Model S is equipped with a reading light on each side of the rear seats, located above the door and next to the coat hangers (see Coat Hangers ). To turn a reading light on or off, press its lens. If you leave a reading light turned on, it automatically turns off when Model S powers off.
Headlights After Exit
When you stop driving and park Model S in low lighting conditions, exterior lights temporarily remain illuminated. They automatically turn off after one minute or when you lock Model S whichever comes first.
To turn this feature on and off, touch Controls > Lights > Headlights After Exit. When Headlights After Exit is off, the headlights turn off immediately when you engage Park and open a door.
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.
If the AFS fails, the instrument panel displays an alert. Contact Tesla Service.