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undesired. It could respond to a turning vehicle ahead, guardrails, signs, and other non-moving objects. To override FAB, firmly press the accelerator pedal, if it is safe to do so.
Intelligent Brake Assist (IBA) IBA may activate when the brake pedal is applied quickly by providing a boost to braking based on the speed of approach and distance to a vehicle ahead. Minor brake pedal pulsations or pedal movement during this time is normal and the brake pedal should continue to be applied as needed. IBA will automatically disengage only when the brake pedal is released.
. Detect a vehicle when
weather limits visibility, such as in fog, rain, or snow.
. Detect a vehicle ahead if it
is partially blocked by pedestrians or other objects.
Complete attention is always required while driving, and you should be ready to take action and apply the brakes and/or steer the vehicle to avoid crashes.
FAB may slow the vehicle to a complete stop to try to avoid a potential crash. If this happens, FAB may engage the Electric Parking Brake (EPB) to hold the vehicle at a stop. Release the EPB or firmly press the accelerator pedal.
{ Warning
FAB may automatically brake the vehicle suddenly in situations where it is unexpected and
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{ Warning
IBA may increase vehicle braking in situations when it may not be necessary. You could block the flow of traffic. If this occurs, take your foot off the brake pedal and then apply the brakes as needed.
FAB and IBA can be disabled through vehicle personalization. See “Auto Collision Preparation” in “Collision/Detection Systems” under Vehicle Personalization 0 150.
{ Warning
Using FAB or IBA while towing a trailer could cause you to lose control of the vehicle and crash. Turn the system to Off when towing a trailer.
Side Blind Zone Alert (SBZA) If equipped, the SBZA system is a lane-changing aid that assists drivers with avoiding crashes that occur with moving vehicles in the side blind zone (or spot) areas. The SBZA warning display will light up in the corresponding outside side mirror and will flash if the turn signal is on.
{ Warning
SBZA does not alert the driver to vehicles rapidly approaching outside of the side blind zones, pedestrians, bicyclists, or animals. It may not provide alerts when changing lanes under all driving conditions. Failure to use proper care when changing lanes may result in injury, death, or vehicle damage. Before making a lane change, always check mirrors, glance over your shoulder, and use the turn signals.
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SBZA Detection Zones
The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, or 3.5 m (11 ft). The height of the zone is approximately between 0.5 m (1.5 ft) and 2 m (6 ft) off the ground. This zone starts at approximately the middle of the vehicle and goes back 5 m (16 ft). How the System Works The SBZA symbol lights up in the side mirrors when the system detects a moving vehicle in the next lane over that is in the side blind zone. This indicates it may be
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unsafe to change lanes. Before making a lane change, check the SBZA display, check mirrors, glance over your shoulder, and use the turn signals.
Left Side Mirror
Right Side Mirror
Display
Display
When the vehicle is started, both outside mirror SBZA displays will briefly come on to indicate the system is operating. When the vehicle is in a forward gear, the left or right side mirror display will light up if a moving vehicle is detected in that blind zone. If the turn signal is activated in the same direction of a detected vehicle, this display will flash as an extra warning not to change lanes. SBZA can be disabled through vehicle personalization. See “Collision Detection Systems” under Vehicle Personalization 0 150.
If SBZA is disabled by the driver, the SBZA mirror displays will not light up. When the System Does Not Seem to Work Properly SBZA displays may not come on when passing a vehicle quickly, for a stopped vehicle, or when towing a trailer. The SBZA detection zones that extend back from the side of the vehicle do not move further back when a trailer is towed. Use caution while changing lanes when towing a trailer. SBZA may alert to objects attached to the vehicle, such as a trailer, bicycle, or object extending out to either side of the vehicle. This is normal system operation; the vehicle does not need service. SBZA may not always alert the driver to vehicles in the side blind zone, especially in wet conditions. The system does not need to be serviced. The system may light up due to guardrails, signs, trees, shrubs, and other non-moving objects. This is normal system operation; the vehicle does not need service.
