See also:

DISC/AUX Button
Pressing the DISC/AUX button will allow you to switch from AM/FM modes to DISC/AUX mode. ...

Automatic Temperature Control (ATC) — If Equipped
Automatic Temperature Control ...

Cancel Command
At any prompt, after the beep, you can say “Cancel” and you will be returned to the main menu. However, in a few instances the system will take you back to the previous menu. ...