Light Auto Turn-Off System
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
When the headlights and taillights are illuminated through the operation of the light control switch or the activation of the automatic light control system, if the ignition switch is turned OFF and all the doors are closed, this system continues to illuminate the headlights and taillights for approximately 30 seconds and then turns OFF the headlights. However, the headlights and taillights are turned OFF immediately when the vehicle is locked by the wireless door lock remote control. This system is controlled by the Body ECU.