2013 Lexus LX 570 Owners Manual - Page 211

2-3. Operating the lights and wipers n Daytime running light system l To make your vehicle more visible to other drivers, the parking lights turn on automatically (at an increased intensity) whenever the engine is started and the parking brake is released. Daytime running lights are not designed for use at night. l Compared to turning on the headlights, the daytime running light system offers greater durability and consumes less electricity, so it can help improve fuel economy. n Headlight control sensor The sensor may not function properly if an object is placed on the sensor, or anything that blocks the sensor is affixed to the windshield. Doing so interferes with the sensor detecting the level of ambient light and may cause the automatic headlight system to malfunction n Automatic light off system l When the headlights are on: The headlights and tail lights turn off 30 seconds after a door is opened and closed if the "ENGINE START STOP" switch has been switched to ACCESSORY or OFF mode. l When only the tail lights are on: The tail lights turn off automatically if the "ENGINE START STOP" switch is switched to ACCESSORY or OFF mode and driver's door is opened. To turn the lights on again, turn the "ENGINE START STOP" switch to IGNITION ON mode, or turn the light switch off once and then back to the or position. 206 LX570_U (OM60G53U)