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:

    Magnetic Ride Control
    With this feature on the CTS-V, the Magnetic Ride Control system adjusts the ride of the vehicle to Tour or Sport modes. Magnetic Ride Control monitors the suspension system to determine the ...

    Rear Display
    Press the Rear Display(s) screen button to allow the choice of sources for rear display between front disc, rear aux, or usb, if connected. ...

    Windshield
    For safety, appearance, and the best viewing, keep the windshield clean and clear. - Signs of damage include scratches, cracks, and chips. - Trained dealer technicians can inspect the windsh ...