See also:

Turn signal
Do not fold in the exterior mirrors During driving and during the operation of the turn signals/warning flashers, do not fold in the exterior mirror, or else the additional flasher lights ...

Activating HDC
Activating HDC Press the button; the LED above the button lights up. The LED flashes when the brakes are applied automatically. ...

Switching off automatically
The system switches off and the LED goes out: ▷ After approx. 165 ft/50 m when driving forward. ▷ After approx. 22 mph/35 km/h when driving forward. Switch on the system again if nece ...