
Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using the Maintenance Schedule......................6-4
Scheduled Maintenance Supplements................6-4Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-28
At Each Fuel Fill..........................................6-28
At Least Twice a Year...................................6-29
At Least Once a Year...................................6-32
Part C: Recommended Fluids and Lubricants. . . .6-33
Part D: Maintenance Record..........................6-35
Section 6 Maintenance Schedule
6-1

How This Section is Organized
This maintenance schedule is divided into four parts:
“Part A: Scheduled Maintenance Services”explains
what to have done and how often. Some of these
services can be complex, so unless you are technically
qualified and have the necessary equipment, you
should let your GM dealer’s service department do
these jobs.
Your GM dealer has GM-trained and supported service
people that will perform the work using genuine GM parts.
{CAUTION:
Performing maintenance work on a vehicle can
be dangerous. In trying to do some jobs, you
can be seriously injured. Do your own
maintenance work only if you have the
required know-how and the proper tools and
equipment for the job. If you have any doubt,
have a quali ed technician do the work. See
Doing Your Own Service Work on page 5-4.
If you want to purchase service information, seeService
Publications Ordering Information on page 7-11.“Part B: Owner Checks and Services”tells you what
should be checked and when. It also explains what
you can easily do to keep your vehicle in good condition.
“Part C: Recommended Fluids and Lubricants”
lists some recommended products necessary to help
keep your vehicle properly maintained. These products,
or their equivalents, should be used whether you do
the work yourself or have it done.
“Part D: Maintenance Record”is a place for you to
record and keep track of the maintenance performed on
your vehicle. Keep your maintenance receipts. They
may be needed to qualify your vehicle for warranty
repairs.
6-3

Part A: Scheduled Maintenance
Services
In this part are scheduled maintenance services which
are to be performed at the mileage intervals specified.
Using the Maintenance Schedule
We at General Motors want to help keep your vehicle in
good working condition. But we do not know exactly
how you will drive it. You may drive very short distances
only a few times a week. Or you may drive long
distances all the time in very hot, dusty weather. You
may use your vehicle in making deliveries or in
many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition,
see your dealer.
This part tells you the maintenance services you should
have done and when to schedule them.
When you go to your dealer for your service needs, you
will know that GM-trained and supported service
people will perform the work using genuine GM parts.The proper fluids and lubricants to use are listed in
Part C. Make sure whoever services your vehicle uses
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives the
vehicle.
This schedule is for vehicles that:
•carry passengers and cargo within recommended
limits. You will find limits on your vehicle’s GVW
Rating label. SeeLoading Your Vehicle on
page 4-34.
•are driven on reasonable road surfaces within legal
driving limits.
•use the recommended fuel. SeeGasoline Octane
on page 5-6for gasoline engine vehicles orWhat
Fuel to Use on page 5-8for diesel engine vehicles.
Scheduled Maintenance
Supplements
If your vehicle has a Caterpillar®diesel engine, your
owner’s manual is supplemented by the Caterpillar®
Diesel Engine Operation & Maintenance Manual. If your
vehicle has an Allison Transmission®, your owner’s
manual is supplemented by an Allison Transmission®
Operator’s Manual. Always refer to these manuals
for related maintenance services.
6-4

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown after 100,000 miles
(166 000 km) should be repeated at the same miles (km)
after those intervals for the life of this vehicle.
Gasoline engine vehicles and some DURAMAX
®diesel
engine vehicles have a computer that lets you know
when to change your engine oil. This is not based
on mileage, but on engine operation and engine
temperature. When the computer has calculated that the
oil needs changing, the Engine Oil Life System will
indicate that a change is necessary. SeeEngine Oil Life
System (Gasoline Engine) on page 5-31orEngine Oil
Life System (DURAMAX
®Diesel) on page 5-33or
Engine Oil Life System (Caterpillar®Diesel Engine) on
page 5-34.
The “Footnotes” at the end of this Maintenance
Schedule further explain maintenance services.
SeeService Publications Ordering Information on
page 7-11.
100 Miles (160 km)
❑Wheel stud nut service.(36)
1,000 Miles (1 600 km)
❑Wheel stud nut service.(36)
❑Rear axle air shift motor service.(10)
7,500 Miles (12 000 km)
❑Gasoline Engine Only: Check engine oil life system.
If engine oil and filter are changed, reset system.
See “Engine Oil (Gasoline Engine)” in the
Index.(2) (8)
❑Check fluid levels (or every 3 months, whichever
occurs first).(1) (5)
❑Chassis lubrication service (or every 6 months,
whichever occurs first).(11)
❑Wheels and tires service.(14)
❑Hydraulic brake service (or every 6 months,
whichever occurs first).(6) (36)
❑Parking brake service (or every 6 months, whichever
occurs first).(21)
6-5

