Cleaning the Components
Use care when touching or cleaning the componentssuch as the DVD player or the discs.
Do not use DVD lens cleaners for DVD players becausethe lens of the DVD optics can become contaminatedby lubricants.
Handle CDs and DVDs carefully. Store them in theiroriginal cases or other protective cases and away fromdirect sunlight and dust. The DVD player scans thebottom surface of the disc. If the surface of a CD orDVD is damaged, such as cracked, broken,or scratched, the CD or DVD may not play properly ornot at all. If the surface of a CD or DVD is soiled, take asoft, lint free cloth or dampen a clean, soft cloth in amild, neutral detergent solution mixed with water, andclean it. Make sure the wiping process starts from thecenter to the edge.
Do not touch the bottom side of a CD or DVD whilehandling it; this could damage the surface. Pick up CDsor DVDs by grasping the outer edges or the edge of thehole and the outer edge.
Rear Seat Audio (RSA)
Vehicles with this feature allow the rear seatpassengers to listen to and control any of the musicsources: radio, CDs, DVDs, or other auxiliary sources.The rear seat passengers can control the same musicsources the front seat passengers are listening to (dualcontrol) or a different source. For example, rear seatpassengers can listen to and control a CD through theheadphones, while the driver listens to the radio throughthe speakers. The rear seat passengers have control ofthe volume for each set of headphones.
The radio functionality is controlled by both the RSAand the front radio, only one band can be tuned to atone time. Changing the band on the RSA or the frontradio will change band on the other system.
RSA functions can be operated even when the mainradio is off.
Audio can be heard through wired headphones(not included) plugged into the jacks on the RSA.If the vehicle has this feature, audio can also beheard on Channel 2 of the wireless headphones.
The audio system allows the rear speakers to continueplaying even when the RSA audio is active through theheadphones.
4-103
Handling the DVD Map Disc
When handling the DVD map disc, be careful of thefollowing:
.Handle the disc very carefully to avoidcontamination or flaws. Signals may not read outproperly if the disc gets contaminated or flawed.
.If the disc gets soiled, use a soft cloth to gentlywipe it out from the center of the disc to theoutside. Do not use photographic record cleaner,solvents, or other cleaners.
.Do not use the disc to rest on while writing ordrawing using any writing utensil or attach a seal toany of the sides or the disc.
.Do not keep the disc in direct sunlight, hightemperatures, or humidity.
.After using the disc, place it back into theoriginal case.
Map Adjustments
The system lets you adjust the scale of view on themap. Also, as you drive, the map scrolls automaticallybased on the direction of travel.
Map Scales
+/!(Zoom In/Zoom Out) :Touch the zoom in or outscreen buttons or the scale on the bar to change thelevel of map detail. The scale appears on the screenonce the zoom in or zoom out screen buttons areselected. The system adjusts the map accordingly.The scale of a map can range from 1/32 mi. (50 m)to 256 mi. (400 km). To change English or metric, seeDIC Operation and Displayson page 4!41for moreinformation.
5-16
A message to safely remove the device displays.
Care of Your CDs and DVDs
If playing recorded media such as a CD or DVD, thesound quality may be reduced due to CD or DVDquality, the method of recording, the quality of the musicthat has been recorded, recording speed, max mediarecording speed, and the way the CD or DVD has beenhandled. There may be an increase in skipping,difficulty in finding tracks, and/or difficulty in loading andejecting. If these problems occur, check the bottomsurface of the CD or DVD. If the surface is damaged,such as cracked, broken, or scratched, it will not playproperly. If the surface is soiled, see“Care of Your CDsand DVDs”in the Index of the vehicle's owner manual.
If there is no apparent damage, try a known goodCD or DVD.
Notice:If a label is added to a CD or DVD, ormore than one CD or DVD is inserted into theslot at a time, or an attempt is made to playscratched or damaged CDs or DVDs, the playercould be damaged. While using the CD or DVDplayer, use only CDs or DVDs in good conditionwithout any label, load one CD or DVD at a time, andkeep the player and the loading slot free of foreignmaterials, liquids, and debris.
5-84
Other Rainy Weather Tips
Besides slowing down, other wet weather drivingtips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping equipment in good shape.
.Keep the windshield washer fluid reservoir filled.
.Have good tires with proper tread depth.SeeTires on page 7!58.
.Turn off cruise control.
Before Leaving on a Long Trip
To prepare your vehicle for a long trip, consider havingit serviced by your dealer/retailer before departing.
Things to check on your own include:
.Windshield Washer Fluid:Reservoir full?Windows clean—inside and outside?
.Wiper Blades:In good shape?
.Fuel, Engine Oil, Other Fluids:All levels checked?
.Lamps:Do they all work and are lenses clean?
.Tires:Are treads good? Are tires inflated torecommended pressure?
.Weather and Maps:Safe to travel?Have up-to-date maps?
Highway Hypnosis
Always be alert and pay attention to your surroundingswhile driving. If you become tired or sleepy, find a safeplace to park your vehicle and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep interior temperature cool.
.Keep your eyes moving—scan the roadahead and to the sides.
.Check the rearview mirror and vehicleinstruments often.
6-26
Driving On Grades
Reduce speed and shift to a lower gearbeforestartingdown a long or steep downgrade. If the transmission isnot shifted down, the brakes might get hot and nolonger work well.
Vehicles can tow in D (Drive). Shift the transmission toa lower gear if the transmission shifts too often underheavy loads and/or hilly conditions.