SBZA may not operate when the SBZA sensors in the left or right corners of the rear bumper are covered with mud, dirt, snow, ice, or slush, or in heavy rainstorms. For cleaning instructions, see "Washing the Vehicle" under Exterior Care 0 319. If the DIC displays the system unavailable message after cleaning both sides of the vehicle toward the rear corners of the vehicle, see your dealer. If the SBZA displays do not light up when vehicles are in the blind zone and the system is clean, the system may need service. Take the vehicle to your dealer. When SBZA is disabled for any reason other than the driver turning it off, the Side Blind Zone Alert On option will not be available on the personalization menu. Radio Frequency Information See Radio Frequency Statement 0 355.
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Lane Departure Warning (LDW) If equipped, LDW may help avoid crashes due to unintentional lane departures. It may provide an alert if the vehicle is crossing a lane without using a turn signal in that direction. LDW uses a camera sensor to detect the lane markings at speeds of 56 km/h (35 mph) or greater.
{ Warning
The LDW system does not steer the vehicle. The LDW system may not:
. Provide enough time to
avoid a crash.
. Detect lane markings under
poor weather or visibility conditions. This can occur if the windshield or headlamps are blocked by dirt, snow, or ice; if they are
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Warning (Continued)
not in proper condition; or if the sun shines directly into the camera.
. Detect road edges. . Detect lanes on winding or
hilly roads.
If LDW only detects lane markings on one side of the road, it will only warn you when departing the lane on the side where it has detected a lane marking. Always keep your attention on the road and maintain proper vehicle position within the lane, or vehicle damage, injury, or death could occur. Always keep the windshield, headlamps, and camera sensors clean and in good repair. Do not use LDW in bad weather conditions.
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How the System Works The LDW camera sensor is on the windshield ahead of the rearview mirror. To turn LDW on and off, press @ on the center stack to the left of the infotainment screen. The control indicator will light when LDW is on.
When LDW is on, @ is green if LDW is available to warn of a lane departure. If the vehicle crosses a detected lane marking without using the turn signal in that direction, @ changes to amber and flashes. Additionally, there will be three beeps, or the driver seat will pulse three times, on the right or left, depending on the lane departure direction.
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When the System Does Not Seem to Work Properly The system may not detect lanes as well when there are: . Close vehicles ahead. . Sudden lighting changes, such
as when driving through tunnels.
. Banked roads. If the LDW system is not functioning properly when lane markings are clearly visible, cleaning the windshield may help. LDW alerts may occur due to tar marks, shadows, cracks in the road, temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LDW off if these conditions continue.
Lane Keep Assist (LKA) If equipped, LKA may help avoid crashes due to unintentional lane departures. It may assist by gently turning the steering wheel if the vehicle approaches a detected lane
marking without using a turn signal in that direction. It may also provide a Lane Departure Warning (LDW) system alert as the lane marking is crossed. The LKA system will not assist or provide an LDW alert if it detects that you are actively steering. Override LKA by turning the steering wheel. LKA uses a camera to detect lane markings between 60 km/h (37 mph) and 180 km/h (112 mph).
{ Warning The LKA system does not continuously steer the vehicle. It may not keep the vehicle in the lane or give a Lane Departure Warning (LDW) alert, even if a lane marking is detected. The LKA and LDW systems may not:
. Provide an alert or enough
steering assist to avoid a lane departure or crash.
(Continued)
Warning (Continued)
. Detect lane markings under
poor weather or visibility conditions. This can occur if the windshield or headlamps are blocked by dirt, snow, or ice, if they are not in proper condition, or if the sun shines directly into the camera.
. Detect road edges. . Detect lanes on winding or
hilly roads.
If LKA only detects lane markings on one side of the road, it will only assist or provide an LDW alert when approaching the lane on the side where it has detected a lane marking. Even with LKA and LDW, you must steer the vehicle. Always keep your attention on the road and maintain proper vehicle position within the lane, or vehicle damage, injury, or death could
(Continued)
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Warning (Continued)
occur. Always keep the windshield, headlamps, and camera sensors clean and in good repair. Do not use LKA in bad weather conditions.
