Service............................................................6-3
Accessories and Modifications..........................6-3
California Proposition 65 Warning.....................6-4
California Perchlorate Materials Requirements.....6-4
Doing Your Own Service Work.........................6-4
Adding Equipment to the Outside of the
Vehicle......................................................6-5
Fuel................................................................6-5
Gasoline Octane............................................6-6
Gasoline Specifications....................................6-6
California Fuel...............................................6-6
Additives.......................................................6-7
Fuel E85 (85% Ethanol)..................................6-8
Fuels in Foreign Countries...............................6-9
Filling the Tank............................................6-10
Filling a Portable Fuel Container.....................6-12
Checking Things Under the Hood....................6-12
Hood Release..............................................6-13
Engine Compartment Overview.......................6-14
Engine Oil...................................................6-17
Engine Oil Life System..................................6-20
Engine Air Cleaner/Filter................................6-21
Automatic Transmission Fluid.........................6-23
Cooling System............................................6-24
Engine Coolant.............................................6-25
Engine Overheating.......................................6-28Overheated Engine Protection
Operating Mode........................................6-30
Power Steering Fluid.....................................6-30
Windshield Washer Fluid................................6-32
Brakes........................................................6-33
Battery........................................................6-35
Jump Starting...............................................6-36
Headlamp Aiming...........................................6-40
Bulb Replacement..........................................6-41
Halogen Bulbs..............................................6-41
Taillamps, Turn Signal, Sidemarker, Stoplamps
and Back-up Lamps...................................6-41
License Plate Lamp......................................6-43
Replacement Bulbs.......................................6-43
Windshield Wiper Blade Replacement..............6-44
Tires..............................................................6-44
Tire Sidewall Labeling...................................6-45
Tire Terminology and Definitions.....................6-48
Inflation - Tire Pressure.................................6-51
High-Speed Operation...................................6-52
Tire Pressure Monitor System.........................6-53
Tire Pressure Monitor Operation.....................6-54
Tire Inspection and Rotation...........................6-57
When It Is Time for New Tires.......................6-59
Buying New Tires.........................................6-60
Different Size Tires and Wheels......................6-61
Section 6 Service and Appearance Care
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Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In
most cases, nothing should have to be added to the
fuel. However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations. To help
keep fuel injectors and intake valves clean, or if the
vehicle experiences problems due to dirty injectors or
valves, look for gasoline that is advertised as TOP TIER
Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS is
the only gasoline additive recommended by General
Motors.
Also, your dealer/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:This vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the
vehicle warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of the
emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.
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E85 has less energy per gallon than gasoline, so you
will need to refill the fuel tank more often when
using E85 than when you are using gasoline. SeeFilling
the Tank on page 6-10.
Notice:Some additives are not compatible with E85
fuel and can harm the vehicle’s fuel system. Do not
add anything to E85. Damage caused by additives
would not be covered by the vehicle warranty.
Notice:This vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the
vehicle warranty.Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel might be hard
to find. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not
be covered by the vehicle warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
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Engine Oil Additives / Engine Oil
Flushes
Do not add anything to the oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all that is needed for good performance
and engine protection.
Engine oil system flushes are not recommended and
could cause engine damage not covered by the vehicle
warranty.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates when
to change the engine oil and filter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change is indicated can vary considerably.
For the oil life system to work properly, the system
must be reset every time the oil is changed.When the system has calculated that oil life has been
diminished, it indicates that an oil change is necessary.
A CHANGE OIL SOON message comes on. SeeDIC
Warnings and Messages on page 4-42. Change
the oil as soon as possible within the next 600 miles
(1 000 km). It is possible that, if driving under the best
conditions, the oil life system might not indicate that
an oil change is necessary for over a year. However, the
engine oil and filter must be changed at least once a
year and at this time the system must be reset.
Your dealer/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, the oil must be
changed at 3,000 miles (5 000 km) since the last oil
change. Remember to reset the oil life system whenever
the oil is changed.
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•Protects against rust and corrosion.
•Will not damage aluminum parts.
•Helps keep the proper engine temperature.
Notice:If an improper coolant mixture is used, the
engine could overheat and be badly damaged.
The repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can
freeze and crack the engine, radiator, heater core,
and other parts.
Notice:If extra inhibitors and/or additives are used
in the vehicle’s cooling system, the vehicle could
be damaged. Use only the proper mixture of
the engine coolant listed in this manual for the
cooling system. SeeRecommended Fluids and
Lubricants on page 7-10for more information.
Checking Coolant
The vehicle must be on a level surface when checking
the coolant level.
Check to see if coolant is visible in the coolant recovery
tank. If the coolant inside the coolant recovery tank is
boiling, do not do anything else until it cools down.
If coolant is visible but the coolant level is not at
or above the FULL COLD mark, add a 50/50 mixture of
clean, drinkable water and DEX-COOL
®coolant atthe coolant recovery tank, but be sure the cooling
system is cool before this is done. SeeEngine Coolant
on page 6-25for more information.
The coolant level should be at or above the FULL
COLD mark on the coolant surge tank. If it is not, you
may have a leak at the pressure cap or in the radiator
hoses, heater hoses, radiator, water pump, or
somewhere else in the cooling system.
How to Add Coolant to the
Recovery Tank
{WARNING:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol and
it will burn if the engine parts are hot enough. Do
not spill coolant on a hot engine.
Notice:This vehicle has a speci c coolant ll
procedure. Failure to follow this procedure could
cause the engine to overheat and be severely
damaged.
If coolant is needed, add the proper DEX-COOL
®
coolant mixture at the coolant recovery tank.
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Electronic Immobilizer Operation
PASS-Key®III+...........................................3-17
Electronic Stability Control................................. 5-5
Electronic Stability Control Indicator Light...........4-32
Emergency Trunk Release Handle.....................3-12
Emissions Inspection and Maintenance
Programs...................................................4-36
Ending a Call.................................................4-76
Engine
Air Cleaner/Filter.........................................6-21
Check and Service Engine Soon Lamp...........4-34
Compartment Overview................................6-14
Coolant......................................................6-25
Coolant Heater............................................3-22
Coolant Temperature Gage...........................4-33
Coolant Temperature Warning Light................4-33
Cooling System...........................................6-24
Drive Belt Routing.......................................7-12
Exhaust.....................................................3-30
Oil .............................................................6-17
Overheated Protection Operating Mode...........6-30
Overheating................................................6-28
Starting......................................................3-20
Engine Cooling When Trailer Towing..................5-33
Engine Identification........................................6-96
Engine Oil
Life System................................................6-20
Engine Oil Additives / Engine Oil Flushes...........6-20Entering Personalization Menu..........................4-46
Entry/Exit Lighting...........................................4-13
Erasing Universal Home Remote Buttons...........3-40
Event Data Recorders.....................................8-16
Exiting Personalization Menu............................4-50
Express Window Anti-Pinch Feature...................3-15
Express Window Anti-Pinch Override.................3-15
Express-Down Window....................................3-14
Express-Up Window........................................3-14
Extender, Safety Belt
.......................................2-31
Exterior Mirrors...............................................1-10
F
Federal Communications Commission (FCC) and
Industry and Science Canada........................6-54
Filter
Engine Air Cleaner......................................6-21
Finding a Category (CAT) Station (XM Satellite
Radio Service Only).....................................4-56
Finding a Station............................................4-53
Finish Damage...............................................6-95
Flashers, Hazard Warning.................................. 4-3
Flash-to-Pass................................................... 4-5
Flat Tire........................................................6-66
Flat Tire, Changing.........................................6-74
Flat Tire, Storing.............................................6-84
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