See also:

Mirror display
The point of the compass is displayed in the mirror when driving straight. ...

Switching off automatically
The system switches off and the LED goes out: After approx. 160 ft/50 m when driving forward. Above approx. 22 mph/36 km/h when driving forward. Switch on the system again if necessary. ...

Displaying stored Check Control messages
1. "Vehicle Info" 2. "Vehicle status" 3. "Check Control" 4. Select the text message. Messages after trip completion Malfunctions indicated during a trip are display ...