{ Warning
Using LKA while towing a trailer or on slippery roads could cause loss of control of the vehicle and a crash. Turn the system off.
How the System Works The LKA camera sensor is on the windshield ahead of the rearview mirror. To turn LKA on and off, press A on the center stack.
When on, A is green if LKA is available to assist and provide LDW alerts. It may assist by gently turning the steering wheel and display A as amber if the vehicle approaches a detected lane marking without using a turn signal in that direction. It may also provide an LDW alert by flashing A amber as the lane marking is crossed. Additionally, there will be three beeps, or the driver seat will pulse three times, on the right or left, depending on the lane departure direction. The LKA system does not continuously steer the vehicle. If LKA does not detect active driver steering, an alert and chime may be provided. Move the steering wheel to dismiss.
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When the System Does Not Seem to Work Properly The system performance may be affected by: . Close vehicles ahead. . Sudden lighting changes, such
as when driving through tunnels.
. Banked roads. . Roads with poor lane markings,
such as two-lane roads.
If the LKA system is not functioning properly when lane markings are clearly visible, cleaning the windshield may help. LKA assistance and/or LDW alerts may occur due to tar marks, shadows, cracks in the road, temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LKA off if these conditions continue.
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Fuel Use of the recommended fuel is an important part of the proper maintenance of this vehicle. When driving in the U.S. and Canada, to help keep the engine clean and maintain optimum vehicle performance, we recommend using TOP TIER Detergent Gasolines. See www.toptiergas.com for a list of TOP TIER Detergent Gasolines.
If the vehicle has the 3.6L V6 LFX engine (VIN Code 3), use regular unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 87 or higher. Do not
use gasoline with an octane rating below 87, as it may cause engine damage and will lower fuel economy. If the vehicle has the 3.6L V6 LF3
twin turbo engine (VIN Code 8), use premium unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 91 or higher. If the octane is less than 91, damage to the engine may occur and may void the vehicle warranty. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.Use of Seasonal Fuels Use summer and winter fuels in the appropriate season. The fuels industry automatically modifies the fuel for the appropriate season. If fuel is left in the vehicle tank for long periods of time, driving or starting could be affected. Drive the vehicle until the fuel is at one-half tank or less, then refuel with the current seasonal fuel.
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, mainly high octane racing gasolines, can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). Do not use gasolines and/or fuel additives with
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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.
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 (Check Engine Light) 0 125. If this occurs, return to your authorized dealer for diagnosis. If it is determined that the condition is
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caused by the type of fuel used, repairs may not be covered by the vehicle warranty.
gasoline additive recommended by General Motors. It is available at your dealer.
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, manganese, 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 keep fuel systems clean, TOP TIER Detergent Gasoline is recommended. See Fuel 0 232. If TOP TIER Detergent Gasoline is not available, one bottle of Fuel System Treatment PLUS added to the fuel tank at every engine oil change, can help. Fuel System Treatment PLUS is the only
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.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone
while refueling.
. Do not reenter the vehicle
while pumping fuel.
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Warning (Continued)
. Keep children away from
the fuel pump and never let children pump fuel.
. Fuel can spray out if the
refueling nozzle is inserted too quickly. This spray can happen if the tank is nearly full, and is more likely in hot weather. Insert the refueling nozzle slowly and wait for any hiss noise to stop prior to beginning to flow fuel
If equipped, the fuel door is locked when the vehicle doors are locked. Press K on the RKE transmitter to unlock. To open the fuel door, push and release the rearward center edge of the door. The vehicle has a capless refueling system and does not have a fuel cap. The filling nozzle must be fully inserted and latched prior to starting fuel flow.
{ Warning
Overfilling the fuel tank by more than three clicks of a standard fill nozzle may cause:
. Vehicle performance issues, including engine stalling and damage to the fuel system.
. Fuel spills. . Potential fuel fires.
Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds before removing the nozzle. After initial shutoff, do not partially remove the nozzle to add
more fuel as this will result in fuel spillage. Clean fuel from painted surfaces as soon as possible. See Exterior Care 0 319.
