the occurrence of trailer sway that may be caused by improper trailer weight balance, or excessive vehicle speed. When the system detects trailer sway, the StabiliTrak® system may begin to apply the front brakes, without you pressing the brake pedal, to help you in stabilizing the vehicle. The StabiliTrak® warning light will flash to indicate that you should reduce vehicle speed. If the trailer sway continues, StabiliTrak® will reduce engine torque as a method to reduce the speed of the vehicle. Reducing the speed of the vehicle is necessary to reduce trailer sway. Electronic Trailer Sway Control is de-activated when StabiliTrak® is turned off, and is re-activated when it is turned back on. See StabiliTrak® System on page 4-7.
Following Distance Stay at least twice as far behind the vehicle ahead as you would when driving your vehicle without a trailer. This can help you avoid situations that require heavy braking and sudden turns. Passing You will need more passing distance up ahead when you are towing a trailer. And, because you are a good deal longer, you will need to go much farther beyond the passed vehicle before you can return to your lane. Backing Up Hold the bottom of the steering wheel with one hand. Then, to move the trailer to the left, just 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.
4-38
Making Turns Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. Your vehicle could be damaged. Avoid making very sharp turns while trailering. When you are turning with a trailer, make wider turns than normal. Do this so your trailer will not strike soft shoulders, curbs, road signs, trees or other objects. Avoid jerky or sudden maneuvers. Signal well in advance. Turn Signals When Towing a Trailer When you tow a trailer, your vehicle has to have extra wiring. The arrows on your instrument panel will flash whenever you signal a turn or lane change. Properly hooked up, the trailer lamps will also flash, telling other drivers you are about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument panel will flash for turns even if the bulbs on the trailer are burned out. Thus, you may think drivers behind you are seeing your signal when they are not. It’s 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 you start down a long or steep downgrade. If you do not shift down, you might have to use your brakes so much that they would get hot and no longer work well. If you are towing a trailer that weighs more than 1,000 lbs (450 kg), drive in INTERMEDIATE (I) instead of DRIVE (D) or, as you need to, a lower gear. This will minimize heat build-up and extend the life of your transmission.
4-39
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could start to move. People can be injured, and both your vehicle and the trailer can be damaged.
But if you ever have to park your rig on a hill, do the following: 1. Apply your regular brakes, but do not shift into
PARK (P) yet.
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 regular brakes. Then apply your
parking brake, and then shift to PARK (P).
5. Release the regular brakes.
When You Are Ready to Leave After Parking on a Hill 1. Apply your regular brakes and hold the pedal down
while you do the following: (cid:127) Start your engine. (cid:127) Shift into a gear. (cid:127) 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 Your vehicle will need service more often when you are pulling a trailer. See the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, belts, cooling system and brake system. Each of these is covered in this manual, and the Index will help you find them quickly. If you are trailering, it is a good idea to review these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight.
4-40
Section 5
Service and Appearance Care
Service ............................................................5-3
Accessories and Modifications ..........................5-3
California Proposition 65 Warning .....................5-3
California Perchlorate Materials Requirements .....5-4
Doing Your Own Service Work .........................5-4
Adding Equipment to the Outside of Your
Vehicle ......................................................5-5
Fuel ................................................................5-5
Gasoline Octane ............................................5-5
Gasoline Specifications ....................................5-6
California Fuel
...............................................5-6
Additives .......................................................5-7
Fuels in Foreign Countries ...............................5-7
Filling the Tank ..............................................5-8
Filling a Portable Fuel Container .....................5-10
Checking Things Under
the Hood ....................................................5-10
Hood Release ..............................................5-11
Engine Compartment Overview .......................5-12
Engine Oil ...................................................5-15
Engine Oil Life System ..................................5-18
Engine Air Cleaner/Filter ................................5-19
Automatic Transmission Fluid .........................5-21
Engine Coolant .............................................5-22
Engine Overheating .......................................5-24
Overheated Engine Protection Operating Mode ...5-26
Cooling System ............................................5-26
Power Steering Fluid .....................................5-31
Windshield Washer Fluid ................................5-32
Brakes ........................................................5-33
Battery ........................................................5-35
Jump Starting ...............................................5-36
All-Wheel Drive ..............................................5-42
Headlamp Aiming ...........................................5-44
Bulb Replacement ..........................................5-44
Halogen Bulbs ..............................................5-44
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps ....................................5-45
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps .........................................5-48
License Plate Lamp ......................................5-49
Replacement Bulbs .......................................5-50
Windshield Wiper Blade Replacement ..............5-50
5-1
Section 5
Service and Appearance Care
Tires ..............................................................5-52
Tire Sidewall Labeling ...................................5-53
Tire Terminology and Definitions .....................5-56
Inflation - Tire Pressure .................................5-59
High-Speed Operation ...................................5-61
Tire Pressure Monitor System .........................5-62
Tire Pressure Monitor Operation .....................5-63
Tire Inspection and Rotation ...........................5-67
When It Is Time for New Tires .......................5-68
Buying New Tires .........................................5-69
Different Size Tires and Wheels ......................5-71
Uniform Tire Quality Grading ..........................5-71
Wheel Alignment and Tire Balance ..................5-73
Wheel Replacement ......................................5-73
Tire Chains ..................................................5-74
If a Tire Goes Flat ........................................5-75
Changing a Flat Tire .....................................5-76
Removing the Spare Tire and Tools ................5-77
Removing the Flat Tire and Installing the
Spare Tire ................................................5-79
Storing a Flat or Spare Tire and Tools ............5-86
Compact Spare Tire ......................................5-88
Appearance Care ............................................5-89
Interior Cleaning ...........................................5-89
Fabric/Carpet ...............................................5-90
Leather .......................................................5-92
5-2
Instrument Panel, Vinyl, and Other Plastic
Surfaces ..................................................5-93
Care of Safety Belts ......................................5-93
Weatherstrips ...............................................5-93
Washing Your Vehicle ...................................5-94
Cleaning Exterior Lamps/Lenses .....................5-94
Finish Care ..................................................5-95
Windshield and Wiper Blades .........................5-95
Aluminum or Chrome-Plated Wheels and Trim .....5-96
Tires ...........................................................5-97
Sheet Metal Damage .....................................5-97
Finish Damage .............................................5-97
Underbody Maintenance ................................5-97
Chemical Paint Spotting .................................5-97
Vehicle Care/Appearance Materials ..................5-98
Vehicle Identification ......................................5-99
Vehicle Identification Number (VIN) .................5-99
Service Parts Identification Label .....................5-99
Electrical System ..........................................5-100
Add-On Electrical Equipment .........................5-100
Windshield Wiper Fuses ...............................5-100
Fuses and Circuit Breakers ..........................5-100
Instrument Panel Fuse Block ........................5-101
Engine Compartment Fuse Block ...................5-103
Capacities and Specifications ........................5-107
Service For service and parts needs, visit your dealer/retailer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks:
Accessories and Modifications When non-dealer/non-retailer accessories are added to your vehicle they can affect your vehicle’s performance and safety, including such things as, airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control and stability control. Some of these accessories could even cause malfunction or damage not covered by warranty. GM Accessories are designed to complement and function with other systems on your vehicle. Your GM dealer/retailer can accessorize your vehicle using genuine GM Accessories. When you go to your GM dealer/retailer and ask for GM Accessories, you will know that GM-trained and supported service technicians will perform the work using genuine GM Accessories. Also, see Adding Equipment to Your Airbag-Equipped Vehicle on page 1-70.
