See also:

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Malfunction
A Check Control message is displayed. Adaptive light control is malfunctioning or has failed. Have the system checked as soon as possible. ...

Indicator/warning lamps
Indicator/warning lamps The indicator and warning lamps can light up in a variety of combinations and colors. Several of the lamps are checked for proper functioning and light up temporarily ...