See also:

Adjusting the height: manual head restraints
The height of the outer head restraints can be adjusted. To raise: pull. To lower: press the button, arrow 1, and push the head restraint down. ...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...

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