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:
Verify Minutes and Expiration
Push and say “minutes” then
“verify” to check how many minutes
remain and their expiration date. ...
AVG (Average) Speed
Displays the average speed of the
vehicle in either kilometers per
hour (km/h) or miles per hour (mph).
This calculation is based on the
various vehicle speeds recorded
since the last reset o ...
Steering Wheel Controls
If available, some audio controls can be adjusted at the steering wheel.
: Press to go to the next favorite
radio station, track on a CD, or folder on an iPod® or USB device.
: Press to go to ...






