See also:

Switching the system on/off
Switching off At the lowest fan speed, press the left side of the button on the driver's side. Switching on Press any button. ...

Switching DVD system on/off
Press the button on the CD-/DVD player or under the desired screen. The DVD system switches on automatically when a CD or DVD is inserted. ...

Safety switch for the rear
Press the button on the driver's door if children are being transported in the rear. This locks various functions so that they cannot be operated from the rear: safety switch. ...