{ 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.
Filling the Tank with a Portable Gas Can If the vehicle runs out of fuel and must be filled from a portable gas can:
1. Locate the capless funnel
adapter from under the carpet in the trunk.
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Warning (Continued)
. 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.
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If this is a professional vehicle, see the Coachbuilder's Owner Manual for funnel adapter location. Insert and latch the funnel into the capless fuel system.
2.
{ Warning
Attempting to refuel without using the funnel adapter may cause fuel spillage and damage the capless fuel system. This could cause a fire and you or others could be badly burned and the vehicle could be damaged.
3. Remove and clean the funnel
adapter and return to the storage location.
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.
. 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.
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Trailer 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 0 316. For towing the vehicle behind another vehicle such as a motor home, see Recreational Vehicle Towing 0 316.
Driving Characteristics and Towing Tips
Driving with a Trailer When towing a trailer: . Become familiar with the state
and local laws that apply 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) of trailer towing, do not drive over 80 km/h (50 mph) and do not make starts at full throttle.
. 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.
. Do not use Adaptive Cruise
Control when towing.
. The Front Automatic Braking System should be set to Off when towing. See Front Automatic Braking (FAB) System 0 225.
. Turn off Parking Assist when
towing.
{ 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:
. 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 0 196.
Towing a trailer requires a certain amount of experience. The combination you are driving is longer and not as responsive as the
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vehicle itself. Get acquainted with the handling and braking of the rig before setting out for the open road. 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. 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
Caution
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,
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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 cluster will still flash for turns. It is important to 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 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. 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
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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 0 259. 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.
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.
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 Maintenance Schedule 0 330. 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.
Trailer Towing Before pulling a trailer, three important considerations have to do with weight: . Weight of the trailer. . Weight of the trailer tongue. . Total weight on your vehicle's
tires.
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Weight of the Trailer How heavy can a trailer safely be? It should never weigh more than 454 kg (1,000 lb). But even that can be too heavy. It depends on how the rig is used. For example, 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” following. 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.
Ask your dealer for trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices 0 347. 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 0 186.
The trailer tongue (1) should weigh 10 % 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. Total Weight on Your Vehicle's Tires Be sure the vehicle's tires are inflated to the upper limit for cold tires. These numbers can be found on the Tire and Loading Information
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label. See Vehicle Load Limits 0 186. Make sure not to go over the GVW limit for the vehicle, including the weight of the trailer tongue.
Towing Equipment
Hitches Use the correct hitch equipment. See your dealer or a hitch dealer for assistance. . 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, seal the holes when the hitch is removed. If the holes are not sealed, dirt, water, and deadly carbon monoxide (CO) from the exhaust can get into the vehicle. See Engine Exhaust 0 196.
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. Leave enough slack so the rig can turn. Never allow safety chains to drag on the ground. Trailer Brakes Does the trailer have its own brakes? 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 tap into the vehicle's brake system. If this is done, both brake systems will not work well or at all.
Conversions and Add-Ons
Add-On Electrical Equipment
{ Warning
The Data Link Connector (DLC) is used for vehicle service and Emission Inspection/Maintenance testing. See Malfunction Indicator Lamp (Check Engine Light) 0 125. A device connected to the Data Link Connector (DLC)— such as an aftermarket fleet or driver-behavior tracking device— may interfere with vehicle systems. This could affect vehicle operation and cause a crash. Such devices may also access information stored in the vehicle’s systems.
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Caution
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 0 83 and Adding Equipment to the Airbag-Equipped Vehicle 0 83.
