A device for controlling the brake lights in a motor vehicle having a brake system, designed to be operated by outside forces, is described. The device includes a control device for actuating the brakes of the vehicle in such a manner that an automatic braking operation can be carried out as a function of the vehicle operating conditions, and at least one brake lamp which can be actuated by the control device or by a separate control unit. The control device or the control unit may be designed in such a manner that during an automatic braking operation, the brake lamp is switched on below a predefined boundary speed, as a function of a braking pressure determined in the activated brake of the vehicle, or as a function of a parameter correlating to the braking pressure.