See also:

Text messages
Text messages in combination with a symbol in the instrument cluster explain a Check Control message and the meaning of the indicator and warning lamps. ...

Supplementary text messages
You can call up more information, e.g., on the cause of a malfunction and on how to respond, via Check Control. In urgent cases, this information will be shown as soon as the corresponding lamp ...

Activation/deactivation
Press the button. ...