California Proposition 65 Warning Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems (including some inside the vehicle), many fluids, and some component wear by-products contain and/or emit these chemicals.
5-3
CAUTION:
(Continued)
(cid:127) Be sure to use the proper nuts, bolts, and
other fasteners. English and metric fasteners can be easily confused. If you use the wrong fasteners, parts can later break or fall off. You could be hurt.
If you want to do some of your own service work, you should use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 7-15. Your vehicle has an airbag system. Before attempting to do your own service work, see Servicing Your Airbag-Equipped Vehicle on page 1-70. You should keep a record with all parts receipts and list the mileage and the date of any service work you perform. See Maintenance Record on page 6-16.
California Perchlorate Materials Requirements Certain types of automotive applications, such as airbag initiators, seat belt pretensioners, and lithium batteries contained in remote keyless entry transmitters, may contain perchlorate materials. Special handling may be necessary. For additional information, see www.dtsc.ca.gov/hazardouswaste/perchlorate.
Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.
(cid:127) Be sure you have sufficient knowledge,
experience, the proper replacement parts, and tools before you attempt any vehicle maintenance task.
CAUTION:
(Continued)
5-4
Adding Equipment to the Outside of Your Vehicle Things you might add to the outside of your vehicle can affect the airflow around it. This can cause wind noise and can affect fuel economy and windshield washer performance. Check with your dealer/retailer before adding equipment to the outside of your vehicle. Fuel Use of the recommended fuel is an important part of the proper maintenance of your vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. The 8th digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies your vehicle’s engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) on page 5-99.
Gasoline Octane If your vehicle has the 3.4L V6 engine (VIN Code F), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, you might notice an audible knocking noise when you drive, commonly referred to as spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, the engine needs service. If your vehicle has the 3.6L V6 engine (VIN Code 7), use regular unleaded gasoline with a posted octane rating of 87 or higher. For best performance or trailer towing, you could choose to use middle grade 89 octane unleaded gasoline. If the octane rating is less than 87, you might notice an audible knocking noise when you drive, commonly referred to as spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, the engine needs service.
5-5
Gasoline Specifications
At a minimum, gasoline should meet ASTM specification
D 4814 in the United States or CAN/CGSB-3.5 or 3.511
in Canada. Some gasolines contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend against the use of
gasolines containing MMT. See Additives on page 5-7 for
additional information.
California Fuel If your 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, your 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 your vehicle might fail a smog-check test. See Malfunction Indicator Lamp on page 3-34. If this occurs, return to your authorized dealer/retailer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs might not be covered by your warranty.
5-6
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, you should not have to add anything to the fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean, or if your vehicle experiences problems due to dirty injectors or valves, look for gasoline that is advertised as TOP TIER Detergent Gasoline. Also, your dealer/retailer has additives that will help correct and prevent most deposit-related problems. Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines might be available in your area. We recommend that you use these gasolines, if they comply with the specifications described earlier. However, E85 (85% ethanol) and other fuels containing more than 10% ethanol must not be used in vehicles that were not designed for those fuels. Notice: Your 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 your warranty.
Some gasolines that are not reformulated for low emissions can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you buy gasoline whether the fuel contains MMT. We recommend against the use of such gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the emission control system could be affected. The malfunction indicator lamp might turn on. If this occurs, return to your dealer/retailer for service.
Fuels in Foreign Countries If you plan on driving in another country outside the United States or Canada, the proper fuel might be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by your warranty. To check the fuel availability, ask an auto club, or contact a major oil company that does business in the country where you will be driving.
5-7
Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the pump island. Turn off your engine when you are refueling. Do not smoke if you are near fuel or refueling your vehicle. Do not use cellular phones. Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended when refueling your vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump; never let children pump fuel.
5-8
The tethered fuel cap is located behind a hinged fuel door on the passenger’s side of the vehicle. 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.
{CAUTION:
{CAUTION:
Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and then something ignites it, you could be badly burned. This spray can happen if your tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any hiss noise to stop. Then unscrew the cap all the way.
Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible. See Washing Your Vehicle on page 5-94. 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 3-34.
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.
