See also:

Malfunction
The warning lamp comes on when the system has failed. A message appears on the Control Display. More information ...

Message when the system was notreset
A Check Control message is displayed. The system detected a wheel change but was not reset. Warnings regarding the current tire inflation pressure are not reliable. Check the tire inflation ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. If Top View is displayed, switch on the backup camera via the iDrive. ...