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
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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:
Clearing the System
Unless information is deleted out
of the in-vehicle Bluetooth system,
it will be retained indefinitely.
This includes all saved name tags in
the phone book and phone pairing
information. For ...
Navigation System
Use of the navigation system may result in the storage of destinations, addresses,
telephone numbers, and other trip information. See Using the Navigation System for information on store ...
Starting the Engine
When first starting the vehicle, the
engine idle speed will be elevated
to allow the catalytic converter, an
emissions control device, to quickly
reach operating temperature.
After approximat ...






