See also:

Air Vents
Use the air outlets located in the center and on the side of the instrument panel to direct the airflow. Use the thumbwheels near the air outlets to open or close off the airflow. Operation Tips • ...

Roadside Assistance Program
U.S.: 1-888-881-3302 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0801 As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. ...

Format
The radio can play.mp3 or .wma files that were recorded onto a CD-R or CD-RW disc. The USB port can play.mp3 and .wma files stored on a USB storage device as well as AAC files that are stored on an i ...