Display in the instrument cluster
The collision warning can be issued in the instrument cluster, in the Head-up Display, and acoustically.
Warning stages

Adapting your speed and driving
style
The display does not relieve the driver of the responsibility to adapt his or her driving speed and style to the traffic conditions.
See also:
Contacts
...
Malfunction
A message is displayed in the instrument cluster.
HDC is not available, e.g., due to elevated
brake temperatures. ...
Radar sensor
Position
Radar sensor
Dirty or covered sensor
A dirty or covered sensor may hinder the detection
of vehicles.
▷ If necessary, clean the radar sensor. Remove
layers of snow and ice care ...
