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 Rearview Mirror
Hold the mirror in the center to move it for a clearer view of behind your vehicle. Adjust the mirror to avoid glare from the headlamps behind you. Push the tab at the bottom of the mirror forward for ...

Remote Control Buttons
(Power): Press this button to turn the video screen on and off. (Illumination): Press this button to turn the remote control backlight on. The backlight automatically times out after 7 to 10 second ...