Malfunction

HDC is temporarily unavailable in the following situations due to a high brake temperature:

▷ The LED in the button and the display HDC go out during HDC operation.
▷ The LED in the button and the HDC display do not light up when the button is pressed.

    See also:

    Switching off automatically
    The system switches off and the LED goes out: After approx. 33 ft/10 m when driving forward. Above approx. 9 mph/15 km/h when driving forward. Switch on the system again if necessary. ...

    Activation/deactivation
    Press the button. ...

    Trip computer
    There are two types of computer. ▷ "Onboard info": the values can be reset as often as necessary. ▷ "Trip computer": the values provide an overview of the current ...