
Mini Fuses Usage
11 Cooling Fan Relay
14Manifold Air
Flow/Chassis
Control
15 Ignition
16 Run/Crank IP
17Sensing Diagnostic
Module/Ignition
18 Run/Crank Body
19Transmission
Control Module/
Ignition
20Engine Control
Module/Ignition
31Outside Rear
View Mirror
32Canister Vent
Solenoid
33Body Control
Module #6Mini Fuses Usage
34 Sunroof
35 Front Heated Seats
38 Washer Pump Front
40Antilock Brake
System Valves
46HID Headlamp –
Left Front
47HID Headlamp –
Right Front
50 Fog Lamps
51 Horn
52 Spare
55High Beam
Headlamp – Right
Front
56High Beam
Headlamp – Left
Front
61 Heated MirrorMini
RelaysUsage
K26 Powertrain
K50 Run / Crank
K55 Rear Defog
K612 Cooling Fan High
K614 Cooling Fan Control
Micro
RelaysUsage
K61 Starter
K69 Wiper Control
K613 Cooling Fan Low
K617Air Conditioning
Compressor Clutch
K619 Wiper Speed
K627High Intensity
Discharge
Headlamps
K632Brake
Vacuum Pump
9-44 Vehicle Care

If you need to replace any of the
wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System
(TPMS) sensors, replace them only
with new GM original equipment
parts. This way, you will be sure to
have the right wheel, wheel bolts,
wheel nuts, and TPMS sensors for
the 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 problems with bearing
life, brake cooling, speedometer
or odometer calibration, headlamp
aim, rear differential, bumper
height, vehicle ground clearance,
and tire or tire chain clearance to
the body and chassis.
SeeIf a Tire Goes Flat on page 9-69
for 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.
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.
(Continued)
9-68 Vehicle Care

MaintenanceI
•
Change engine oil and filter.
SeeEngine Oil on page 9-10.
An Emission Control Service.
•Engine coolant level check. See
Engine Coolant on page 9-19.
•Windshield washer fluid level
check. SeeWasher Fluid on
page 9-26.
•Tire inflation check. SeeTire
Pressure on page 9-54.
•Tire wear inspection. SeeTire
Inspection on page 9-61.
•If tire rotation is recommended
for the vehicle, rotate tires.
SeeTire Rotation on page 9-61.
•Fluids visual leak check (or every
12 months, whichever occurs
first). A leak in any system must
be repaired and the fluid level
checked.
•Engine air cleaner filter
inspection (vehicles driven
in dusty conditions only).
SeeEngine Air Cleaner/Filter
on page 9-16.
•Brake system inspection (or
every 12 months, whichever
occurs first).
MaintenanceII
•
Perform all services described in
MaintenanceI.
•Steering and suspension
inspection. Visual inspection
for damaged, loose, or missing
parts or signs of wear.
•Engine cooling system
inspection. Visual inspection of
hoses, pipes, fittings, and clamps
and replacement, if needed.
•Windshield wiper blade
inspection for wear, cracking, or
contamination and windshield
and wiper blade cleaning,
if contaminated. SeeExterior
Care on page 9-88. Worn
or damaged wiper blade
replacement. SeeWiper Blade
Replacement on page 9-33.
•Body hinges and latches,
key lock cylinders, folding
seat hardware, and sunroof
(if equipped) lubrication.
SeeRecommended Fluids
and Lubricants on page 10-7.
More frequent lubrication may be
required when vehicle is exposed
to a corrosive environment.
Applying silicone grease on
weatherstrips with a clean cloth
makes them last longer, seal
better, and not stick or squeak.
Service and Maintenance 10-3

•Restraint system component
check. SeeSafety System Check
on page 2-20.
•Automatic transmission fluid level
check and adding fluid, if needed.
SeeAutomatic Transmission
Fluid on page 9-14.
•Rear axle fluid level check and
adding fluid, if needed. SeeRear
Axle on page 9-30.
•Engine air cleaner filter
inspection. SeeEngine Air
Cleaner/Filter on page 9-16.
•Passenger compartment air filter
replacement (or every 12 months,
whichever occurs first). More
frequent replacement may be
required if vehicle is driven
regularly under dusty conditions.
Additional Required Services
At Each Fuel Stop
•Engine oil level check.
SeeEngine Oil on page 9-10.
•Engine coolant level check.
SeeEngine Coolant on
page 9-19.
•Windshield washer fluid level
check. SeeWasher Fluid on
page 9-26.
Once a Month
•Tire inflation check. SeeTire
Pressure on page 9-54.
•Tire wear inspection. SeeTire
Inspection on page 9-61.Once a Year
•SeeStarter Switch Check on
page 9-31.
•SeeAutomatic Transmission
Shift Lock Control System
Check on page 9-32.
•SeeIgnition Transmission Lock
Check on page 9-32.
•SeePark Brake and P (Park)
Mechanism Check on page 9-32.
•Engine cooling system and
pressure cap pressure check.
Radiator and air conditioning
condenser outside cleaning.
SeeCooling System on
page 9-17.
•If the vehicle has a Tire Sealant
and Compressor Kit, check the
sealant expiration date printed
on the instruction label of the
kit. SeeTire Sealant and
Compressor Kit on page 9-71.
10-4 Service and Maintenance

First Engine Oil Change After
Every 40 000 km/25,000 Miles
•Fuel system inspection for
damage or leaks.
•Exhaust system inspection for
loose or damaged components.
First Engine Oil Change After
Every 80 000 km/50,000 Miles
•Engine air cleaner filter
replacement. SeeEngine Air
Cleaner/Filter on page 9-16.
•Automatic transmission fluid
change (severe service) for
vehicles mainly driven in heavy
city traffic in hot weather, in hilly
or mountainous terrain, when
frequently towing a trailer, or used
for taxi, police, or delivery service.
SeeAutomatic Transmission
Fluid on page 9-14.
•Rear axle fluid change (severe
service) for vehicles mainly driven
in hilly or mountainous terrain,
when frequently towing a
trailer, used for high speed or
competitive driving, or used for
taxi, police, or delivery service.
SeeRear Axle on page 9-30.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
•Automatic transmission fluid
change (normal service).
SeeAutomatic Transmission
Fluid on page 9-14.
•Rear axle fluid change (normal
service). SeeRear Axle on
page 9-30.
•Spark plug replacement.
An Emission Control Service.First Engine Oil Change After
Every 240 000 km/150,000 Miles
•Engine cooling system drain,
flush, and refill, cooling system
and cap pressure check,
and cleaning of outside of
radiator and air conditioning
condenser (or every 5 years,
whichever occurs first). See
Cooling System on page 9-17.
An Emission Control Service.
•Engine accessory drive belt
inspection for fraying, excessive
cracks, or obvious damage
and replacement, if needed.
An Emission Control Service.
Service and Maintenance 10-5

ServiceMaintenanceIMaintenance II
Change engine oil and filter. Reset oil life system. ••
Engine coolant level check. ••
Windshield washer fluid level check. ••
Tire inflation pressures check. ••
Tire wear inspection. ••
If tire rotation is recommended for the vehicle, rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Steering and suspension inspection. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Rear axle fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •
Passenger compartment air filter replacement. •
10-6 Service and Maintenance