Lexus GX460 Manual page 343

Radar sensor
Driver monitor sensor (if equipped)
GX460_U.S.A. (OM60G24U)
2-4. Using other driving systems
The radar sensor detects vehicles
or other obstacles on or near the
road ahead and determines
whether a collision is imminent
based on the position, speed, and
heading of the obstacles.
The driver monitor sensor detects
the direction the driver is facing.
The system determines whether
the driver is facing forward.
2
343