If you need a new fuel cap, be sure to get
Notice: the right type. Your dealer/retailer can get one for you. If you get the wrong type, it may not fit properly. This may cause your malfunction indicator lamp to light and may damage your fuel tank and emissions system. See Malfunction Indicator Lamp on page 3-34.
5-9
Filling a Portable Fuel Container
{CAUTION:
Never fill a portable fuel container while it is in your vehicle. Static electricity discharge from the container can ignite the fuel vapor. You can be badly burned and your vehicle damaged if this occurs. To help avoid injury to you and others:
(cid:127) Dispense fuel only into approved
containers.
(cid:127) Do not fill a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed, or on any surface other than the ground. (cid:127) Bring the fill nozzle in contact with the
inside of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete.
(cid:127) Do not smoke while pumping fuel. (cid:127) Do not use a cellular phone while
pumping fuel.
Checking Things Under the Hood
{CAUTION:
An electric fan under the hood can start up and injure you even when the engine is not running. Keep hands, clothing, and tools away from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine parts and start a fire. These include liquids like fuel, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine.
5-10
Hood Release To open the hood, do the following:
1. Pull the handle with
this symbol on it. It is located inside the vehicle, to the left of the brake pedal.
2. Then go to the front of the vehicle and lift up on the
secondary hood release lever.
3. Lift the hood, release the hood prop from its
retainer and put the hood prop into the slot in the hood.
Before closing the hood, be sure all the filler caps are on properly. Then lift the hood to relieve pressure on the hood prop. Remove the hood prop from the slot in the hood and return the prop to its retainer. Then just let the hood down and close it firmly.
5-11
Engine Compartment Overview When you open the hood on the 3.4L V6, here is what you will see:
5-12
A. Engine Air Cleaner/Filter. See Engine Air
Cleaner/Filter on page 5-19.
B. Engine Oil Fill Cap. See “When to Add Engine Oil”
under Engine Oil on page 5-15.
C. Engine Oil Dipstick. See “Checking Engine Oil”
under Engine Oil on page 5-15.
D. Brake Fluid Reservoir. See Brakes on page 5-33. E. Engine Compartment Fuse Block. See Fuses
and Circuit Breakers on page 5-100.
F. Remote Positive (+) Terminal. See Jump Starting on
page 5-36.
G. Engine Coolant Surge Tank. See Engine Coolant on
page 5-22.
H. Windshield Washer Fluid Reservoir. See Windshield
Washer Fluid on page 5-32.
5-13
When you open the hood on the 3.6L V6, here is what you will see:
5-14
A. Engine Air Cleaner/Filter. See Engine Air
Cleaner/Filter on page 5-19.
B. Power Steering Fluid Reservoir (Out of View). See
Power Steering Fluid on page 5-31.
C. Engine Oil Fill Cap (Out of View). See “When to Add
Engine Oil” under Engine Oil on page 5-15.
D. Engine Oil Dipstick. See “Checking Engine Oil”
under Engine Oil on page 5-15.
E. Brake Fluid Reservoir. See ″Brake Fluid″ under
Brakes on page 5-33.
F. Underhood Fuse Block. See Engine Compartment
Fuse Block on page 5-103.
G. Remote Positive (+) Terminal. See Jump Starting
on page 5-36.
H. Engine Coolant Recovery Tank. See Cooling System
on page 5-26.
I. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under Windshield Washer Fluid on page 5-32.
Engine Oil Checking Engine Oil It is a good idea to check the engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 5-12 for the location of the engine oil dipstick. 1. Turn off the engine and give the oil several minutes to drain back into the oil pan. If you do not do this, the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level.
5-15
When to Add Engine Oil
See Engine Compartment Overview on page 5-12 for the location of the engine oil fill cap.
If the oil is below the cross-hatched area at the tip of the dipstick, add at least one quart/liter of the recommended oil. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 5-107. Notice: Do not add too much oil. If the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged.
SAE 5W-30 may not appear on all caps.
Be sure to add enough oil to put the level somewhere in the proper operating range in the cross-hatched area. Push the dipstick all the way back in when you are through.
5-16
What Kind of Engine Oil to Use
below −20°F (−29°C), it is recommended that you use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both will provide easier cold starting and better protection for the engine at extremely low temperatures. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.
(cid:127) American Petroleum Institute (API) starburst symbol
Oils meeting these requirements should have the starburst symbol on the container. This symbol indicates that the oil has been certified by the American Petroleum Institute (API).
Look for three things: (cid:127) GM6094M
Your vehicle’s engine requires oil meeting GM Standard GM6094M. Look for and use only an oil that meets GM Standard GM6094M.
(cid:127) SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. If you are in an area of extreme cold, where the temperature falls
Look for this information on the oil container, and use only those oils that are identified as meeting GM Standard GM6094M and have the starburst symbol on the front of the oil container. Notice: Use only engine oil identified as meeting GM Standard GM6094M and showing the American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty.
5-17
Engine Oil Additives Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you need for good performance and engine protection.
Engine Oil Life System When to Change Engine Oil Your vehicle has a computer system that lets you know when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil life system to work properly, you must reset the system every time the oil is changed. When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A change engine oil light and a CHANGE ENGINE OIL SOON message will come on. Change the oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset.
Your dealer/retailer has trained service people who will perform this work using genuine parts and reset the system. It is also important to check the oil regularly and keep it at the proper level. If the system is ever reset accidentally, you must change the oil at 3,000 miles (5 000 km) since the last oil change. Remember to reset the oil life system whenever the oil is changed. How to Reset the Engine Oil Life System The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where you change the oil prior to a change engine oil light or CHANGE ENGINE OIL SOON message being turned on, reset the system. 1. Turn the ignition key to ON/RUN with the
engine off.
2. Fully press and release the accelerator pedal three
times within five seconds. The change engine oil light will flash while the system is resetting.
