2009 Lexus SC 430 Owners Manual - Page 124

2-3. Operating the headlight and windshield wipers Daytime running light system The headlights turn on automatically (at a reduced intensity) whenever the engine is started and the parking brake is released to make your vehicle more visible to other drivers. Daytime running lights are not designed for use at night. Adaptive front lighting system (AFS) To improve road illumination when turning, the right side headlight moves right on right turns, and the left side headlight moves left on left turns. Adaptive front lighting system cancel switch 1 2 Inoperative Operative When the system is canceled, the "AFS OFF" indicator lights up in the instrument cluster. n Headlight control sensor The sensor may not function properly if an object is placed on the sensor, or anything that blocks the sensor is affixed to the windshield. Doing so interferes with the sensor detecting the level of ambient light and may cause the automatic headlight system malfunction. 126