See also:

Selecting a category
1.  "Radio" 2.  "Satellite radio" 3.  "Category" 4.  Select the desired category. ...

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 ...

Tire Pressure Monitor TPM
The concept The tire inflation pressure is measured in the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. ...