Current and Past Models
Technical Service Bulletins and Manuals are available for current and past model GM vehicles.
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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:
Front Turn Signal Lamp (Base and Uplevel)
To replace the Front Turn Signal Lamp:
1. Remove the turn signal lamp bulb socket from the headlamp assembly.
2. Remove the turn signal lamp bulb from the socket.
3. Replace the bulb in the bulb ...
Fuel Additives
To provide cleaner air, all gasolines
in the United States are now
required to contain additives that
help prevent engine and fuel system
deposits from forming, allowing the
emission control ...
Trans (Transmission) Temp (Temperature) (CTS-V Only)
This display shows the transmission
fluid temperature in either degrees
Celsius (°C) or degrees
Fahrenheit (°F). ...






