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:

    Daytime running lights
    With the ignition switched on, the daytime running lights light up in position 0, or . After the ignition is switched off, the parking lamps light up in position . Activating/deactivating 1. ...

    DTMF suffix dialing
    DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...

    Starting navigation system
    1. Press the button on the controller. 2. "Navigation" The navigation system can also be accessed directly with the button on the controller. ...