3. When the light stops flashing, turn the key to
LOCK/OFF.
5-18
If the light or message comes back on and stays on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure. What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer’s warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of used oil, ask your dealer/retailer, a service station, or a local recycling center for help.
Engine Air Cleaner/Filter
The engine air cleaner/filter is located in the engine
compartment on the passenger’s side of the vehicle.
See Engine Compartment Overview on page 5-12
for more information on location.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the Maintenance II
intervals and replace it at the first oil change after each
50,000 mile (80 000 km) interval. See Scheduled
Maintenance on page 6-4 for more information. If you
are driving in dusty/dirty conditions, inspect the filter
at each engine oil change.
5-19
3. Loosen the screws on the clamps holding the air
outlet duct in place. Do not pry the clamps off.
How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter, do the following: 1. Turn off the engine.
4. Remove the air outlet duct. 5. Undo the clamps on the filter cover. To remove the
cover, pull up on the front and then pull the cover out.
6. Inspect or replace the engine air cleaner/filter.
Wipe all dust from inside of the housing and inspect the air cleaner and air outlet duct for cracks, cuts, and deterioration. The air outlet duct must be replaced if damaged.
7. Reinstall the filter cover and latch the clamps.
2. Disconnect the air flow sensor electrical connector.
5-20
8. Reattach the air outlet duct and tighten the screws
on the clamps that hold the duct in place.
9. Reconnect the air flow sensor electrical connector.
{CAUTION:
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. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off.
Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving.
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 your vehicle to the dealer/retailer and have it repaired as soon as possible. Change the fluid and filter at the intervals listed in Additional Required Services on page 6-6, and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 6-12. Notice: Use of the incorrect automatic transmission fluid may damage your vehicle, and the damages may not be covered by your warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 6-12. For the 3.6L engine, 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 your vehicle to your dealer/retailer.
5-21
Engine Coolant The cooling system in your vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in your vehicle for five years or 150,000 miles (240 000 km), whichever occurs first, if you add only DEX-COOL® extended life coolant. The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see Engine Overheating on page 5-24. A 50/50 mixture of clean, drinkable water and DEX-COOL® coolant will: (cid:127) Give freezing protection down to −34°F (−37°C). (cid:127) Give boiling protection up to 265°F (129°C). (cid:127) Protect against rust and corrosion. (cid:127) Help keep the proper engine temperature.
Let the warning lights and gages work as they should.
Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant may require changing sooner, at the first maintenance service after each 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL® (silicate-free) coolant in your vehicle.
5-22
What to Use Use a mixture of one-half clean, drinkable water and one-half DEX-COOL® coolant which will not damage aluminum parts. If you use this coolant mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to the cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. The vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant.
If you use an improper coolant mixture, your
Notice: engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core, and other parts.
(cid:127) If you have to add coolant more than four times a year, have your dealer/retailer check your cooling system. Notice: If you use extra inhibitors and/or additives in your vehicle’s cooling system, you could damage your vehicle. Use only the proper mixture of the engine coolant listed in this manual for the cooling system. See Recommended Fluids and Lubricants on page 6-12 for more information. Checking Coolant
{CAUTION:
Turning the surge tank pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. Never turn the surge tank pressure cap — even a little — when the engine and radiator are hot.
The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the COLD FILL line. When your engine is warm, the level should be at the COLD FILL line or a little higher.
The surge tank is located on the driver’s side of the engine compartment. See Engine Compartment Overview on page 5-12 for more information on location.
5-23
Adding Coolant If you need more coolant, add the proper DEX-COOL® coolant mixture at the surge tank, but only when the engine is cool.
{CAUTION:
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.
When replacing the pressure cap, make sure it is hand-tight and fully seated.
Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel. See Engine Coolant
Temperature Gage on page 3-33. There are several
different types of engine overheating messages that may
be displayed in the Driver Information Center (DIC).
See DIC Warnings and Messages on page 3-49
5-24
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when the vehicles engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle until the engine is cool. See Overheated Engine Protection Operating Mode on page 5-26 for information on driving to a safe place in an emergency.
If your engine catches fire because you keep
Notice: driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. See Overheated Engine Protection Operating Mode on page 5-26 for information on driving to a safe place in an emergency.
If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about ten minutes. If the warning does not come back on, you can drive normally. If the warning continues and you have not stopped, pull over, stop, and park your vehicle right away. If there is still no sign of steam, you can idle the engine for three minutes while you are parked. If you still have the warning, turn off the engine and get everyone out of the vehicle until it cools down. Also, see “Overheated Engine Protection Operating Mode” later in this section. You may decide not to lift the hood but to get service help right away.
If No Steam Is Coming From Your Engine An overheat warning can indicate a serious problem. If you get an engine overheat warning, but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: (cid:127) Climb a long hill on a hot day. (cid:127) Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer.
If you get the overheat warning with no sign of steam, try this for a minute or so: 1. If the air conditioner is on, turn it off. 2. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
3. Try to minimize engine load. If you are in a traffic jam, shift to NEUTRAL (N); otherwise, shift to the highest gear while driving.
5-25
(cid:127) (cid:127) Cooling System When you decide it is safe to lift the hood, here is what you will see:
A. Electric Engine Cooling Fans B. Coolant Surge Tank
Overheated Engine Protection Operating Mode This emergency operating mode lets your vehicle be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, there is a significant loss in power and engine performance. The temperature gage indicates an overheat condition exists. Driving extended distances and/or towing a trailer in the overheat protection mode should be avoided. Notice: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss, change the oil and reset the oil life system. See Engine Oil on page 5-15.
5-26
{CAUTION:
CAUTION:
(Continued)
An electric engine cooling fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing, and tools away from any underhood electric fan.
If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. The vehicle should be parked on a level surface. The coolant level should be at the COLD FILL line. If it is not, you may have a leak at the radiator hoses, heater hoses, radiator, water pump, or somewhere else in the cooling system.
