A vehicle, a user interface (1), and a method for reducing light emission of a display device (2, 2a) of a vehicle are proposed. The method comprises the steps of: - receiving a user input with a predefined minimum duration, hereinafter referred to as a "long-press gesture", followed in time by - receiving a predefined swiping gesture, and in response thereto - reducing the light emission of the display device (2, 2a) of the vehicle.
