See also:

Note
Children in the vehicle Do not leave children unattended in the vehicle; otherwise, they could endanger themselves and other persons, e.g., by opening the doors.◀ ...

Central locking system
The concept The central locking system becomes active when the driver's door is closed. The system simultaneously engages and releases the locks on the following: Doors. Trunk lid. Fuel ...

Deactivating HDC
Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...