See also:

Turning the System On or Off
/VOL (Power/Volume): Press to turn the system on and off. Automatic Switch-Off If the infotainment system has been turned on after the ignition is turned off, the system will turn off automatic ...

Accepting or Declining a Call
When an incoming call is received, the infotainment system mutes and a ring tone is heard in the vehicle. Accepting a Call Turn the Menu knob to “Answer” and press SELECT to accept the c ...

Navigation
This display is used for the OnStar or Navigation System Turn-by-Turn guidance. See OnStar Overview or the navigation manual, if the vehicle has navigation, for more information. ...