Part D: Maintenance Record
After the scheduled services are performed, record the date, odometer reading and who performed the service, and
any additional information from “Owner Checks and Services” on the following record pages. Also, you should
retain all maintenance receipts.
DateMiles/km Or
HoursServiced By Maintenance Record
6-35

Owner’s Information
Owner publications are written specifically for owners
and intended to provide basic operational information
about the vehicle. The owner’s manual will include
the Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner’s Manual, and
Warranty Booklet.
RETAIL SELL PRICE: $35.00
Without Portfolio: Owner’s Manual only.
RETAIL SELL PRICE: $25.00
Current and Past Model Order Forms
Service Publications are available for current and
past model GM vehicles. To request an order form,
please specify year and model name of the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc. on the
World Wide Web at: www.helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
7-12

L
Lamps
Dome ........................................................3-16
Exterior......................................................3-14
Marker.......................................................3-16
Reading.....................................................3-17
LATCH System
Child Restraints...........................................1-41
Light
Airbag Off..................................................3-30
Airbag Readiness........................................3-29
Anti-Lock Brake System Warning...................3-35
Brake System Warning.................................3-33
Change Engine Oil......................................3-40
Charging System.........................................3-31
Check Gages Warning.................................3-44
Daytime Running Lamps Indicator..................3-43
Differential Lock Indicator..............................3-42
Engine Overspeed Warning...........................3-40
Engine Shutdown Warning............................3-40
Exhaust Brake Indicator................................3-41
Highbeam On.............................................3-43
Low Coolant Warning...................................3-37
Low Oil Level.............................................3-39
Low Washer Fluid Warning...........................3-44
Malfunction Indicator....................................3-38Light (cont.)
Range Inhibit Warning Indicator.....................3-33
Reduced Engine Power................................3-42
Safety Belt Reminder...................................3-28
Safety Belt Reminder Tone...........................3-28
Service Transmission Warning.......................3-32
Trailer Anti-Lock Brake System Warning..........3-36
Wait to Start Indicator..................................3-37
Water in Fuel Warning.................................3-46
Lighting
Entry.........................................................3-17
Loading Your Vehicle.......................................4-34
Locks
Door ........................................................... 2-6
Power Door.................................................. 2-7
Loss of Control...............................................4-17
Low Coolant Warning Light..............................3-37
Low Washer Fluid Warning Light.......................3-44
M
Maintenance, Normal Replacement Parts..........5-104
Maintenance Schedule
At Each Fuel Fill.........................................6-28
At Least Once a Year..................................6-32
At Least Twice a Year..................................6-29
8

Maintenance Schedule (cont.)
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-28
PartC-Recommended Fluids and
Lubricants...............................................6-33
PartD-Maintenance Record........................6-35
Scheduled Maintenance................................. 6-5
Scheduled Maintenance Supplements............... 6-4
Using.......................................................... 6-4
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-38
Manual Transmission
Fluid..........................................................5-37
Operation...................................................2-31
Manual Windows.............................................. 2-9
Marker Lamps................................................3-16
Mirrors
Manual Rearview Mirror................................2-47
Outside Convex Mirrors................................2-48
Outside Heated Mirrors................................2-48
Outside Manual Mirrors................................2-47
Outside Power Mirrors..................................2-47N
New Vehicle Break-In......................................2-11
Noise Control System, Tampering......................5-67
Normal Maintenance Replacement Parts...........5-104
O
Odometer......................................................3-27
Odometer, Trip...............................................3-27
Off-Road Recovery..........................................4-15
Oil
Change Engine Oil Light...............................3-40
Engine...............................................5-24, 5-28
Low Oil Level Light......................................3-39
Pressure Gage............................................3-38
Oil, Engine Oil Life System..............5-31, 5-33, 5-34
Older Children, Restraints................................1-28
Other Service Items
Air Conditioning System...............................5-74
Automatic Ether Injection System...................5-72
Front Wheel Bearings with Oil-Filled Hubs.......5-73
Fuel Filter...................................................5-70
Primary Fuel Filter and Water Separator.........5-71
Secondary Fuel Filter and Water
Separator/Heater......................................5-71
9