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

See also:
Hydroplaning
On wet or slushy roads, a wedge of water can
form between the tires and road surface.
This phenomenon is referred to as hydroplaning.
It is characterized by a partial or complete
loss of contact ...
Safety switch for the rear
Press the button on the driver's
door if
children are being transported in the
rear.
This locks the rear window switches so that the
windows cannot be operated from the rear:
safety switch. ...
Software Update
The vehicle supports various external devices
depending on the current software version. With
a software update, the vehicle can support new
cell phones* or new external devices*.
The updating ...
