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:
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about thr ...
Keyless Unlocking
With the transmitter within 1m (3 ft), approach the front door and pull the
handle. If the transmitter is recognized, the door will unlock and open.
Entering any door other than the driver door wi ...
When It Is Time for New Tires
Factors, such as maintenance, temperatures, driving speeds, vehicle loading,
and road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for ne ...






