The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Panic mode
In dangerous situations, trigger the alarm system:
Press the button on the remote
control for at
least 3 seconds.
To switch off the alarm: press any button. ...
Switching on/off
Press the button.
On: the LED lights up.
Off: the LED goes out.
The system can issue warnings at speeds above
approx. 40 mph/65 km/h.
The state is stored for the remote control currentl ...
Closing the windows and glass
sunroof/panoramic glass sunroof
Driving with the glass sunroof/panoramic glass
sunroof and windows open results in increased
air resistance and raises fuel consumption. ...
