See also:

AM
The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. For better radio reception, most AM r ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...

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. ...