See also:

Lane Change Warning System monitors vehicles following behind
Inattentiveness or misjudgement of the distance and speed of a vehicle approaching from behind can lead the driver into a critical situation when changing lanes. The optional Lane Change Warning S ...

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. ...

Closing the trunk lid
Drive with the trunk lid closed Only drive with the tailgate closed; otherwise, in the event of an accident or braking or evasive maneuvers, passengers or other road users may be injured or th ...