See also:

Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States GMC Customer Assistance ...

Engine Exhaust
WARNING Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: • The vehicle idle ...

Memory Seats
On vehicles with the memory feature, the “1” and “2” buttons on the outboard side of the driver seat are used to manually save and recall the driver seat and outside mirror positions. Th ...