See also:

Radio Settings
Press the Config button on the Home Page or the CONFIG button on the faceplate to enter the menu options. Turn the MENU knob or touch-tap the scroll bar to scroll through the available optio ...

Three-Way Calling
Three-way calling must be supported on the Bluetooth phone and enabled by the wireless service carrier. 1. While on a call, press . The system responds with “Ready,” followed by a tone. 2. Say ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...