See also:

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. ...

Switching the interior lamps on and off
Press the button. To switch off permanently: press the button for approx. 3 seconds. To clear this setting: press the button. ...

Tone
The sound settings are stored for the remote control currently in use. ...