See also:

Switching the warning function on/off
Press the button ▷ On: the LED lights up. ▷ Off: the LED goes out. The state is stored for the remote control currently in use. ...

Malfunction
The warning lamp comes on when the system has failed. A message appears on the Control Display. More information ...

Malfunction
HDC is temporarily unavailable in the following situations due to a high brake temperature: ▷ The LED in the button and the display HDC go out during HDC operation. ▷ The LED in the ...