
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 at 150,000 miles
(240 000 km) and 200,000 miles (332 000 km) should
be repeated at the same interval after 150,000 miles
(240 000 km) and 200,000 miles (332 000 km) for the life
of this vehicle.
See
Part B: Owner Checks and Services on page 6-12andPart C: Periodic MaintenanceInspections on
page 6-17.
Footnotes
²The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle 's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-18.
Engine Oil and Chassis Lubrication
Scheduled Maintenance
Change engine oil and ®lter as indicated by the GM
Oil Life System (or every 12 months, whichever
occurs ®rst). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL message will
come on. Change your oil as soon as possible within
the next two times you stop for fuel. It is possible that, if
you are driving under the best conditions, the oil life
system may not indicate that an oil change is necessary
for over a year. However, your engine oil and ®lter
must be changed at least once a year and at this time
the system must be reset. Your dealer has GM-trained
service people who will perform this work using
genuine GM parts and reset the system.
6-5

It is also important to check your oil regularly and keep
it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. See
Engine Oil on
page 5-16for information on resetting the system.
An Emission Control Service.
Lubricate chassis components with each engine oil
and ®lter change. Vehicles used under severe
commercial operating conditions require lubrication
on a regular basis every 3,000 miles (5 000 km).
Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage and parking brake
cable guides. Ball joints should not be lubricated unless
their temperature is 10ÉF (-12ÉC) or higher or they
could be damaged.
See the mileage intervals following for additional
services that may be performed with an engine oil
change and chassis lubrication. After the services are
performed, record the date, odometer reading and
who performed the service on the maintenance record
pages in Part E of this schedule.
7,500 Miles (12 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +.)
qAllison TransmissionžOnly: Replace the external
control-main ®lter.
15,000 Miles (25 000 km)
qInspect engine air cleaner ®lter or change indicator (if
equipped). If necessary, replace the ®lter. If vehicle is
driven in dusty/dirty conditions, inspect ®lter or
change indicator (if equipped) at every engine oil
change. See
Engine Air Cleaner/Filter on page 5-21for more information.An Emission Control Service.
(See footnote ².)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +.)
6-6

Part E: Maintenance Record
After the scheduled services are performed, record the date, odometer reading and who performed the service and
any additional information from ªOwner Checks and Servicesº or ªPeriodic Maintenanceº on the following record
pages. Also, you should retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced ByMaintenance Record
6-22

The BBB Auto Line Program is an out of court program
administered by the Council of Better Business
Bureaus to settle automotive disputes regarding vehicle
repairs or the interpretation of the New Vehicle
Limited Warranty. Although you may be required to
resort to this informal dispute resolution program prior to
®ling a court action, use of the program is free of
charge and your case will generally be heard within
40 days. If you do not agree with the decision given in
your case, you may reject it and proceed with any other
venue for relief available to you.
You may contact the BBB using the toll-free telephone
number or write them at the following address:
BBB Auto Line
Council of Better Business Bureaus, Inc.
4200 Wilson Boulevard
Suite 800
Arlington, VA 22203-1804
Telephone: 1-800-955-5100
This program is available in all 50 states and the District
of Columbia. Eligibility is limited by vehicle age,
mileage and other factors. General Motors reserves the
right to change eligibility limitations and/or discontinue
its participation in this program.Online Owner Center
The Owner Center is a resource for your GM ownership
needs. You can ®nd your speci®c vehicle information
all in one place.
The Owner Center allows you to:
·Get e-mail service reminders.
·Access information about your speci®c vehicle,
including tips and videos and an electronic
version of this owner's manual. (United States only)
·Keep track of your vehicle's service history and
maintenance schedule.
·Find GM dealers for service nationwide.
·Receive special promotions and privileges only
available to members. (United States only)
Refer to the web for updated information.
To register your vehicle, visit www.MyGMLink.com.
(United States) or My GM Canada within
www.gmcanada.com (Canada).
7-3

Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and speci®cations for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE: $50.00
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1-800-463-7483).
Owner's Information
Owner publications are written speci®cally 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: $35.00Without 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.
7-10

