LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Electrical >> Body Electrical >> OEM System Circuits >> Automatic Light Control and Light Auto Turn Off System >> System Outline
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Outline

Automatic Light Control Operation 

The automatic light control system operates when the light control switch is turned to AUTO. The automatic light control sensor detects the ambient light around the vehicle. The system then automatically turns the taillights and headlights on if the light brightness drops below a safe level and turns them off when the ambient light becomes bright enough to drive safely.

Light Auto Turn Off Operation 

When lights other than the headlights are lit and the light control switch is set to 'Tail' or 'AUTO', those lights will be turned OFF if the engine switch is changed from on (IG) to off and the driver side door is opened.

When the headlights are lit and the light control switch is set to 'Head' or 'AUTO', if the engine switch is changed from on (IG) to off and the light OFF delay time (30 seconds) has passed since any of the doors were opened and then closed, or all the doors have been locked, operating the wireless door lock function will turn the headlights, taillights and front fog lights OFF.