2007 Lexus GS 350 Owners Manual - Page 273

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. Press the button. Press the button to turn on the rear window and outside rear view mirror defoggers. The defoggers will automatically turn off after approximately 15 minutes. Pressing the button again also turns the defoggers off. n Operating conditions The engine switch must be in the "IG-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. NOTICE n To prevent battery discharge Turn the defoggers off when the engine is not running. 198