Abstract: The present invention relates to methods for controlling an electrohydraulic brake system which represent types of emergency braking operating modes being actuated when various malfunctions occur, such as a malfunction caused by a mechanical fault of one of the pressure control valves, of a pressure sensor used to determine the wheel brake pressures, a high-pressure accumulator serving a an auxiliary-pressure source or a pump cooperating with the high-pressure accumulator, a separating valve closing the connections between the wheel brakes and an emergency pressure generator or master brake cylinder as well as when a loss in pressure occurs in any of the wheel brakes associated with the front or the rear axle.