See also:

Messages after trip completion
Special messages that are displayed during driving are displayed again after the ignition is switched off. ...

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 ...

The concept
The automatic engine start-stop function helps save fuel. The system switches off the engine during a stop, e. g., in a traffic congestion or at traffic lights. The ignition remains switched on. ...