Turn the knurled ring to 
.
The warning light 
on the instrument
cluster will come on.
See also:
Rear Park Assist — If Equipped
The Rear Park Assist system provides an audible indication of the distance between
the rear fascia/bumper and a detected obstacle when backing up, e.g. during a parking
maneuver. Refer to the “Par ...
Coin tray
A coin tray may be found on the dashboard on the central tunnel according to
the versions. ...
Cleaning The Rear Park Assist System
Clean the Rear Park Assist sensors with water, car wash soap and a soft cloth.
Do not use rough or hard cloths. In washing stations, clean sensors quickly keeping
the vapor jet/high pressure washi ...