Steer-by-wire steering system for a two-track vehicle

A steer-by-wire steering system for a vehicle, comprising:

• a steering handle, having a steering gear actuator mechanically decoupled from the steering handle, a steering sensor which detects a rotational position and/or a rotational movement of the steering handle as a steering command, an electronic control unit which, as a function of the detected steering command, activates the steering gear actuator to set a vehicle wheel steering angle (α), and a hand actuator activatable by the control unit, which generates haptic feedback (R1, R2, R3) for a driver on the steering handle, which is a haptic steering feedback (R1), in which a steering counter torque is applied to the steering handle, in a steering process, a roadway feedback (R2), which correlates with a roadway-side disturbance excitation acting on the vehicle, and a warning feedback (R3), which informs the driver of a fault in the steer-by-wire steering system, wherein the control unit is associated with an evaluation unit, by which the roadway feedback (R2) can at least be weakened or deactivated in the event of the steering system fault so that a perceptibility of the warning feedback (R3) is increased for the driver.