Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors.
Call 1-800-GMC-8782 (1-800-462-8782), or write:
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, call 1-800-263-3777
(English) or 1-800-263-7854
(French), or write:
General Motors of Canada Limited
Customer Care Centre, Mail Code:
CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
See also:
Steering Wheel Controls
Some audio steering wheel controls can be adjusted at the steering wheel.
: Press to interact with the available
Bluetooth or OnStar systems.
: Press to silence the vehicle speakers
only. Pre ...
How to Add Coolant to the Coolant Surge Tank for Gasoline Engines
If the vehicle has a diesel engine, see “Cooling System” in the Duramax Diesel Supplement for the proper coolant fill procedure.
WARNING
You can be burned if you spill coolant on hot engine part ...
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS).
The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assem ...