The tow/haul mode may be used if the transmissionshifts too often. SeeTow/Haul Mode on page 3!36.
When towing at high altitude on steep uphill grades,consider the following: Engine coolant will boil at alower temperature than at normal altitudes. If the engineis turned off immediately after towing at high altitude onsteep uphill grades, the vehicle may show signs similarto engine overheating. To avoid this, let the engine runwhile parked, preferably on level ground, with theautomatic transmission in P (Park) for a few minutesbefore turning the engine off. If the overheat warningcomes on, seeEngine Overheating on page 7!34.
Parking on Hills
{WARNING:
Parking the vehicle on a hill with the trailer
attached can be dangerous. If something goes
wrong, the rig could start to move. People can be
injured, and both the vehicle and the trailer can be
damaged. When possible, always park the rig on
a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift intoP (Park) yet. Turn the wheels into the curb if facingdownhill or into traffic if facing uphill.
2. Have someone place chocks under the trailerwheels.
3. When the wheel chocks are in place, release theregular brakes until the chocks absorb the load.
6-52
4. Reapply the brake pedal. Then apply the parkingbrake and shift into P (Park).
5. Release the brake pedal.
{WARNING:
It can be dangerous to get out of the vehicle if the
shift lever is not fully in P (Park) with the parking
brake firmly set. The vehicle can roll.
If the engine has been left running, the vehicle
can move suddenly. You or others could be
injured. To be sure the vehicle will not move, even
when on fairly level ground, always put the shift
lever fully in P (Park) with the parking brake
firmly set.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine
3. Shift into a gear
4. Release the parking brake
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. Stop and have someone pick up and storethe chocks.
Maintenance When Trailer Towing
The vehicle needs service more often when pulling atrailer. See this manual's Maintenance Schedule orIndex for more information. Things that are especiallyimportant in trailer operation are automatic transmissionfluid, engine oil, axle lubricant, belts, cooling systemand brake system. It is a good idea to inspect thesebefore and during the trip.
Check periodically to see that all hitch nuts and boltsare tight.
6-53
Section 7 Service and Appearance Care
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Accessories and Modifications . . . . . . . . . . . . . . . . . . 7-4California Proposition 65 Warning . . . . . . . . . . . . . . . 7-5California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5Doing Your Own Service Work . . . . . . . . . . . . . . . . . . 7-6Adding Equipment to the Outside of theVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7Gasoline Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8Gasoline Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 7-8California Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9Fuel E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . . . 7-9Fuels in Foreign Countries . . . . . . . . . . . . . . . . . . . . . 7-10Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11Filling a Portable Fuel Container . . . . . . . . . . . . . . . 7-13
Checking Things Under the Hood. . . . . . . . . . . . . . . 7-14Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15Engine Compartment Overview . . . . . . . . . . . . . . . . 7-16Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 7-20Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 7-22
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . 7-24Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29Engine Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34Overheated Engine ProtectionOperating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37Engine Fan Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37Power Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38Windshield Washer Fluid . . . . . . . . . . . . . . . . . . . . . . 7-39Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
All-Wheel Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49
Rear Axle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-50
Front Axle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-51
Headlamp Aiming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-52
Bulb Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54High Intensity Discharge (HID) Lighting . . . . . . . . 7-54LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55License Plate Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-56Replacement Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-56
7-1
Additives
To provide cleaner air, all gasolines in the United Statesare now required to contain additives that help preventengine and fuel system deposits from forming, allowingthe emission control system to work properly. In mostcases, nothing should have to be added to the fuel.However, some gasolines contain only the minimumamount of additive required to meet U.S. EnvironmentalProtection Agency regulations. To help keep fuelinjectors and intake valves clean, or if the vehicleexperiences problems due to dirty injectors or valves,look for gasoline that is advertised as TOP TIERDetergent Gasoline.
For customers who do not use TOP TIER DetergentGasoline regularly, one bottle of GM Fuel SystemTreatment PLUS, added to the fuel tank at every engineoil change, can help clean deposits from fuel injectorsand intake valves. GM Fuel System Treatment PLUS isthe only gasoline additive recommended by GeneralMotors.
Also, your dealer/retailer has additives that will helpcorrect and prevent most deposit!related problems.
Gasolines containing oxygenates, such as ethers andethanol, and reformulated gasolines might be availablein your area. We recommend that you use thesegasolines, if they comply with the specifications
described earlier. However, E85 (85% ethanol) andother fuels containing more than 10% ethanol mustnot be used in vehicles that were not designed forthose fuels.
Notice:This vehicle was not designed for fuel thatcontains methanol. Do not use fuel containingmethanol. It can corrode metal parts in the fuelsystem and also damage plastic and rubber parts.That damage would not be covered under thevehicle warranty.
Some gasolines that are not reformulated for lowemissions can contain an octane-enhancing additivecalled methylcyclopentadienyl manganese tricarbonyl(MMT); ask the attendant where you buy gasolinewhether the fuel contains MMT. We recommend againstthe use of such gasolines. Fuels containing MMT canreduce the life of spark plugs and the performance ofthe emission control system could be affected. Themalfunction indicator lamp might turn on. If this occurs,return to your dealer/retailer for service.
Fuel E85 (85% Ethanol)
This vehicle can use either unleaded gasoline or85% ethanol fuel (E85). We encourage the use ofE85 in vehicles that are designed to use it. The ethanolin E85 is a“renewable”fuel, meaning it is made fromrenewable sources such as corn and other crops.
7-9