Steering system includes all the parts necessary for driving from the steering wheel to the steering gear. Steering provides change in direction when driving. Therefore, each car has this system. Modern cars are equipped with steering booster. Rotation of the steering wheel is supported by the booster, for example, a hydraulic one. Thus, only minor effort is required from the driver. In older vehicles the steering motion is purely mechanical, so that drivers must make efforts especially at low speeds.

In motor cars the steering is usually implemented only on the front axle. But the rear axle is fixed. It is also used axial steering when each wheel is independently suspended. The driver controls the steering with the steering wheel. Even if the steering wheel booster is faulty, it is still possible to steer.