See also:

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

Lighter
Danger of burns Only hold the hot lighter by its knob; otherwise, there is the danger of getting burned. Switch off the ignition and take the remote control with you when leaving the vehicle so ...

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