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Online Owner Center
The Owner Center is a resource for your GM ownership
needs. You can find your specific vehicle information
all in one place.
The Owner Center allows you to:
•Get e-mail service reminders.
•Access information about your specific 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).
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or
speech-impaired and who use Text Telephones (TTYs),
Chevrolet has TTY equipment available at its Customer
Assistance Center. Any TTY user can communicate
with Chevrolet by dialing: 1-800-833-CHEV (2438). (TTY
users in Canada can dial 1-800-263-3830.)
Customer Assistance Offices
Chevrolet encourages customers to call the toll-free
number for assistance. If a U.S. customer wishes
to write to Chevrolet, the letter should be addressed to
Chevrolet Medium Duty Truck’s Customer Assistance
Center.
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United States
GM Medium Duty Truck
Customer Assistance Center
P.O. Box 44947
Detroit, MI 48244
1-800-TO-CHEVY (1-800-862-4389)
1-800-833-2438 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-TO-CHEVY
Fax Number: 313-381-0022
From Puerto Rico:
1-800-496-9992 (English)
1-800-496-9993 (Spanish)
Fax Number: 313-381-0022
From U.S. Virgin Islands:
1-800-496-9994
Fax Number: 313-381-0022
Canada
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-268-6800
All Overseas Locations
Please contact the local General Motors Business Unit.
Mexico, Central America and
Caribbean Islands/Countries (Except
Puerto Rico and U.S. Virgin Islands)
General Motors de Mexico, S. de R.L. de C.V.
Customer Assistance Center
Paseo de la Reforma # 2740
Col. Lomas de Bezares
C.P. 11910, Mexico, D.F.
01-800-508-0000
Long Distance: 011-52-53 29 0 800
Roadside Assistance Program
GM Medium Duty Truck’s Roadside Assistance provides
stranded owners with towing service for disabled
vehicles during the base warranty period. This service
combines the efforts of trained telephone representatives
with a network of GM Medium Duty Truck’s dealer
services.
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Just dial GM Medium Duty Truck Roadside Assistance
at 1-800-862-4389 to reach a qualified representative
who can assist you in a repair or arrange a tow. We also
provide dealer information at no charge, such as
location of the nearest authorized medium duty
GM Truck dealer and their hours of operation.
Roadside Assistance is available 24 hours a day,
7 days a week, 365 days a year, including weekends
and holidays. Should you have any questions about
Roadside Assistance, call the GM Medium Duty Truck
Roadside Assistance Center or contact your dealer.
Vehicle Data Collection and
Event Data Records
Your vehicle, like other modern motor vehicles, has a
number of sophisticated computer systems that monitor
and control several aspects of the vehicle’s
performance. Your vehicle uses on-board vehicle
computers to monitor emission control components to
optimize fuel economy, to monitor conditions for air bag
deployment and, if so equipped, to provide anti-lock
braking and to help the driver control the vehicle
in difficult driving situations. Some information may be
stored during regular operations to facilitate repair
of detected malfunctions; other information is stored only
in a crash or near crash event by computer systems
commonly called event data recorders (EDR).In a crash or near crash event, computer systems, such
as the Air Bag Sensing and Diagnostic Module (SDM)
in your vehicle may record information about the
condition of the vehicle and how it was operated, such
as engine speed, brake applications, throttle position,
vehicle speed, safety belt usage, air bag readiness, air
bag performance data, and the severity of a collision.
This information has been used to improve vehicle crash
performance and may be used to improve crash
performance of future vehicles and driving safety. Unlike
the data recorders on many airplanes, these on-board
systems do not record sounds, such as conversation of
vehicle occupants.
To read this information, special equipment is needed
and access to the vehicle or the SDM is required.
GM will not access information about a crash event or
share it with others other than
•with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee,
•in response to an official request of police or similar
government office,
•as part of GM’s defense of litigation through the
discovery process, or
•as required by law.
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In addition, once GM collects or receives data, GM may
•use the data for GM research needs,
•make it available for research where appropriate
confidentiality is to be maintained and need is
shown, or
•share summary data which is not tied to a specific
vehicle with non-GM organizations for research
purposes.
Others, such as law enforcement, may have access to
the special equipment that can read the information
if they have access to the vehicle or SDM.
If your vehicle is equipped with OnStar
®, please check
the OnStar®subscription service agreement or
manual for information on its operations and data
collection.
