See also:

Parking on Hills
WARNING Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the trailer ca ...

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 ...

Canceling a Remote Start
To cancel a remote start: • Aim the RKE transmitter at the vehicle and press and hold until the parking lamps turn off. • Turn on the hazard warning flashers. • Turn the ignition on and t ...