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Vehicle CareGeneral Information
General Information . . . . . . . . . . 243
California Proposition65 Warning . . . . . . . . . . . . . . . . . 243
California Perchlorate
Materials Requirements . . . . . 243
Accessories and
Modifications . . . . . . . . . . . . . . . . 243
Vehicle Checks Doing Your Own
Service Work . . . . . . . . . . . . . . . 244
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine CompartmentOverview . . . . . . . . . . . . . . . . . . . . 246
Engine Cover . . . . . . . . . . . . . . . . . 249
Engine Oil . . . . . . . . . . . . . . . . . . . . 250
Engine Oil Life System . . . . . . . 252
Automatic TransmissionFluid . . . . . . . . . . . . . . . . . . . . . . . . 253
Engine Air Cleaner/Filter . . . . . . 253
Cooling System . . . . . . . . . . . . . . 255
Engine Coolant . . . . . . . . . . . . . . . 256
Engine Overheating . . . . . . . . . . 259
Overheated Engine ProtectionOperating Mode . . . . . . . . . . . . . 260
Power Steering Fluid (LFX
with FWD) . . . . . . . . . . . . . . . . . . 261
Power Steering Fluid (LF3 and
LFX with AWD) . . . . . . . . . . . . . 261
Washer Fluid . . . . . . . . . . . . . . . . . 262
Brakes . . . . . . . . . . . . . . . . . . . . . . . 262
Brake Fluid . . . . . . . . . . . . . . . . . . . 263
Battery - North America . . . . . . 264
All-Wheel Drive . . . . . . . . . . . . . . . 265
Starter Switch Check . . . . . . . . . 265
Automatic Transmission ShiftLock Control Function Check . . . . . . . . . . . . . . . . . . . . . . . 265
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 266
Wiper Blade Replacement . . . . 266
Windshield Replacement . . . . . 267Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 267
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 268
High Intensity Discharge (HID)Lighting . . . . . . . . . . . . . . . . . . . . . 268
LED Lighting . . . . . . . . . . . . . . . . . 268
Back-Up Lamps . . . . . . . . . . . . . . 268
License Plate Lamp . . . . . . . . . . 269
Replacement Bulbs . . . . . . . . . . . 269Electrical System
Electrical System Overload . . . 270
Fuses and Circuit Breakers . . . 270Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 271
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 274
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 275
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 277
All-Season Tires . . . . . . . . . . . . . . 278
Winter Tires . . . . . . . . . . . . . . . . . . 278
Summer Tires . . . . . . . . . . . . . . . . 279
Tire Sidewall Labeling . . . . . . . . 279
Tire Designations . . . . . . . . . . . . . 282
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 282
Tire Pressure . . . . . . . . . . . . . . . . . 285
Tire Pressure for High-SpeedOperation . . . . . . . . . . . . . . . . . . . 286
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 287
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . 288
Tire Inspection . . . . . . . . . . . . . . . . 291
Tire Rotation . . . . . . . . . . . . . . . . . 291
When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . . . 292
Buying New Tires . . . . . . . . . . . . . 293
Different Size Tires andWheels . . . . . . . . . . . . . . . . . . . . . . 294
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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:
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 295
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 296
Wheel Replacement . . . . . . . . . . 296
Tire Chains . . . . . . . . . . . . . . . . . . . 297
If a Tire Goes Flat . . . . . . . . . . . . 298
Tire Sealant andCompressor Kit . . . . . . . . . . . . . 299
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . 306
Tire Changing . . . . . . . . . . . . . . . . 307
Compact Spare Tire . . . . . . . . . . 311
Full-Size Spare Tire . . . . . . . . . . 312Jump Starting
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 313
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . 316
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 316
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 319
Interior Care . . . . . . . . . . . . . . . . . . 323
Floor Mats . . . . . . . . . . . . . . . . . . . . 326California Proposition 65 Warning 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
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harm. Engine exhaust, many parts and systems, many fluids, and some component wear by-products contain and/or emit these chemicals. See Battery - North America 0 264
and Jump Starting - North America 0 313.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
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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 0 83.
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 0 354.
This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle 0 83. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records 0 341.
Caution
Even small amounts of contamination can cause damage to vehicle systems. Do not allow contaminants to contact the fluids, reservoir caps, or dipsticks.
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Hood To open the hood:
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1. Pull the hood release lever with this symbol on it. It is inside the vehicle on the lower side of the instrument panel.
2. Go to the front of the vehicle to
find the secondary hood release handle. The handle is under the front edge of the hood near the center. Push the handle to the right and at the same time raise the hood.
