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 ...

Camper/Fifth-Wheel Trailer Wiring Package
The seven-wire camper harness is located under the front edge of the pickup box on the driver side of the vehicle, attached to the frame bracket. A connector must be added to the wiring harness which ...

Four Way Power Driver Seat
A. Seat Position Handle B. Height Adjustment Control To adjust a power seat, if equipped: ○ Move the seat forward or rearward using the handle under the front of the seat cushion (A). See ...