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
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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:
Installing the Fence
Insert the fence into the adapters and lock both latches (A) by turning to
align with the arrow on the adapter (B). ...
Exterior Lamp Controls
The exterior lamp control is
located toward the end of the
turn signal/lane change lever.
(Exterior Lamp Control):
Turn the band with this symbol on
it to operate the exterior lamps.
The e ...
Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every
5 000 km/ 3,000 mi.
Have underbody flushing service performed once a year.
...