See also:

Malfunction
In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...

Switching the system on/off
Press the left or right side of the button on the CD/DVD player in the rear for the respective page. Rear entertainment and screens are switched on/off. After switching off the ignition, ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...