See also:

Display
Display 1. The system is activated. 2. Arrows: at least one lane marking was detected and warnings can be issued. ...

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

Following part replacement
The same breaking in procedures should be observed if any of the components mentioned above have to be renewed in the course of the vehicle's operating life. ...