See also:

RDS Messages
INFO (Information): If the current station has a message, the information symbol displays. Press this button to see the message. The message can display the artist, song title, call in phone num ...

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. ...

Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right and the left speakers, push and release the AUDIO knob until BAL (balance) displays. Turn the knob to move the sound toward the right or the left s ...