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:
Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper
operation of the malfunction indicator lamp as may be required for emission inspection
purposes. With the vehicle ...
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 ...
Instrument Panel Illumination Control
This feature controls the brightness of the instrument panel controls and infotainment
display screen. The thumbwheel is located to the left of the steering column on
the instrument panel.
(In ...