{CAUTION:
Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned.
CAUTION:
(Continued)
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.
If there seems to be no leak, with the engine on, check to see if the electric engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, your vehicle needs service. Turn off the engine. Notice: Engine damage from running your engine without coolant is not covered by your warranty. See Overheated Engine Protection Operating Mode on page 5-26 for information on driving to a safe place in an emergency. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by the warranty. Always use DEX-COOL® (silicate-free) coolant in the vehicle.
5-27
How to Add Coolant to the Coolant Surge Tank Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause your engine to overheat and be severely damaged. If you have not found a problem yet, check to see if coolant is visible in the surge tank. If coolant is visible but the coolant level is not at the COLD FILL line, add a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it.
{CAUTION:
Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the coolant surge tank pressure cap — even a little — they can come out at high speed. Never turn thecap when the cooling system, including the coolant surge tank pressure cap, is hot. Wait for the cooling system and coolant surge tank pressure cap to cool if you ever have to turn the pressure cap.
5-28
{CAUTION:
{CAUTION:
Adding only plain water to the cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. The vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant.
In cold weather, water can freeze and crack
Notice: the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture.
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.
1. You can remove the
coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise about one-quarter of a turn. If you hear a hiss, wait for that to stop. This will allow any pressure still left to be vented out the discharge hose.
2. Then keep turning the pressure cap slowly, and
remove it.
5-29
3. Fill the coolant surge tank with the proper
DEX-COOL® coolant mixture, to the COLD FILL line.
4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fans. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper DEX-COOL® coolant mixture to the coolant surge tank until the level reaches the COLD FILL line.
5-30
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight.
6. After driving the vehicle, check the level in the surge tank again when the cooling system has cooled down.
If the coolant is not at the proper level, repeat Steps 1
through 3 and reinstall the pressure cap. If the coolant is
not at the proper level when the system cools down
again, see your dealer/retailer.
Power Steering Fluid
See Engine Compartment Overview on page 5-12 for reservoir location.
When to Check Power Steering Fluid Power steering fluid is used in all vehicles with the 3.6L V6 engine. Vehicles with the 3.4L V6 engine have electric power steering and do not use power steering fluid. It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. How to Check Power Steering Fluid To check the power steering fluid, do the following: 1. Turn the key off and let the engine compartment
cool down.
2. Wipe the cap and the top of the reservoir clean. 3. Unscrew the cap and wipe the dipstick with a
clean rag.
4. Replace the cap and completely tighten it. 5. Remove the cap again and look at the fluid level on
the dipstick.
The fluid level should be between the Min (Minimum) and Max (Maximum) marks when the engine is cold, and at the Max mark when the engine is hot. If the fluid is at the Min mark when the engine is cold or hot, power steering fluid should be added.
5-31
What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 6-12. Always use the proper fluid. Notice: Use of the incorrect fluid may damage your vehicle and the damages may not be covered by your warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants on page 6-12.
Windshield Washer Fluid What to Use When you need windshield or rear window washer fluid be sure to read the instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.
Adding Windshield Washer Fluid
Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 5-12 for reservoir location.
Notice: (cid:127) When using concentrated washer fluid,
follow the manufacturer’s instructions for adding water.
(cid:127) Do not mix water with ready-to-use washer fluid.
Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water does not clean as well as washer fluid. Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.
(cid:127) Do not use engine coolant (antifreeze) in your windshield washer. It can damage the vehicle’s windshield washer system and paint.
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(cid:127) Brakes Brake Fluid
The brake master cylinder reservoir is filled with DOT-3 brake fluid. See Engine Compartment Overview on page 5-12 for the location of the reservoir.
There are only two reasons why the brake fluid level in the reservoir might go down. The first is that the brake fluid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake hydraulic system. If it is, you should have the brake hydraulic system fixed, since a leak means that sooner or later the brakes will not work well.
It is not a good idea to top off the brake fluid. Adding brake fluid will not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove brake fluid, as necessary, only when work is done on the brake hydraulic system.
{CAUTION:
If your vehicle has too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system.
When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light on page 3-31.
5-33
What to Add When you need brake fluid, use only DOT-3 brake fluid. Use new brake fluid from a sealed container only. See Recommended Fluids and Lubricants on page 6-12. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir.
{CAUTION:
With the wrong kind of fluid in the brake hydraulic system, the brakes might not work well. This could cause a crash. Always use the proper brake fluid.
If you spill brake fluid on your vehicle’s painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on your vehicle. If you do, wash it off immediately. See Washing Your Vehicle on page 5-94.
Brake Wear Your vehicle has disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be heard all the time your vehicle is moving, except when you are pushing on the brake pedal firmly.
{CAUTION:
Notice: (cid:127) Using the wrong fluid can badly damage brake hydraulic system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake hydraulic system can damage brake hydraulic system parts so badly that they will have to be replaced. Do not let someone put in the wrong kind of fluid.
The brake wear warning sound means that soon the brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced.
Notice: Continuing to drive with worn-out brake pads could result in costly brake repair.
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(cid:127) Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to torque specifications in Capacities and Specifications on page 5-107. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer/retailer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required. Brake Adjustment Every time you apply the brakes, with or without the vehicle moving, the brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality brake parts. When you replace parts of the braking system — for
example, when the brake linings wear down and you need new ones put in — be sure you get new approved replacement parts. If you do not, the brakes might not work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between the front and rear brakes can change — for the worse. The braking performance you have come to expect can change in many other ways if someone puts in the wrong replacement brake parts. Battery Your vehicle has a maintenance free battery. When it is time for a new battery, see your dealer/retailer for one that has the replacement number shown on the original battery’s label. For battery replacement, see your dealer/retailer or the service manual. To purchase a service manual, see Service Publications Ordering Information on page 7-15. Warning: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.
