Lexus LS 600h L 2012 Owner's Manual page 221

2-3. Operating the lights and windshield wipers
AFS
AFS (Adaptive Front-lighting System) improves visibility at intersections
and on curves by automatically adjusting the direction of the light axis of
the headlights according to vehicle speed and the degree of the tire
angle that are controlled by steering input.
Operates at speeds of 6 mph (10 km/h) or higher
■
Deactivating AFS
Daytime running light system
■
To make your vehicle more visible to other drivers, the headlights turn on auto-
●
matically (at a reduced intensity) whenever the hybrid system is started and the
parking brake is released. Daytime running lights are not designed for use at
night.
Compared to turning on the headlights, the daytime running light system offers
●
greater durability and consumes less electricity, so it can help improve fuel
economy.
Headlight control sensor
■
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On/off
The indicator turns on when the
AFS is deactivated.
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.