Before closing the hood, be sure all the filler caps are on properly. Then bring the hood from full open to within 15 cm (6 in) 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
3.6L V6 Engine
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11. Engine Compartment Fuse
Block 0 271.
12. Remote Negative (−) Terminal
(Out of View). See Jump Starting - North America 0 313.
13. Windshield Washer Fluid
Reservoir. See Washer Fluid 0 262.
1. Engine Air Cleaner/Filter 0 253. 2. Power Steering Fluid Reservoir
(Under Engine Cover) (If Equipped). See Power Steering Fluid (LFX with FWD) 0 261 or Power Steering Fluid (LF3 and LFX with AWD) 0 261.
3. Engine Oil Fill Cap. See
Engine Oil 0 250.
4. Engine Oil Dipstick (Out of
View). See Engine Oil 0 250.
5. Engine Cover 0 249. 6. Engine Cooling Fans (Out of View). See Cooling System 0 255.
7. Brake Fluid Reservoir. See
Brake Fluid 0 263.
8. Engine Coolant Surge Tank
and Pressure Cap. See Engine Coolant 0 256.
9. Battery - North America 0 264
(Battery Cover not Shown).
10. Remote Positive (+) Terminal
(Battery Cover not Shown). See Jump Starting - North America 0 313.
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3.6L V6 Engine Twin Turbo
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11. Remote Positive (+) Terminal
(Battery Cover not Shown). See Jump Starting - North America 0 313.
12. Engine Compartment Fuse
Block 0 271.
13. Windshield Washer Fluid
Reservoir. See Washer Fluid 0 262.
14. Remote Negative (−) Terminal
(Out of View). See Jump Starting - North America 0 313.
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Engine Cover
3.6L V6 Engine
1. Engine Oil Fill Cap 2. Engine Cover Bolt 3. Engine Cover
1. Engine Air Cleaner/Filter 0 253. 2. Power Steering Fluid Reservoir
(Under Engine Cover). See Power Steering Fluid (LFX with FWD) 0 261 or Power Steering Fluid (LF3 and LFX with AWD) 0 261.
3. Engine Oil Fill Cap. See
Engine Oil 0 250.
4. Engine Oil Dipstick. See
Engine Oil 0 250.
5. Engine Cover 0 249. 6. Engine Cooling Fans (Out of View). See Cooling System 0 255.
7. Charged Air Coolant Reservoir and Pressure Cap. See Engine Coolant 0 256.
8. Brake Fluid Reservoir. See
Brake Fluid 0 263.
9. Engine Coolant Surge Tank
and Pressure Cap. See Engine Coolant 0 256.
10. Battery - North America 0 264
(Battery Cover not Shown).
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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 0 252.
. 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 0 246 for the location of the engine oil dipstick. 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.
2. Pull out the dipstick and wipe it
with a clean paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level.
3.6L V6 Engine Twin Turbo
1. Engine Oil Fill Cap 2. Engine Cover Bolt 3. Engine Cover
To remove: 1. Remove the oil fill cap (1). 2. Remove the engine cover
bolt (2).
3. Raise the engine cover (3) to release it from the retainers.
4. Lift and remove the engine
cover.
5. Reverse Steps 1–4 to reinstall
the engine cover.
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When to Add Engine Oil
3.6L V6 Engine
3.6L V6 Twin Turbo Engine
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 0 343.
Caution
Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If you find that you have an oil level above the operating range, i.e., the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged. You should drain out the excess oil or limit driving of the vehicle and seek a service professional to remove the excess amount of oil.
See Engine Compartment Overview 0 246 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.
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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 0 339.
Specification Ask for and use engine oils that meet the dexos1™ specification. Engine oils that have been approved by GM as meeting the dexos1 specification are marked with the dexos1 approved logo. See www.gmdexos.com.
Caution
Failure to use the recommended engine oil can result in engine damage not covered by the
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Caution (Continued)
vehicle warranty. Check with your dealer or service provider on whether the oil is approved to the dexos1 specification.