5-35
Vehicle Storage
{CAUTION:
Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 5-36 for tips on working around a battery without getting hurt.
Infrequent Usage: If you drive your vehicle infrequently, remove the black, negative (−) cable from the battery. This will help keep the battery from running down. Extended Storage: For extended storage of your vehicle, remove the black, negative (−) cable from the battery or use a battery trickle charger. This will help maintain the charge of the battery over an extended period of time. You must close all doors and the liftgate before reconnecting the battery. After reconnecting the battery, you must press the unlock button on the keyless access transmitter. Failure to follow this procedure could result in the alarm sounding. Pressing unlock on the keyless access transmitter will stop the alarm.
5-36
Jump Starting If your battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely.
{CAUTION:
Batteries can hurt you. They can be dangerous because:
(cid:127) They contain acid that can burn you. (cid:127) They contain gas that can explode or ignite. (cid:127) They contain enough electricity to burn you.
If you do not follow these steps exactly, some or all of these things can hurt you.
Ignoring these steps could result in costly
Notice: damage to your vehicle that would not be covered by your warranty. Trying to start your vehicle by pushing or pulling it will not work, and it could damage your vehicle. 1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
If the other vehicle’s system is not a 12-volt
Notice: system with a negative ground, both vehicles can be damaged. Only use vehicles with 12-volt systems with negative grounds to jump start your vehicle.
2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles are not touching each other. If they are, it could cause a ground connection you do not want. You would not be able to start your vehicle, and the bad grounding could damage the electrical systems. To avoid the possibility of the vehicles rolling, set the parking brake firmly on both vehicles involved in the jump start procedure. Put an automatic transmission in PARK (P) or a manual transmission in NEUTRAL before setting the parking brake.
If you leave your radio or other accessories
Notice: on during the jump starting procedure, they could be damaged. The repairs would not be covered by your warranty. Always turn off your radio and other accessories when jump starting your vehicle. 3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette lighter or the accessory power outlet. Turn off the radio and all lamps that are not needed. This will avoid sparks and help save both batteries. And it could save your radio!
4. Open the hoods and locate the positive (+) and negative (−) terminal locations on each vehicle. You will not need to access your battery for jump starting. Your vehicle has a remote positive (+) and a remote negative (−) jump starting terminal for that purpose.
The remote positive (+) terminal is located under the engine compartment fuse block cover, and is marked with a plus (+) symbol on the cover. To remove the fuse block cover, push in the two locking tabs located on the rear of the cover, and lift. To reinstall, fit together the tabs located on the front of the cover and push down on the cover until the tabs on the rear of the cover, click into place.
5-37
3.4L V6 Engine
3.6L V6 Engine
The remote negative (−) terminal is located in the
front of the engine compartment, near the engine
oil dipstick.
See Engine Compartment Overview on page 5-12
for more information on the location of the remote
positive (+) terminal and the engine oil dipstick.
5-38
{CAUTION:
CAUTION:
(Continued)
An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.
{CAUTION:
Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. CAUTION:
(Continued)
Be sure the battery has enough water. You do not need to add water to the battery installed in your new vehicle. But if a battery has filler caps, be sure the right amount of fluid is there. If it is low, add water to take care of that first. If you do not, explosive gas could be present. Battery fluid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately.
{CAUTION:
Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running.
5-39
5. Check that the jumper cables do not have loose or
missing insulation. If they do, you could get a shock. The vehicles could be damaged, too. Before you connect the cables, here are some basic things you should know. Positive (+) will go to positive (+) or to a remote positive (+) terminal if the vehicle has one. Negative (−) will go to a heavy, unpainted metal engine part or to a remote negative (−) terminal if the vehicle has one. Do not connect positive (+) to negative (−) or you will get a short that would damage the battery and maybe other parts, too. And do not connect the negative (−) cable to the negative (−) terminal on the dead battery because this can cause sparks.
6. Connect the red positive (+) cable to the positive (+)
terminal of the dead battery. Use a remote positive (+) terminal if the vehicle has one.
7. Do not let the other end touch metal. Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one.
8. Now connect the black negative (−) cable to the negative (−) terminal of the good battery. Use a remote negative (−) terminal if the vehicle has one.
Do not let the other end touch anything until the next step. The other end of the negative (−) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part or to a remote negative (−) terminal on the vehicle with the dead battery.
9. Connect the other end of the negative (−) cable at
least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less. Your vehicle has a remote negative (−) terminal for this purpose.
10. Now start the vehicle with the good battery and run
the engine for a while.
11. Press the unlock button on the remote keyless
entry transmitter to disarm your content theft-deterrent system.
12. Try to start the vehicle that had the dead battery.
If it will not start after a few tries, it probably needs service.
5-40
If the jumper cables are connected or
Notice: removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by your warranty. Always connect and remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal.
To disconnect the jumper cables from both vehicles, do the following: 1. Disconnect the black negative (−) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
5. Return the fuse block cover to its original position.
Jumper Cable Removal
A. Heavy, Unpainted Metal Engine Part or Remote
Negative (−) Terminal
B. Good Battery or Remote Positive (+) and Remote
Negative (−) Terminals
C. Dead Battery or Remote Positive (+) Terminal
5-41
How to Check Lubricant
All-Wheel Drive If you have an all-wheel-drive vehicle, be sure to perform the lubricant checks described in this section. However, there are two additional systems that need lubrication. Transfer Case (Power Transfer Unit) When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See Scheduled Maintenance on page 6-4.
To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole, located on the transfer case. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12.
5-42
Carrier Assembly-Differential (Rear Drive Module) When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Scheduled Maintenance on page 6-4. How to Check Lubricant
AWD Differential Case for 3.4L V6 Model
A. Fill Plug B. Drain Plug
AWD Differential Case for 3.6L V6 Model
A. Fill Plug B. Drain Plug To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole. A fluid loss could indicate a problem; check and have it repaired, if needed.
