See also:

OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can be used to interact with OnStar hands-free calling. See Audio Steering Wheel Controls for more information. On some vehicles, the mute button c ...

Pairing
A Bluetooth-enabled cell phone must be paired to the Bluetooth system and then connected to the vehicle before it can be used. See your cell phone manufacturer's user guide for Bluetooth funct ...

Ending a Call
Turn the Menu knob to select Hang Up, then press SELECT. ...