See also:

Activating HDC
Press the button; the LED above the button lights up. ...

Display
1 Lane departure warning 2 Active Cruise Control 3 Desired speed 4 Navigation system 5 Speed The collision warning, Night Vision pedestrian warning, or Check Control messages are displayed ...

Switching the warning function on/off
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. ...