Automatic alignment system providing controls of the angle between the tower / trailer and the rotation way of the wheels, providing the performance of the automatic alignment process in accordance with these controls in vehicles that are used in heavy load carriage, and having a hydro-mechanical steering system, • a tower direction of rotation detection part, which is linked to the front steering center so that it moves according the to the steering action of the tower in respect to the trailer, and that when the tower and the trailer are aligned, it will be sensed by the right front inductive sensor and the left front inductive sensor, • a wheel direction of steering detection part, which is linked to the rear steering center so that it moves according to the steering action of the rear wheels, and that when the rear wheels are aligned, it will be sensed by the right rear inductive sensor and the left rear inductive sensor, and when wheels are steered to a direction, it will be sensed by the inductive sensor of the steering direction (40, 40'), and • an electronic control circuit that provides the performance of automatic alignment by controlling the hydro-mechanical steering system; characterized by comprising: - one right front inductive sensor and one left front inductive sensor which are assembled on the front steering center, - one right rear inductive sensor and one left rear inductive sensor, which are assembled on the rear steering center, and • a wired or wireless remote control with a light warning, which provides commands to perform left steering, right steering, and automatic alignment functions by working connectedly with the electric control circuit; further characterized in that the electronic control circuit controls the hydro-mechanical steering system in accordance with the signals received from the mentioned inductive sensors (30, 30', 40, 40'). • a tower direction of rotation detection part, which is linked to the front steering center so that it moves according the to the steering action of the tower in respect to the trailer, and that when the tower and the trailer are aligned, it will be sensed by the right front inductive sensor and the left front inductive sensor, • a wheel direction of steering detection part, which is linked to the rear steering center so that it moves according to the steering action of the rear wheels, and that when the rear wheels are aligned, it will be sensed by the right rear inductive sensor and the left rear inductive sensor, and when wheels are steered to a direction, it will be sensed by the inductive sensor of the steering direction (40, 40'), and • an electronic control circuit that provides the performance of automatic alignment by controlling the hydro-mechanical steering system; characterized by comprising: - one right front inductive sensor and one left front inductive sensor which are assembled on the front steering center, - one right rear inductive sensor and one left rear inductive sensor, which are assembled on the rear steering center, and - one right front inductive sensor and one left front inductive sensor which are assembled on the front steering center, - one right rear inductive sensor and one left rear inductive sensor, which are assembled on the rear steering center, and • a wired or wireless remote control with a light warning, which provides commands to perform left steering, right steering, and automatic alignment functions by working connectedly with the electric control circuit; further characterized in that the electronic control circuit controls the hydro-mechanical steering system in accordance with the signals received from the mentioned inductive sensors (30, 30', 40, 40').