See also:

Malfunction
A Check Control message is displayed. On the Control Display, the areas in front of and behind the vehicle are shaded. PDC has failed. Have the system checked. To ensure full operability: ` ...

Indicator/warning lamps
The indicator lamp flashes: DSC controls the drive forces and brake forces. The indicator lamp lights up: DSC has failed. ...

Deleting all stored programs
Press the two outer memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually ...