See also:

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. ...

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, ...

Switching off automatically
The system switches off and the LED goes out: ▷ After approx. 160 ft/50 m when driving forward. ▷ Above approx. 22 mph/36 km/h when driving forward. Switch on the system again if nece ...