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:
High-Beam On Light
This light comes on when the high-beam headlamps are in use.
See Headlamp High/Low-Beam Changer for more information. ...
Three-Way Calling
Three-Way Calling must be
supported on the cell phone and
enabled by the wireless service
carrier to work.
1. While on a call press .
2. Say “Three-way call.”
3. Use the dial or call command ...
ALL WHEEL DRIVE OFF
If the vehicle has the All-Wheel
Drive (AWD) system, this message
displays when there is a temporary
condition making the AWD system
unavailable. The vehicle will run in
2WD. This could be c ...