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

See also:
Collision warning
The concep
The system issues a two-phase warning of a
danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings
may vary depending on the current driving situation.
...
Measurement
Measurements are made by ultrasound sensors
in the bumpers.
The range is approx. 6 ft/2 m.
An acoustic warning is first given:
▷ By the front sensors and two rear corner
sensors at approx ...
Information at a glance
Repeatedly pressing the button on the turn signal
lever calls up the following information on the
info display:
▷ Range.
▷ Average fuel consumption.
▷ Average speed.
▷ ...
