See also:

Audio System Basic Operation
Models without navigation system To use the audio system function, the ignition switch must be in ACCESSORY   or ON . Use the selector knob or SETUP button to access some audio functions. ...

Operating the System
If you do not operate the    system from the front panel for more than 20 seconds, the indicator in the button goes off, and the front display returns to what has previously been displayed ...

Automatic Climate Control Sensors
The automatic climate control system is equipped with sensors. Do not cover or spill any liquid on them. ...