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:
Manual Liftgate
For vehicles without keyless access, unlock the vehicle before opening the
liftgate.
Press the touch pad located in the handle of the liftgate, above the license
plate, and lift up to open.
Do ...
Object Detection System Messages
PARK ASSIST OFF
This message displays when the park assist system has been turned off or
when there is a temporary condition causing the system to be disabled. See
Ultrasonic Parking Assist.
S ...
Using OnStar® Destination Download (US and Canada)
Press the blue OnStar button and an Advisor can locate a point-of-interest or
an address and download the necessary information or coordinates to your navigation
system. Once the destination is do ...