While driving on a road that has lane markers, this system recognizes the lane markers using a camera as a sensor to alert the driver when the vehicle deviates from its lane.
If the system judges that the vehicle has deviated from its lane, it alerts the driver using a buzzer and indications on the multi-information display.
Camera sensor

Turning the lda system onUniform tire quality grading
This information has been prepared in accordance with regulations
issued by the national highway traffic safety administration of the
u.S. Department of transportation.
It provides the purchasers and/or prospective purchasers of toyota
vehicles with information on uniform tire quality grading. ...