A vehicle system has a steering circuit which includes a steering actuator (12) supplied with pressurise fluid from a pressure source to turn an associated vehicle wheel (13) to the left or right in response to the movement of the steering wheel. A feedback circuit (17) is provided which includes a steering motor (18) connected with the steering wheel (13) and supplied with pressurised fluid via an electronically controlled feedback control valve means (21,24) in response to signals received from a control unit (23) to generate a steering feedback force acting on the steering wheel.