System Description [09/2014 - 11/2017]

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Lexus RC 350, 2018 Lexus RC 300, 2017 Lexus RC 350, 2017 Lexus RC 300, and 2017 Lexus RC 200t. However, it is still accessible from the selected car via links, so may be relevant.

AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL

General
The automatic headlight beam level control system ensures forward visibility and prevents dazzling of drivers in oncoming and preceding vehicles by controlling the headlight beam level vertically when the weight of passengers and loads has caused the vehicle attitude to change.

Function of Main Components

Component	Outline
Headlight light control ECU sub-assembly LH and RH	Receives various signals, calculates changes in the vehicle posture, and actuates the headlight leveling motor.
Headlight Leveling Motor	Based on the signals received from the headlight light control ECU sub-assembly LH or RH, the motors move the reflectors in the headlight to change the low beam angle.
Rear Height Control Sensor Sub-assembly LH	Transmits a height control sensor signal to the headlight light control ECU sub-assembly LH.
Brake Actuator Assembly (Skid Control ECU)	Transmits a speed sensor signal to the headlight light control ECU sub-assembly LH.
Main Body ECU (Multiplex Network Body ECU)	Transmits a headlight status signal to the headlight light control ECU sub-assembly LH.
Combination Meter Assembly	If the system malfunctions, the combination meter assembly alerts the driver by flashing the headlight leveling warning light and displaying "Check Headlight System" on the multi-information display in accordance with the signal from the headlight light control ECU sub-assembly LH.