See also:

The concept
The concept Two radar sensors below the rear bumper monitor the area behind and next to the vehicle at speeds above approx. 30 mph/50 km/h. The system indicates whether there are vehicles ...

Warning stages
Prewarning This warning is issued, for example, when there is the impending danger of a collision or the distance to the vehicle ahead is too small. Acute warning Warning of the imminent danger ...

Switching on automatically
With the engine running or the ignition switched on, shift the selector lever into position R. ...