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{WARNING:
If you use bias-ply tires on the vehicle, thewheel rim flanges could develop cracks aftermany miles of driving. A tire and/or wheelcould fail suddenly, causing a crash. Useonly radial-ply tires with the wheels onthe vehicle.
If you must replace your vehicle’s tires with those thatdo not have a TPC Spec number, make sure theyare the same size, load range, speed rating, andconstruction type (radial and bias-belted tires) as yourvehicle’s original tires.
Vehicles that have a tire pressure monitoring systemcould give an inaccurate low-pressure warning ifnon-TPC Spec rated tires are installed on your vehicle.Non-TPC Spec rated tires may give a low-pressurewarning that is higher or lower than the proper warninglevel you would get with TPC Spec rated tires. SeeTire Pressure Monitor System on page 6-57.
Your vehicle’s original equipment tires are listed on theTire and Loading Information Label. SeeLoadingthe Vehicle on page 5-18, for more information aboutthe Tire and Loading Information Label and its locationon your vehicle.
Different Size Tires and Wheels
If you add wheels or tires that are a different size thanyour original equipment wheels and tires, this mayaffect the way your vehicle performs, including itsbraking, ride and handling characteristics, stability, andresistance to rollover. Additionally, if your vehiclehas electronic systems such as, antilock brakes, tractioncontrol, and electronic stability control, the performanceof these systems can be affected.
{WARNING:
If you add different sized wheels, your vehicle may
not provide an acceptable level of performance
and safety if tires not recommended for those
wheels are selected. You may increase the
chance that you will crash and suffer serious
injury. Only use GM specific wheel and tire
systems developed for your vehicle, and have
them properly installed by a GM certified
technician.
SeeBuying New Tires on page 6-64andAccessoriesand Modifications on page 6-3for additional information.
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If you need to replace any of your wheels, wheel bolts,wheel nuts, or Tire Pressure Monitor System (TPMS)sensors, replace them only with new GM originalequipment parts. This way, you will be sure to have theright wheel, wheel bolts, wheel nuts, and TPMSsensors for your vehicle.
{WARNING:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts on your vehicle can be dangerous. It
could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts, and wheel nuts for
replacement.
Notice:The wrong wheel can also cause problemswith bearing life, brake cooling, speedometer orodometer calibration, headlamp aim, bumper height,vehicle ground clearance, and tire or tire chainclearance to the body and chassis.
If your vehicle is a professional model, the wheels havea unique offset and bolt hole diameter. Each of thewheels on the professional vehicle have eight wheelsnuts. The wheels on the non-professional vehiclehave five wheel nuts. SeeChanging a Flat Tire onpage 6-80for more information.
Used Replacement Wheels
{WARNING:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far
it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel, use
a new GM original equipment wheel.
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Tire Chains
{WARNING:
Do not use tire chains. There is not enough
clearance. Tire chains used on a vehicle without
the proper amount of clearance can cause
damage to the brakes, suspension or other vehicle
parts. The area damaged by the tire chains could
cause you to lose control of the vehicle and you or
others may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on the
vehicle and tire size combination and road
conditions. Follow that manufacturer’s instructions.
To help avoid damage to the vehicle, drive slowly,
readjust or remove the device if it is contacting the
vehicle, and do not spin the vehicle’s wheels. If
you do find traction devices that will fit, install
them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,especially if you maintain your vehicle’s tires properly.If air goes out of a tire, it is much more likely to leak outslowly. But if you should ever have a blowout, hereare a few tips about what to expect and what to do:
If a front tire fails, the flat tire creates a drag that pullsthe vehicle toward that side. Take your foot off theaccelerator pedal and grip the steering wheel firmly.Steer to maintain lane position, and then gently brake toa stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like askid and may require the same correction you woulduse in a skid. In any rear blowout remove your foot fromthe accelerator pedal. Get the vehicle under controlby steering the way you want the vehicle to go. It maybe very bumpy and noisy, but you can still steer. Gentlybrake to a stop, well off the road if possible.
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Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damageby driving slowly to a level place. Turn on the hazardwarning flashers. SeeHazard Warning Flasherson page 4-3.
{WARNING:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you or
other people. You and they could be badly injured
or even killed.
WARNING: (Continued)
WARNING: (Continued)
Find a level place to change your tire. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put the shift lever in P (Park).
3. Turn off the engine and do not restart while
the vehicle is raised.
4. Do not allow passengers to remain in
the vehicle.
To be even more certain the vehicle will not move,
you should put blocks at the front and rear of the
tire farthest away from the one being changed.
That would be the tire, on the other side, at the
opposite end of the vehicle.
When the vehicle has a flat tire (B), use the followingexample as a guide to assist you in the placementof wheel blocks (A).
