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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Helm, Incorporated
Attention: Customer Service
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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:
OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can
connect to a live Advisor for Emergency, Security, Navigation, Connection, and
Diagnostic Services. See OnStar Overview. ...
When the Light Flashes First and Then Is On Steady
If the light flashes for about a
minute and then stays on, there
may be a problem with the TPMS.
If the problem is not corrected, the
light will come on at every ignition
cycle. See Tire Pres ...
PARKING ASSIST BLOCKED
SEE OWNER'S MANUAL
If the vehicle has the Ultrasonic
Rear Park Assist (URPA) system,
this message displays if there is
something interfering with the park
assist system. See Ultrasonic
Parking Assist for
mor ...