Viscosity Grade Use SAE 5W-30 viscosity grade engine oil. 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.
Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the
trash or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. See Engine Oil Messages 0 143. 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
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system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must be changed at least once a year and at this time the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed. How to Reset the Engine Oil Life System Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system: 1. Using the DIC controls on the
right side of the steering wheel, display REMAINING OIL LIFE
on the DIC. See Driver Information Center (DIC) 0 134. When remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages 0 143.
2. Press SEL on the DIC controls
and hold SEL down for a few seconds to clear the CHANGE ENGINE OIL SOON message and reset the oil life at 100%. Be careful not to reset the oil life display accidentally at any time other than after the oil is changed. It cannot be reset accurately until the next oil change.
The oil life system can also be reset as follows: 1. Turn the ignition on with the
engine off.
2. Fully press and release the
accelerator pedal three times within five seconds. If the CHANGE ENGINE OIL SOON message is not on, the system is reset.
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The system is reset when the CHANGE ENGINE OIL SOON message is off. If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the engine oil life system has not been reset. Repeat the procedure.
Automatic Transmission Fluid 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. See your dealer to have the fluid and filter changed at the intervals listed in the Maintenance Schedule 0 330.
Engine Air Cleaner/Filter The engine air cleaner/filter is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview 0 246.
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When to Inspect the Engine Air Cleaner/Filter For intervals on changing and inspecting the engine air cleaner/ filter, see Maintenance Schedule 0 330. How to Inspect the Engine Air Cleaner/Filter Do not start the engine or have the engine running with the engine air cleaner/filter housing open. Before removing the engine air cleaner/ filter, make sure that the engine air cleaner/filter housing and nearby components are free of dirt and debris. Remove the engine air cleaner/filter. Lightly tap and shake the engine air cleaner/filter (away from the vehicle), to release dust and dirt. Inspect the engine air cleaner/filter for damage, and replace if damaged. Do not clean the engine air cleaner/filter or components with water or compressed air.
To inspect or replace the engine air cleaner/filter:
3.6L V6 Engine
1. Remove the seven screws on top of the engine air cleaner/ filter housing.
2. Lift the air cleaner/filter cover
housing away from the engine.
3. Pull out the filter. 4.
Inspect or replace the engine air cleaner/filter.
5. Reverse Steps 1-3 to reinstall
the filter cover housing.
3.6L V6 Engine Twin Turbo
1. Screws 2. Secondary Air Hose
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3. Lower Air Duct Clamp 4. Lower Electrical Connector 5. Upper Electrical Connector 6. Upper Air Duct Clamp 1. Disconnect the lower and
upper outlet ducts by loosening the lower (3) and upper (6) air duct clamps.
2. Disconnect the lower (4) and
upper (5) electrical connectors and wiring attachments from the air cleaner/filter cover.
3. Remove the screws (1) on top
of the air cleaner/filter cover. 4. Lift the air cleaner/filter cover
housing away from the engine.
5. Pull out the air cleaner/filter. 6.
Inspect or replace the engine air cleaner/filter.
7. Reverse Steps 1-5 to reinstall
the air cleaner/filter cover housing.
{ Warning
Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.
Caution
If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving.
Cooling System The cooling system allows the engine to maintain the correct working temperature.
3.6L V6 Engine
1. Electric Engine Cooling
Fans (Out of View)
2. Coolant Surge Tank and
Pressure Cap
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{ Warning
Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.
Caution
Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.
Engine Coolant The engine and Charged Air Coolant (CAC) cooling systems in the vehicle are filled with DEX-COOL® engine coolant mixture. See Recommended Fluids and Lubricants 0 339 and Maintenance Schedule 0 330. The following explains the cooling systems and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating 0 259. 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
(Continued)
3.6L V6 Engine Twin Turbo
1. Electric Engine Cooling
Fans (Out of View)
2. Charged Air Coolant (CAC)
Bottle and Pressure Cap 3. Coolant Surge Tank and
Pressure Cap
{ Warning
An electric engine cooling fan under the hood can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan.
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