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:
XM Weather
Press the Weather screen button to display the Current or Extended Forecast Weather.
The Extended Forecast Weather screen displays five days of the forecasted weather
at the vehicle’s current posit ...
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment. Added
electrical equipment may interfer ...
Daytime Running Lamp (DRL) (Uplevel)
1. From the back side of the headlamp assembly, remove the bottom cap to
replace the DRL bulb.
2. Disconnect electrical connector.
3. Remove the DRL bulb socket from the headlamp assembly.
4. ...