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Adaptive Front Lighting System (AFS) If equipped, the Adaptive Front Lighting System (AFS) automatically adjusts the beam of the headlights to improve your driving view. Electric sensors measure driving speed, steering angle and yaw (the rotation of the car around the vertical axis) to determine the optimum position of the headlights based on current driving conditions. For example, to improve visibility while driving on winding roads at night, the AFS casts the beam in the direction of the curve.
When low beam headlights are turned on and when driving at lower speeds, AFS improves lateral illumination to increase the visibility of pedestrians and curbs, and to improve visibility when turning at a dark intersection, into a driveway, or when making a u-turn. The Adaptive Front Lighting System (AFS) operates whenever headlights are on. If Model S isn't moving, or is moving in reverse, the adaptive headlights do not activate.
This prevents the lights from inadvertently blinding other drivers.
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