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:

    Add-On Electrical Equipment
    Notice: Do not add anything electrical to the vehicle unless you check with your dealer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle&# ...

    Sensors
    The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, ...

    Footnotes — Maintenance Schedule Additional Required Services — Severe
    a) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation. b) Or every two years, whichever comes first. c) Check all fuel and vapor lines and hoses f ...