Electrical System (cont.)
Power Windows and Other Power Options....5-109
Windshield Wiper Fuses.............................5-109
Electrochromic Mirror Operation................2-54, 2-57
Electronic Transfer Case..................................2-41
Emissions Inspection and Maintenance
Programs...................................................3-51
ENGINE COOLANT HOT.................................3-66
Engine Coolant Level Check.............................6-12
Engine Hour Meter Display...............................3-35
Engine Oil Additives........................................5-19
Engine Oil and Chassis Lubrication Scheduled
Maintenance................................................. 6-5
Engine Oil Level Check...................................6-12
ENGINE OVERHEATED..................................3-66
Engine..........................................................5-21
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-47
Check and Service Engine Soon Light............3-49
Compartment Overview................................5-10
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-47
Coolant......................................................5-30
Cooling System Inspection............................6-17
Exhaust.....................................................2-51
Fan Noise..................................................5-41
Oil .............................................................5-16
Overheating................................................5-33Engine (cont.)
Starting......................................................2-22
Entertainment System....................................3-125
Cleaning the Video Screen..........................3-125
DVD Distortion..........................................3-122
Entry Lighting.................................................3-18
Environmental Concerns..................................4-25
Exit Lighting...................................................3-18
Express Down Windows..................................2-16
Extended Cab and Crew Cab...........................1-50
Extended Cab................................................1-53
Extender, Safety Belt.......................................1-31
Exterior Lamps...............................................3-14
F
Filter.............................................................5-21
Engine Air Cleaner......................................5-21
Finding a PTY Station
(RDS and XMŸ).......................3-78, 3-88, 3-101
Finding a Station....................3-73, 3-76, 3-86, 3-99
Finish Care..................................................5-104
Finish Damage.............................................5-106
Five-Speed (VORTECŸ 4300 V6 and
4800 V8 Engines)........................................2-30
Five-Speed (VORTECŸ 6000 V8 Engine)...........2-29
Fixed Mast Antenna.......................................3-125
6

Light (cont.)
Malfunction Indicator....................................3-49
Passenger Air Bag Status Indicator................3-40
Safety Belt Reminder...................................3-36
Tow/Haul Mode...........................................3-53
Traction Off................................................3-46
Up-Shift.....................................................3-43
Listening to a DVD................................3-97, 3-110
Loading Your Vehicle for Off-Road Driving..........4-24
Loading Your Vehicle.......................................4-58
Locking Rear Axle...........................................4-13
Lockout Protection..........................................2-12
Lock-Out Switch.............................................2-17
Locks............................................................. 2-9
Delayed Locking........................................... 2-9
Door........................................................... 2-7
Lockout Protection.......................................2-12
Power Door.................................................. 2-8
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-21
LOW COOLANT LEVEL..................................3-67
Low Fuel Warning Light...................................3-54
Lumbar........................................................... 1-4
Power Controls............................................. 1-4M
Maintenance, Normal Replacement Parts..........5-121
Maintenance Schedule.....................................6-12
At Each Fuel Fill.........................................6-12
At Least Once a Month................................6-12
At Least Once a Year..................................6-14
At Least Twice a Year..................................6-13
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).......................6-12
Brake System Inspection..............................6-18
Engine Cooling System Inspection.................6-17
Exhaust System Inspection...........................6-17
Fuel System Inspection................................6-17
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.............6-12
Part C - Periodic MaintenanceInspections......6-17
Part D - Recommended Fluids and Lubricants . . . 6-19
Part E - Maintenance Record........................6-22
Scheduled Maintenance................................. 6-5
Steering and Suspension Inspection...............6-17
Throttle System Inspection............................6-18
10

Maintenance Schedule (cont.)
Transfer Case and Front Axle (All-Wheel
Drive) Inspection......................................6-18
Transfer Case and Front Axle (Four-Wheel
Drive) Inspection......................................6-18
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-89
Making Turns.................................................4-86
Malfunction Indicator Light................................3-49
Manual Seats................................................... 1-3
Manual Selectable Ride...................................4-12
Manual Transfer Case.....................................2-34
Manual Transmission Check.............................6-13
Manual Transmission.......................................2-22
Fluid..........................................................5-28
Operation...................................................2-29
Manual Windows............................................2-15
Matching Transmitter(s) to Your Vehicle............... 2-5
Memory Seat.................................................2-66
Message.......................................................3-65
DIC Warnings and Messages........................3-65
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance....................... 7-4
Mirrors..........................................................2-56
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-56
Automatic Dimming Rearview with OnStar
ž,
Compass and Temperature Display.............2-53Mirrors (cont.)
Manual Rearview Mirror................................2-53
Outside Automatic Dimming Mirror.................2-61
Outside Camper-Type Mirrors........................2-59
Outside Convex Mirror.................................2-62
Outside Curb View Assist Mirrors...................2-61
Outside Heated Mirrors................................2-62
Outside Manual Mirrors................................2-59
Outside Power Camper-Type.........................2-60
Outside Power Foldaway Mirrors....................2-61
Outside Power Mirrors..................................2-60
Outside West Coast-Type Mirrors...................2-59
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-20
Noise Control System, Tampering......................5-58
Normal Maintenance Replacement Parts...........5-121
O
Odometer......................................................3-35
Off-Road Recovery..........................................4-19
OIL LIFE RESET............................................3-67
OIL PRESSURE LOW.....................................3-67
11