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. ...

Screw thread
Push out the cover by pressing on the top edge. ...

Switching on/off
1. "Settings" 2. "Head-up display" 3. "Head-up display" Switch the Head-up Display ON/OFF as required. ...