See also:

OnStar® Hands-Free Calling
OnStar® Hands-Free Calling allows eligible OnStar® subscribers to make and receive calls using voice commands. Hands-Free Calling is fully integrated into the vehicle, and can be used with OnSta ...

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. ...

RDS (Radio Data System)
The radio may have RDS. The RDS feature is available for use only on FM stations that broadcast RDS information. This feature only works when the information from the radio station is availa ...