper. . Will any holes be made in the body of the vehicle when the trailer hitch is installed? If so, then be sure to seal the holes when the hitch is removed. If the holes are not sealed, dirt, water, and deadly carbon monoxide (CO) from the exhaust may get into the vehicle. See Engine Exhaust on page 9‑20.

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Driving and Operating

Weight-Distributing Hitches and Weight Carrying Hitches

1. Body-to-Ground Distance 2. Front of Vehicle When using a weight-distributing hitch, the hitch must be adjusted so that the distance (1) remains the same both before and after coupling the trailer to the tow vehicle.

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. Always leave just enough slack so the rig can turn. Never allow safety chains to drag on the ground. Trailer Brakes A loaded trailer that weighs more than 450 kg (1,000 lbs) 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. Because the vehicle has antilock brakes, do not try to tap into the vehicle's hydraulic brake system. If you do, both brake systems will not work well, or at all.

Trailer Wiring Harness

Basic Trailer Wiring The trailer wiring harness, with a seven-pin connector, is located at the rear of the vehicle and is tied to the vehicle's frame. The harness connector can be plugged into a seven-pin universal heavy-duty trailer connector available through your dealer. The seven-wire harness contains the following trailer circuits: . Yellow: Left Stop/Turn Signal . Dark Green: Right Stop/Turn

Signal

. Brown: Taillamps . Black: Ground

Light Green: Back-up Lamps

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

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*The fuse for this circuit is 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 the back-up lamp circuit is not functional, contact your dealer. If a remote (non-vehicle) battery is being charged, press the Tow/Haul mode switch located on the center console near the climate controls. 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 (non-HID only) as a second way to boost the vehicle system and charge the battery.

Driving and Operating

9-49

Electric Trailer Brake Control Wiring Provisions These wiring provisions for an electric trailer brake controller are included with the vehicle as part of the trailer wiring package. The instrument panel contains blunt cut wires above the parking brake assembly for the electric trailer brake controller. The harness contains the following wires: . Red/Black: Power Supply . White: Brake Switch Signal . Gray: Illumination . Dark Blue: Trailer Brake Signal . Black: Ground The electric trailer brake controller should be installed by your dealer or a qualified service center.

Conversions and Add-Ons

Add-On Electrical Equipment Notice: Some electrical equipment can damage the vehicle or cause components to not work and would not be covered by the warranty. Always check with your dealer before adding electrical equipment. Add-on equipment can drain the vehicle's 12-volt battery, even if the vehicle is not operating. The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle on page 3‑33 and Adding Equipment to the Airbag-Equipped Vehicle on page 3‑33.

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Driving and Operating

2 NOTES

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Vehicle Care

General Information

General Information . . . . . . . . . . 10-2
California Proposition

65 Warning . . . . . . . . . . . . . . . . . 10-2

California Perchlorate

Materials Requirements . . . . 10-3

Accessories and

Modifications . . . . . . . . . . . . . . . 10-3

Vehicle Checks Doing Your Own

Service Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment

Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Cover . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . . 10-9
Automatic Transmission

Fluid . . . . . . . . . . . . . . . . . . . . . . 10-10
Engine Air Cleaner/Filter . . . . 10-10
Cooling System . . . . . . . . . . . . 10-12
Engine Coolant . . . . . . . . . . . . . 10-12
Engine Overheating . . . . . . . . 10-16

Overheated Engine

Protection Operating Mode . . . . . . . . . . . 10-17
Power Steering Fluid . . . . . . . 10-18
Washer Fluid . . . . . . . . . . . . . . . 10-18
Brakes . . . . . . . . . . . . . . . . . . . . . 10-19
Brake Fluid . . . . . . . . . . . . . . . . . 10-20
Battery . . . . . . . . . . . . . . . . . . . . . 10-22
All-Wheel Drive . . . . . . . . . . . . . 10-22
Starter Switch Check . . . . . . . 10-22
Automatic Transmission Shift

Lock Control Function Check . . . . . . . . . . . . . . . . . . . . . 10-23

Ignition Transmission Lock

Check . . . . . . . . . . . . . . . . . . . . . 10-23

Park Brake and P (Park)

