See also:

Satellite Radio
Vehicles with an XM™ Satellite Radio tuner and a valid XM Satellite Radio subscription can receive XM programming. ...

Voice Recognition
The navigation system's voice recognition allows for hands-free operation of the navigation system, audio system, and OnStar (if equipped) features. Voice recognition can be used when the ignit ...

Control Buttons
The knobs and buttons used to control the radio are: (XM): Press to choose the XM band (if equipped). TUNE/TONE: Turn to search for stations. Press to enter the Tone menu. MENU/SELECT: Tur ...