See also:

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. ...

Deleting all stored programs
Press the left and right memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

Last destinations
The last destinations are stored automatically. These destinations can be called up and used as a destination for destination guidance. Opening the last destinations1.  "Navigation" ...