An actuating device for controlling a functional component of a motor vehicle is arranged on the motor vehicle. The motor vehicle has a functional component for providing a vehicle function and a display actuation device arranged on the motor vehicle for controlling a functional component. The display actuation device has a display providing visually detectable function actuation elements. In order to activate a vehicle function the display actuation device has a release device so that the display can be actuated between a blocking position blocking the actuation of the function actuation elements and an active position releasing the actuation of the function actuation elements. The display actuation device has a key element that cooperates with the release device and, when cooperating with the release device, actuates the display means into the active position.