See also:

Notes on Emergency Requests
Do not use the voice activation system to initiate an Emergency Request. In stressful situations, the voice and vocal pitch can change. This can unnecessarily delay the establishment of a teleph ...

Controls
Almost all functions can be operated in the same manner as they are in the front. Special features of operating the system in the rear are described here. ...

End of warning
The warning ends: Automatically after approx. 3 seconds. When returning to your own lane. When braking hard. When using the turn signal. ...