5-43
What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if your vehicle is damaged in a crash, the headlamp aim may be affected. Aim adjustment to the low-beam headlamps may be necessary if oncoming drivers flash their high-beam headlamps at you (for vertical aim). If the headlamps need to be re-aimed, it is recommended that you take the vehicle to your dealer/retailer for service.
Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 5-50. For any bulb changing procedure not listed in this section, contact your dealer/retailer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.
5-44
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
To replace one of these bulbs:
1. Open the hood. See Hood Release on page 5-11
for more information.
3. Gently pull the radiator cover/front grill toward you and pull the front grill trim bar away from the headlamp lens.
The front grill bar is attached to the headlamp lens with a hidden clip.
2. Carefully pry out the center of the push pins from
the top of the radiator cover.
5-45
tj;3
4. Remove the three headlamp assembly attachment
screws.
5. Pull the radiator cover/front grill toward you and pull
the headlamp assembly up and out from the vehicle.
A. Parking Lamp B. Sidemarker Lamp
C. Low/High-Beam
Headlamp
D. Turn Signal Lamp
5-46
6. Press the clip (A) on
the electrical connector when replacing the low-beam or high-beam bulb, then pull it straight off.
Turn the bulb retaining ring (B) counterclockwise to remove it and then pull the bulb assembly straight out. For all other bulbs, turn the socket counterclockwise and pull it out from the headlamp assembly. Pull the bulb straight out from the socket.
7. Push the new bulb into the socket and reinstall the
socket into the headlamp assembly by turning it clockwise. For the low-beam or high-beam bulb, install the new bulb being sure to align the notches in the bulb with the notches in the headlamp assembly.
8. Place the retaining ring over the bulb/socket and
turn it clockwise to tighten it and secure the bulb/socket.
9. Connect the electrical connector. 10. Reverse Steps 1 through 5 to reinstall the headlamp
assembly.
5-47
Taillamps, Turn Signal, Stoplamps and Back-up Lamps
A. Turn Signal
Lamp/Taillamp
B. Stoplamp/Taillamp C. Sidemarker Lamp D. Back-Up Lamp
To replace one of these bulbs:
1. Open the liftgate. See Liftgate on page 2-13 for
more information.
2. Remove the taillamp
screw covers and then remove the two screws.
3. Carefully slide the taillamp assembly outward to clear the stud (see arrow) and then rearward and away from the body of the vehicle.
5-48
4. Turn the bulb socket counterclockwise to disconnect
it from the taillamp assembly.
5. Pull the bulb out of the bulb socket. 6. Push the new bulb into the bulb socket. 7. Insert the bulb socket into the taillamp housing and
turn it clockwise to secure.
8. Reverse Steps 2 and 3 to reinstall the taillamp
assembly.
License Plate Lamp To replace one of these bulbs: 1. Remove the two screws holding each of the license
plate lamps to the liftgate handle.
2. Turn and pull the license plate lamp down through
the liftgate opening.
3. Turn the bulb socket counterclockwise and pull the
bulb straight out of the socket.
4. Install the new bulb. 5. Reverse Steps 1 through 3 to reinstall the license
plate lamp.
5-49
Replacement Bulbs
Exterior Lamp
Bulb Number
Back-Up Lamp Front Parking Lamp Front Sidemarker Lamp Front Turn Signal Lamp License Plate Lamp Low/High-Beam Lamp Rear Sidemarker Lamp Rear Turn Signal Lamp/Taillamp Stoplamp/Taillamp
921
194 N/A
168
1156 N/A
9421330
9007
W5W
1157
1157
For replacement bulbs not listed here, contact your dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
and cracking. See Scheduled Maintenance on page 6-4
for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
see Maintenance Replacement Parts on page 6-14.
5-50
To replace the windshield wiper blade assembly do the following: 1. Lift the wiper arm away from the windshield.
2. Push the release lever (B) to disengage the hook and push the wiper arm (A) out of the blade (C). 3. Push the new wiper blade securely on the wiper
arm until you hear the release lever click into place.
To replace the rear window wiper blade do the following: 1. Lift the wiper blade arm straight toward you. 2. Push the blade release button and slide the whole
blade to the right to remove.
3. Install the new blade. 4. Push the wiper blade arm back into place.
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CAUTION:
(Continued)
(cid:127) Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when you hit a pothole. Keep tires at the recommended pressure.
(cid:127) Worn, old tires can cause accidents.
If your tread is badly worn, or if your tires have been damaged, replace them.
See High-Speed Operation on page 5-61 for inflation pressure adjustment for high speed driving.
Tires Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your vehicle Warranty booklet for details.
{CAUTION:
(cid:127) Poorly maintained and improperly
used tires are dangerous.
(cid:127) Overloading your tires can cause
overheating as a result of too much flexing. You could have an air-out and a serious accident. See Loading Your Vehicle on page 4-22.
(cid:127) Underinflated tires pose the same
danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure.Tire pressure should be checked when your tires are cold. See Inflation - Tire Pressure on page 5-59.
CAUTION:
(Continued)
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Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples below show a typical passenger vehicle tire and a compact spare tire sidewall.
Passenger (P-Metric) Tire Example
(A) Tire Size: The tire size is a combination of letters and numbers used to define a particular tire’s width, height, aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines. (C) DOT (Department of Transportation): The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. (D) Tire Identification Number (TIN): The letters and numbers following DOT (Department of Transportation) code is the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. (E) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (F) Uniform Tire Quality Grading (UTQG): Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. For more information see Uniform Tire Quality Grading on page 5-71.
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(G) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.
Compact Spare Tire Example
(A) Temporary Use Only: The compact spare tire or temporary use tire has a tread life of approximately 3,000 miles (5 000 km) and should not be driven at speeds over 65 mph (105 km/h). The compact spare tire is for emergency use when a regular road tire has lost air and gone flat.
