Current and Past Models
Technical Service Bulletins and Manuals are available for current and past model GM vehicles.
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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
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
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:
Driving Characteristics and Towing Tips
WARNING
The driver can lose control when pulling a trailer if the correct equipment is
not used or the vehicle is not driven properly.
For example, if the trailer is too heavy, the brakes may not ...
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping
or decreasing vehicle speed in emergency driving conditions. This feature uses the
stability system hydraulic brak ...
What Makes an Airbag Inflate?
In a deployment event, the sensing system sends an electrical signal
triggering a release of gas from the inflator. Gas from the inflator fills the
airbag causing the bag to break out of the cover. ...