Mechanism Check . . . . . . . . 10-23

Wiper Blade

Replacement . . . . . . . . . . . . . . 10-24
Windshield Replacement . . . 10-25

Headlamp Aiming

Headlamp Aiming . . . . . . . . . . 10-25

Bulb Replacement

Bulb Replacement . . . . . . . . . . 10-25
High Intensity Discharge

(HID) Lighting . . . . . . . . . . . . . 10-25

Vehicle Care

10-1

Taillamps, Turn Signal, and

Stoplamps . . . . . . . . . . . . . . . . 10-26
License Plate Lamp . . . . . . . . 10-26
Replacement Bulbs . . . . . . . . . 10-27

Electrical System

High Voltage Devices and

Wiring . . . . . . . . . . . . . . . . . . . . . 10-27

Electrical System

Overload . . . . . . . . . . . . . . . . . . 10-27

Fuses and Circuit

Breakers . . . . . . . . . . . . . . . . . . 10-28

Engine Compartment Fuse

Block . . . . . . . . . . . . . . . . . . . . . 10-28

Instrument Panel Fuse

Block . . . . . . . . . . . . . . . . . . . . . 10-31

Wheels and Tires

Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-34
All-Season Tires . . . . . . . . . . . . 10-35
Winter Tires . . . . . . . . . . . . . . . . 10-35
Summer Tires . . . . . . . . . . . . . . 10-36
Tire Sidewall Labeling . . . . . . 10-36
Tire Designations . . . . . . . . . . . 10-38
Tire Terminology and

Definitions . . . . . . . . . . . . . . . . 10-39
Tire Pressure . . . . . . . . . . . . . . . 10-41
Tire Pressure Monitor

System . . . . . . . . . . . . . . . . . . . 10-43

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10-2

Vehicle Care

Tire Pressure Monitor

Operation . . . . . . . . . . . . . . . . . 10-44
Tire Inspection . . . . . . . . . . . . . . 10-47
Tire Rotation . . . . . . . . . . . . . . . 10-47
When It Is Time for New

Tires . . . . . . . . . . . . . . . . . . . . . . 10-48
Buying New Tires . . . . . . . . . . . 10-49
Different Size Tires and

Wheels . . . . . . . . . . . . . . . . . . . 10-51

Uniform Tire Quality

Grading . . . . . . . . . . . . . . . . . . . 10-51

Wheel Alignment and Tire

Balance . . . . . . . . . . . . . . . . . . . 10-53
Wheel Replacement . . . . . . . . 10-53
Tire Chains . . . . . . . . . . . . . . . . . 10-54
If a Tire Goes Flat . . . . . . . . . . 10-54
Tire Changing . . . . . . . . . . . . . . 10-56
Compact Spare Tire . . . . . . . . 10-64

Jump Starting

Jump Starting . . . . . . . . . . . . . . 10-65

Towing

Towing the Vehicle . . . . . . . . . 10-68
Recreational Vehicle

Towing . . . . . . . . . . . . . . . . . . . . 10-69

Appearance Care

Exterior Care . . . . . . . . . . . . . . . 10-72
Interior Care . . . . . . . . . . . . . . . . 10-75
Floor Mats . . . . . . . . . . . . . . . . . . 10-78

General Information 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:

California Proposition 65 Warning Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to

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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, safety 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.

Accessories and Modifications Adding non‐dealer accessories or making modifications 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. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty. Damage to vehicle components resulting from modifications or the installation or use of non‐GM certified parts, including control module or software 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. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician. Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3‑33.

Vehicle Care

10-3

Vehicle Checks

Doing Your Own Service Work

{ WARNING

It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner manual procedures and consult the service manual for your vehicle before doing any service work.

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 13‑16.

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10-4

Vehicle Care

This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle on page 3‑33. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records on page 11‑14. Notice: Even small amounts of contamination can cause damage to vehicle systems. Do not allow contaminants to contact the fluids, reservoir caps, or dipsticks.

Hood To open the hood:

1. Pull the hood release handle

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

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

3. After the lid has been partially lifted, a gas strut automatically lifts and holds 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 until it is completely latched.

