Service Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission, axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.
Owner Information
Owner publications are written specifically for owners and intended to provide basic operational information about the vehicle. The Owner Manual includes the Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner Manual, and Warranty Booklet.
RETAIL SELL PRICE:
$35.00 (U.S.) plus handling and shipping fees.
Without Portfolio: Owner Manual only.
RETAIL SELL PRICE:
$25.00 (U.S.) plus handling and shipping fees.
Current and Past Models
Technical Service Bulletins and Manuals are available for current and past model GM vehicles.
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. at: www.helminc.com.
Or 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.
All listed prices are quoted in U.S.
funds. Make checks payable in U.S.
funds.
See also:
How to Check Lubricant
2500HD with 6.0 L
All Other Series and Engines
To get an accurate reading, the vehicle should be on a level surface.
• For all 4.3 L, 4.8 L and 5.3 L 1500 Series applications, the proper leve ...
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a problem with the airbag system.
Have your dealer inspect the system for problems. See Airbag Readiness Light on page 5‑20 and Airbag System ...
Weight of the Trailer
How heavy can a trailer safely be? Speed, altitude, road grades, outside temperature,
special equipment, and the amount of tongue weight the vehicle can carry must be
considered. See “Weight of ...





