See also:

Adjusting volume
Turn the volume knob during the spoken instruction to select the desired volume. > The volume remains the same, even if the volume of other audio sources is changed. > The volume is stored for ...

Switching the high beams on and off manually
High beams on, arrow 1. High beams off/headlamp flasher, arrow 2. To reactivate the High-beam Assistant, press the button on the turn signal lever. ...

Deactivating HDC
Press the button again; the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...