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 ...

Manual Mirrors
Vehicles with outside manual mirrors can be adjusted by moving the mirror up and down or left to right to see a little of the side of the vehicle, and have a clear view behind the vehicle. Using hood ...

Trailer Towing
Three important considerations have to do with weight: • The weight of the trailer • The weight of the trailer tongue • The total weight on the vehicle's tires ...