A brake system of a vehicle is described, including a vehicle dynamics controller (ESP) for influencing the vehicle behavior in the dynamic driving limit range, with a service brake valve for generating a pressure dependent on the driver's desired braking, at least one pressure sensor for generating a signal dependent on the pressure generated by the service brake valve, at least one shuttle valve including a valve member for transmitting the pressure generated by the service brake valve or an accumulator pressure or a pressure derived from the latter to at least one brake cylinder, depending on the level of the respective pressure acting on the valve member, in which at least one pressure sensor is integrated in a shuttle valve and is combined therewith to form an assembly.