See also:

Malfunction
A Check Control message is displayed. The parking assistant failed. Have the system checked. ...

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. ...

Requirements
Via the Control Display, set a language that is also supported by the voice activation system so that the spoken commands can be identified. Set the language ...