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
P.O. Box 07130
Detroit, MI 48207

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:

    3.5mm Jack
    Connect a 3.5mm (1/8 in) cable to the auxiliary input jack to use a portable audio player. Playback of an audio device that is connected to the 3.5mm jack can only be controlled using the con ...

    Inflation - Tire Pressure
    Tires need the correct amount of air pressure to operate effectively. Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not hav ...

    Automatic Climate Control System
    For vehicles with this system, it controls the heating, cooling, and ventilation. A. Power B. Temperature Control C. Fan Control D. Air Delivery Mode Control E. Recirculation F. AUTO (Automa ...