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
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:

    Battery Replacement
    To change the batteries on the headphones: 1. Turn the screw to loosen the battery door located on the left side of the headphones. Slide the battery door open. 2. Replace the two batteries in the ...

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    Cadillac's version of the Corvette, now in its second year of production, continues to be one of my favorites. Called the XLR, this new Caddy is the first true sports car from General Motors' luxu ...

    Remote Vehicle Start
    With this feature the engine can be started from outside of the vehicle. Starting the Vehicle 1. Press and release on the RKE transmitter. 2. Within two seconds, press and hold until the turn s ...