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If your vehicle has a compact spare tire, see Compact Spare Tire on page 5-88 and If a Tire Goes Flat on page 5-75. (B) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (C) Tire Identification Number (TIN): The letters and numbers following the DOT (Department of Transportation) code is the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. (D) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load. (E) Tire Inflation: The temporary use tire or compact spare tire should be inflated to 60 psi (420 kPa). For more information on tire pressure and inflation see Inflation - Tire Pressure on page 5-59. (F) Tire Size : A combination of letters and numbers define a tire’s width, height, aspect ratio, construction type, and service description. The letter T as the first character in the tire size means the tire is for temporary use only.
(G) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines. Tire Size The following illustration shows an example of a typical passenger vehicle tire size.
(A) Passenger (P-Metric) Tire: The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.
(B) Tire Width: The three-digit number indicates the tire section width in millimeters from sidewall to sidewall. (C) Aspect Ratio: A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 60, as shown in item C of the illustration, it would mean that the tire’s sidewall is 60 percent as high as it is wide. (D) Construction Code: A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction. (E) Rim Diameter: Diameter of the wheel in inches. (F) Service Description: These characters represent the load range and speed rating of the tire. The load index represents the load carry capacity a tire is certified to carry. The load index can range from 1 to 279. The speed rating is the maximum speed a tire is certified to carry a load. Speed ratings range from A to Z.
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Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight: This means the combined weight of optional accessories. Some examples of optional accessories are, automatic transmission, power steering, power brakes, power windows, power seats, and air conditioning. Aspect Ratio: The relationship of a tire’s height to its width. Belt: A rubber coated layer of cords that is located between the plies and the tread. Cords may be made from steel or other reinforcing materials. Bead: The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim.
Bias Ply Tire: A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread. Cold Tire Pressure: The amount of air pressure in a tire, measured in pounds per square inch (psi) or kilopascals (kPa) before a tire has built up heat from driving. See Inflation - Tire Pressure on page 5-59. Curb Weight: The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo. DOT Markings: A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S. Department of Transportation (DOT) motor vehicle safety standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production.
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GVWR: Gross Vehicle Weight Rating. See
Loading Your Vehicle on page 4-22.
GAWR FRT: Gross Axle Weight Rating for the
front axle. See Loading Your Vehicle
on page 4-22.
GAWR RR: Gross Axle Weight Rating for the rear
axle. See Loading Your Vehicle on page 4-22.
Intended Outboard Sidewall: The side of
an asymmetrical tire, that must always face
outward when mounted on a vehicle.
Kilopascal (kPa): The metric unit for air pressure.
Light Truck (LT-Metric) Tire: A tire used on
light duty trucks and some multipurpose passenger
vehicles.
Load Index: An assigned number ranging from 1
to 279 that corresponds to the load carrying
capacity of a tire.
Maximum Inflation Pressure: The maximum air pressure to which a cold tire can be inflated. The maximum air pressure is molded onto the sidewall. Maximum Load Rating: The load rating for a tire at the maximum permissible inflation pressure for that tire. Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight. Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 150 lbs (68 kg). See Loading Your Vehicle on page 4-22. Occupant Distribution: Designated seating positions.
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Outward Facing Sidewall: The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire. Passenger (P-Metric) Tire: A tire used on passenger cars and some light duty trucks and multipurpose vehicles. Recommended Inflation Pressure: Vehicle manufacturer’s recommended tire inflation pressure as shown on the tire placard. See Inflation - Tire Pressure on page 5-59 and Loading Your Vehicle on page 4-22. Radial Ply Tire: A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread.
Rim: A metal support for a tire and upon which the tire beads are seated. Sidewall: The portion of a tire between the tread and the bead. Speed Rating: An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate. Traction: The friction between the tire and the road surface. The amount of grip provided. Tread: The portion of a tire that comes into contact with the road. Treadwear Indicators: Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1/16 inch (1.6 mm) of tread remains. See When It Is Time for New Tires on page 5-68.
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UTQGS (Uniform Tire Quality Grading Standards): A tire information system that provides consumers with ratings for a tire’s traction, temperature, and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading on page 5-71. Vehicle Capacity Weight: The number of designated seating positions multiplied by 150 lbs (68 kg) plus the rated cargo load. See Loading Your Vehicle on page 4-22. Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight. Vehicle Placard: A label permanently attached to a vehicle showing the vehicle’s capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Loading Your Vehicle on page 4-22.
Inflation - Tire Pressure Tires need the correct amount of air pressure to operate effectively. Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not have enough air (under-inflation), you can get the following: (cid:127) Too much flexing (cid:127) Too much heat (cid:127) Tire overloading (cid:127) Premature or irregular wear (cid:127) Poor handling (cid:127) Reduced fuel economy If your tires have too much air (over-inflation), you can get the following: (cid:127) Unusual wear (cid:127) Poor handling (cid:127) Rough ride (cid:127) Needless damage from road hazards
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A vehicle specific Tire and Loading Information label is attached to your vehicle. This label shows your vehicle’s original equipment tires and the correct inflation pressures for your tires when they are cold. The recommended cold tire inflation pressure, shown on the label, is the minimum amount of air pressure needed to support your vehicle’s maximum load carrying capacity. For additional information regarding how much weight your vehicle can carry, and an example of the Tire and Loading Information label, see Loading Your Vehicle on page 4-22. How you load your vehicle affects vehicle handling and ride comfort. Never load your vehicle with more weight than it was designed to carry. When to Check Check your tires once a month or more. Do not forget to check the compact spare tire, it should be at 60 psi (420 kPa). For additional information regarding the compact spare tire, see Compact Spare Tire on page 5-88.
How to Check Use a good quality pocket-type gage to check tire pressure. You cannot tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they are