2009 Lexus LX 570 Owners Manual - Page 334

3-2. Using the air conditioning system and defogger Rear window and outside rear view mirror defoggers These features are used to defog the rear window, and to remove raindrops, dew and frost from the outside rear view mirrors. On/off The defoggers will automatically turn off after approximately 15 minutes. Pressing the button again also turns the defoggers off. n The rear window and outside rear view mirror defoggers can be operated when The "ENGINE START STOP" switch is in IGNITION ON mode. CAUTION n When the outside rear view mirror defoggers are on Do not touch the rear view mirror surfaces, as they can become very hot and burn you. 338