Why is the "AFS off" light on?

your lexus has the automatic adjusting headlight system known as AFS. it has modules and sensors and actuators that allow the headlights to move as you turn the car. check your dash to see if there is a switch labelled "AFS OFF", you may have shut the the system off by mistake. if you don't have such a switch, this will need to go to a Lexus dealer or an independent shop that has the Toyota/Lexus factory scan tool.

afs of toyota lexus