Page 369 of 410

Service and Maintenance 11-5
.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.
First Engine Oil Change After
Every 80 000 km/50,000 Miles
.Engine air cleaner filter
replacement. See Engine Air
Cleaner/Filter on page 10‑17.
.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. See
Automatic Transmission Fluid
on
page 10‑12.
.Four‐wheel drive only: Transfer
case fluid change. Check vent
hose at transfer case for kinks
and proper installation. Check
to be sure vent hose is
unobstructed, clear, and free of
debris. During any maintenance,
if a power washer is used to
clean mud and dirt from the
underbody, care should be taken
to not directly spray the transfer
case output seals. High pressure
water can overcome the seals
and contaminate the transfer
case fluid. Contaminated fluid
will decrease the life of the
transfer case and should be
replaced.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
.Automatic transmission fluid
change (normal service).
See Automatic Transmission
Fluid on page 10‑12.
.Rear axle fluid change (normal
service). See Rear Axleon
page 10‑29.
.Spark plug replacement and
spark plug wires inspection.
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 10‑18. An
Emission Control Service.
.Engine accessory drive belt
inspection for fraying, excessive
cracks, or obvious damage
and replacement, if needed.
An Emission Control Service.
Page 370 of 410
11-6 Service and Maintenance
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. ••
Rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Body components lubrication. •
Steering and suspension inspection. •
Page 371 of 410
Service and Maintenance 11-7
ServiceMaintenanceIMaintenance
II
Chassis components lubrication. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Four‐wheel drive only: Transfer case fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •
Page 372 of 410

11-8 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil which meets GM Standard GM6094M and displays the
American Petroleum Institute Certified for Gasoline Engines starburst
symbol. To determine the proper viscosity for your vehicle's engine,
see
Engine Oil on page 10‑9.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant on page 10‑19
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. U.S. 12377967,
in Canada 89021320).
Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System GM Power Steering Fluid (GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic Transmission DEXRON
®‐VI Automatic Transmission Fluid.
Manual Transmission Manual Transmission Fluid (GM Part No. U.S. 89021806,
in Canada 89021807).
Hydraulic Clutch System Hydraulic Clutch Fluid (GM Part No. U.S. 12345347, in Canada 10953517)
or equivalent DOT-3 brake fluid.
Page 373 of 410
Service and Maintenance 11-9
UsageFluid/Lubricant
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
in Canada 10953474).
Chassis Lubrication Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Front and Rear Axle SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677,
in Canada 89021678).
Transfer Case DEXRON
®‐VI Automatic Transmission Fluid.
Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
in Canada 10953474).
Outer Endgate Handle Pivot Points Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518)
or Dielectric Silicone Grease (GM Part No. U.S. 12345579,
in Canada 992887).
Weatherstrip Squeaks Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287,
in Canada 10953437).
Page 374 of 410
11-10 Service and Maintenance
Maintenance Replacement Parts
Replacement parts identified below by name, part number or specification can be obtained from your dealer.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter
3.7L L5 and 5.3L V8 Engine 15942429 —
Engine Oil Filter 3.7L L5 Engine 19210285 PF61
5.3L V8 Engine 89017524 PF48
Spark Plugs 3.7L L5 Engine 12625058 41-103
5.3L V8 Engine 12621258 41-110
Wiper Blades
Front Driver Side –42.5 cm (16.7 in) 10389562 —
Front Passenger Side –40.0 cm (15.7 in) 10389563 —
Rear –30.0 cm (11.8 in) 10389570 —
Page 375 of 410
Service and Maintenance 11-11
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the
type of services performed in the boxes provided. Retain all maintenance receipts.
Maintenance Record
DateOdometer
Reading Serviced By Services Performed
Page 376 of 410
11-12 Service and Maintenance
Maintenance Record (cont'd)
DateOdometer
Reading Serviced By Services Performed