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:

    Control Display
    Notes ► To clean the Control Display, follow the care instructions. ► Do not place objects close to the Control Display; otherwise, the Control Display can be damaged. Switching off ...

    Fuses
    Notes Replacing fuses Never attempt to repair a blown fuse and do not replace a defective fuse with a substitute of another color or amperage rating; this could lead to a circuit overload, ul ...

    Environmental conditions
    ► Say the commands, numbers, and letters smoothly and with normal volume, emphasis, and speed. ► Always say commands in the language of the voice activation system. ► When selec ...