See also:

Rear Audio Controller (RAC)
The vehicle may have the Rear Audio Controller (RAC). Certain radio functions can be controlled with the RAC. or (Next/Previous): Press the up or down arrows to go to the next or to the previou ...

Rear Window Lockout
The rear window lockout feature prevents the rear passenger windows from operating, except from the driver position. Press to activate the rear window lockout switch. The LED light comes on when a ...

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 ...