Reporting Safety Defects
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you
should immediately inform the National Highway Traffic
Safety Administration (NHTSA), in addition to notifying
General Motors.
If NHTSA receives similar complaints, it may open an
investigation, and if it finds that a safety defect exists in
a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer or
General Motors.
To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
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Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-862-4389, or write:
GM Medium Duty Truck
Customer Assistance Center
P.O. Box 44947
Detroit, MI 48244In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
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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 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.
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A
Accessory Power Outlets.................................3-17
Adding Equipment to Your Air Bag-Equipped
Vehicle.......................................................1-61
Adding Washer Fluid.......................................5-44
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment............................5-86
Adjusting the Speakers
(Balance/Fade)............................3-47, 3-50, 3-54
Air Bag
Off Light.....................................................3-28
Readiness Light..........................................3-27
Air Bag System..............................................1-48
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-61
Air Bag Off Switch.......................................1-55
How Does an Air Bag Restrain?....................1-53
Servicing Your Air Bag-Equipped Vehicle.........1-60
What Makes an Air Bag Inflate?....................1-53
What Will You See After an Air Bag Inflates? . . 1-54
When Should an Air Bag Inflate?...................1-53
Where Are the Air Bags?..............................1-52
Air Brake.......................................................2-35
Air Brake System Warning Light........................3-33
Air Brake Systems..........................................5-50
Air Cleaner/Filter, Engine.................................5-30
Air Conditioning System...................................5-67Air Connections..............................................4-36
Air Dryer.......................................................5-50
Air Pressure Gage..........................................3-44
Air Shift Control (Automatic Transmission)..........2-27
Air Suspension...............................................2-27
Air Suspension Seats........................................ 1-6
Airbag Sensing and Diagnostic Module (SDM)...... 7-5
All Overseas Locations...................................... 7-4
Allison Transmission
®External Filters...............5-100
Aluminum or Chrome-Plated Wheels..................5-82
AM ...............................................................3-57
AM-FM Radio.................................................3-46
Antenna, Fixed Mast.......................................3-59
Anti-lock Brake System (ABS)............................ 4-7
Anti-Lock Brake, System Warning Light..............3-34
Anti-Lock Brakes, Trailer System
Warning Light.............................................3-35
Appearance Care............................................5-76
Care of Safety Belts....................................5-79
Chemical Paint Spotting...............................5-83
Cleaning the Inside of Your Vehicle................5-77
Cleaning the Outside of Your Vehicle..............5-80
Finish Damage............................................5-83
Sheet Metal Damage...................................5-82
Underbody Maintenance...............................5-83
Vehicle Care/Appearance Materials................5-84
Weatherstrips..............................................5-79
Ashtrays........................................................3-18
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Audio System(s).............................................3-45
AM-FM Radio.............................................3-46
Care of Your Cassette Tape Player................3-57
Care of Your CD Player...............................3-59
Care of Your CDs........................................3-59
Chime Level Adjustment...............................3-59
Fixed Mast Antenna.....................................3-59
Radio with Cassette.....................................3-48
Radio with CD............................................3-53
Setting the Time..........................................3-45
Theft-Deterrent Feature................................3-57
Understanding Radio Reception.....................3-57
Automatic Ether Injection System......................5-66
Automatic Transmission...........................2-13, 2-19
Fluid..........................................................5-31
Operation...................................................2-28
Automatic Transmission External Filter...............5-31
Automatic Transmission Shift Indicator Check......6-26
Axle, Two-Speed Rear Axle Electric
Shift Control...............................................2-26
B
Battery..........................................................5-55
Battery Replacement......................................... 2-5
Bench Seat, Split............................................. 1-6
Body Lubrication Service..................................6-25Brake
Diesel Engine Exhaust.................................2-25
Exhaust Indicator Light.................................3-40
Parking Warning Light..................................3-34
System Warning Light..................................3-31
Trailer Hand Control Valve.............................. 4-9
Brake Adjustment............................................5-49
Brake Fluid....................................................5-46
Brake Pedal Travel.........................................5-49
Brake System Check.......................................6-26
Brakes..........................................................5-46
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-11
Bucket Seats................................................... 1-2
Bulb Replacement
Replacement Bulbs......................................5-63
C
Canada........................................................... 7-4
Canadian Owners................................................ ii
Capacities and Specifications............................5-93
Carbon Monoxide...................................4-25, 2-37
2