See also:

Radio(s)
: Press to turn the system on and off. Turn to increase or decrease the volume. RADIO/BAND or SRCE: Press to choose between FM, AM, or XM™, if equipped. TUNE/MENU: Turn to select radio stations. ...

Power Outlets
The accessory power outlet can be used to plug in electrical equipment, such as a cell phone or MP3 player. This outlet is located under the armrest inside the center console storage. The outlet is ...

Your Responsibility
Increase the volume of the radio if the OnStar advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Press and request a vehicle ...