Automatic beam-axis adjustment system for vehicular headlights

In an automatic beam-axis adjustment system, a beam-axis of a headlight (10L,10R) is gradually swivel to a position determined based on a steering angle (STA) of a steering wheel (17). The beam-axis returns to the initial position and a swivel control is inhibited when a vehicle is at a stop or slowly moving in an intersection, regardless of the steering angle (STA). The swivel control is restarted after the vehicle starts running straight ahead. In other words, the swivel control is not restarted until the vehicle starts running straight ahead even when the speed (SPD) of the vehicle exceeds a predetermined value (SPDth). Therefore, the movement of the headlight (10L,10R) does not disturb a driver.