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Engine Compartment Overview

Vehicle Care

10-5

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10-6

Vehicle Care

1. Radiator Pressure Cap. See

Cooling System on page 10‑12. 2. Engine Coolant Recovery Cap.

See Cooling System on page 10‑12.

3. Remote Negative (−) Terminal.

See Jump Starting on page 10‑65.

4. Engine Compartment Fuse

Block on page 10‑28.

5. Remote Positive (+) Terminal.

See Jump Starting on page 10‑65.

6. Power Steering Reservoir and

Cap (Under Engine Cover). See Power Steering Fluid on page 10‑18.

7. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10‑7.

8. Engine Cover on page 10‑6. 9. Engine Oil Dipstick (Out of

View). See “Checking Engine Oil” under Engine Oil on page 10‑7.

10. Automatic Transmission Fluid

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

11. Brake Master Cylinder

Reservoir. See “Brake Fluid” under Brakes on page 10‑19.

12. Engine Air Cleaner/Filter on

page 10‑10.

13. Windshield Washer Fluid

Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10‑18.

Engine Cover

1. Oil Fill Cap 2. Engine Cover To remove: 1. Remove the oil fill cap (1). 2. Raise the engine cover (2) to release it from the retainers.

3. Lift and remove the engine

cover.

4. Reverse Steps 1–3 to reinstall

engine cover.

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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 10‑9.

. 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 loop. See Engine Compartment Overview on page 10‑5 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.

{ WARNING

The engine oil dipstick handle may be hot; it could burn you. Use a towel or glove to touch the dipstick handle.

Vehicle Care

10-7

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. Notice: Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful

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10-8

Vehicle Care

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 10‑5 for the location of the engine oil fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through. Selecting the Right Engine Oil Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑12.

Specification Use and ask for licensed engine oils with the dexos1® approved certification mark. Engine oils meeting the requirements for the vehicle should have the dexos1
approved certification mark. This certification mark indicates that the oil has been approved to the dexos1
specification.

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

Viscosity Grade SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade 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 may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, always select an oil of the correct specification. See “Specification” earlier in this section for more information. 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.

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Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil.

Engine Oil Life System

When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a

Vehicle Care

10-9

year. The engine oil and filter must be changed at least once a year and, at this time, the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed. How to Reset the Engine Oil Life System Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system: 1. Turn the ignition to ON/RUN,

with the engine off.

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10-10

Vehicle Care

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.

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 Maintenance Schedule on page 11‑3, and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11‑12. 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 11‑12. 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 mile) interval. See Maintenance Schedule on page 11‑3. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. See Engine Compartment Overview on page 10‑5 for the location of the engine air cleaner/filter. 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.

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To inspect or replace the engine air cleaner/filter:

1. Ventilation Tube 2. Sensor

Vehicle Care

10-11

5. Loosen the six housing cover (3)

screws (2).

6. Remove the housing cover (3)

with outlet duct.

7. Remove the filter (4) and any

loose debris that may be found in the base (5). 8. Inspect or replace the filter (4). 9. Reverse Steps 2–6 to reinstall

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

10. Reinstall the engine cover. See

Engine Cover on page 10‑6.

{ 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.

1. Clamp 2. Screws 3. Housing Cover 4. Filter 5. Base 1. Remove the engine cover. See

Engine Cover on page 10‑6.

2. Disconnect the cover fitting from

the ventilation tube (1).

3. Disconnect the wiring harness connector from the sensor (2).

4. Loosen the outlet duct clamp (1).

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10-12

Vehicle Care

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

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

1. Engine Coolant Recovery Tank 2. Radiator Pressure Cap 3. 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.

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. See Maintenance Schedule on page 11‑3 and Recommended Fluids and Lubricants on page 11‑12. 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 10‑16.

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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.

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 improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the mixture can freeze and crack engine cooling parts. The repairs would not be covered by the warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants on page 11‑12.

Vehicle Care

10-13

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. 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 Engine Overheating on page 10‑16.

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10-14

Vehicle Care

How to Add Coolant to the Recovery Tank

How to Add Coolant to the Radiator

{ WARNING

{ WARNING

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.

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.