See also:

Manual release
The parking brake can be released manually in the event of a power failure or electrical fault. Before releasing, secure the vehicle against rolling Before releasing the parking brake manually, ...

Deleting all stored programs
Press both outer memory buttons 1 for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

TeleService Battery Guard
TeleService Battery Guard continually checks the battery charge level of the vehicle. If the battery charge level falls below a certain value, a notification is automatically sent to your servic ...