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13. Lower the vehicle by turning the jack handlecounterclockwise. Lower the jack completely.
{WARNING:
Wheel nuts that are improperly or incorrectly
tightened can cause the wheels to become loose
or come off. The wheel nuts should be tightened
with a torque wrench to the proper torque
specification after replacing. Follow the torque
specification supplied by the aftermarket
manufacturer when using accessory locking wheel
nuts. SeeCapacities and Specifications on
page 6-109for original equipment wheel nut
torque specifications.
Notice:Improperly tightened wheel nuts can leadto brake pulsation and rotor damage. To avoidexpensive brake repairs, evenly tighten the wheelnuts in the proper sequence and to the propertorque specification. SeeCapacities andSpecifications on page 6-109for the wheel nuttorque specification.
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FusesUsage
9Engine Control Module (ECM),Powertrain Control Module (PCM)
10Climate Control System, InstrumentPanel Cluster Ignition 1
11Airbag System
12Horn
13Windshield Wiper
14Fog Lamps
15Right High-Beam Headlamp
16Left High-Beam Headlamp
17Left Low-Beam Headlamp
18Right Low-Beam Headlamp
19Windshield Washer Pump Motor
20Left Front Cornering Lamp
21Right Front Cornering Lamp
22Air Pump (J-Case)
23Antilock Brake System (ABS)(J-Case)
FusesUsage
24Starter (J-Case)
25Antilock Brake System (ABS)Motor (J-Case)
26Cooling Fan 2 (J-Case)
27Cooling Fan 1 (J-Case)
RelaysUsage
29Powertrain
30Starter
31Cooling Fan 2
32Cooling Fan 3
33Cooling Fan 1
34Air Conditioning Clutch
35Air Injection Reactor (AIR) Solenoid
36Ignition
37Air Pump
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•Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system mustbe repaired and the fluid level checked.
•Engine air cleaner filter inspection. SeeEngine Air
Cleaner/Filter on page 6-17.
•Brake system inspection (or every 12 months,
whichever occurs first).
•Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts orsigns of wear.
•Engine cooling system inspection. Visual inspection
of hoses, pipes, fittings, and clamps andreplacement, if needed.
•Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and wiperblade cleaning, if contaminated. SeeWindshieldand Wiper Blades on page 6-97. Worn or damagedwiper blade replacement. SeeWindshield WiperBlade Replacement on page 6-44.
•Body hinges and latches, key lock cylinders,
console hinges, and glove box door hingeslubrication. SeeRecommended Fluids andLubricants on page 7-8. More frequent lubricationmay be required when vehicle is exposed to acorrosive environment.
Applying silicone grease on weatherstrips with aclean cloth makes them last longer, seal better, andnot stick or squeak.
•Restraint system component check. SeeChecking
the Restraint Systems on page 2-74.
•Automatic transmission fluid level check and adding
fluid, if needed. SeeAutomatic Transmission Fluidon page 6-19.
Additional Required Services
At Each Fuel Stop
•Engine oil level check. SeeEngine Oil on
page 6-13.
•Engine coolant level check. SeeEngine Coolant on
page 6-23.
•Windshield washer fluid level check. SeeWindshield
Washer Fluid on page 6-31.
Once a Month
•Tire inflation check. SeeInflation - Tire Pressure on
page 6-54.
•Tire wear inspection. SeeTire Inspection and
Rotation on page 6-62.
7-4
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Once a Year
•Starter switch check. SeeOwner Checks and
Services on page 7-6.
•Parking brake and automatic transmission P (Park)
mechanism check. SeeOwner Checks andServices on page 7-6.
•Automatic transmission shiftlock control system
check. SeeOwner Checks and Services onpage 7-6.
•Ignition transmission lock check. SeeOwner
Checks and Services on page 7-6.
•Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenseroutside cleaning. SeeCooling System on page 6-22.
•Exhaust system and nearby heat shields inspection
for loose or damaged components.
•Accelerator pedal check for damage, high effort, or
binding. Replace if needed.
First Engine Oil Change After Every
40 000 km/25,000 Miles
•Fuel system inspection for damage or leaks.
•Passenger compartment air filter replacement
(or every 12 months, whichever occurs first). Morefrequent replacement may be required if vehicleis driven regularly under dusty conditions.
First Engine Oil Change After Every
80 000 km/50,000 Miles
•Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6-17.
•Automatic transmission fluid and filter change
(severe service) for vehicles mainly driven in heavycity traffic in hot weather, in hilly or mountainousterrain, when frequently towing a trailer, or used fortaxi, police, or delivery service. SeeAutomaticTransmission Fluid on page 6-19.
7-5