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

See also:
Mobile communication devices in the vehicle
Mobile communication devices in
the vehicle
It is advised that you do not use mobile communication
devices, e.g., mobile phones, inside the
vehicle without connecting them directly to the
ex ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment is also described that is not
available in a vehicle, ...
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. ...
