See also:

Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...

Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them. To Mute a call 1. Press . The system responds “Ready,” followe ...

Single CD (MP3) Player
To set the time and date: 1. Turn the ignition key to ACC/ACCESSORY or ON/RUN. Press to turn the radio on. 2. Press and the HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) displ ...