2010 Lexus RX 350 Navigation Manual - Page 259

AIR CONDITIONING (f) Windshield wiper de−icer (if equipped) This feature is used to prevent ice from building up on the windshield and wiper blades. The windshield wiper de−icer can be operated when the "ENGINE START STOP" switch is in IGNITION ON mode. (g) Rear window and outside rear view mirror defogging Turns the windshield wiper de−icer on/off. The windshield wiper de−icer will automatically turn off after approximately 15 minutes. CAUTION When the windshield wiper de−icer is on Do not touch the lower part of the windshield or the side of the front pillars, as the surfaces can become very hot and burn you. To turn the electric rear window and outside rear view mirror defogger on, push the button above. The "ENGINE START STOP" switch must be in IGNITION ON mode. The thin heater wires on the inside of the rear window and the heater panels in the outside rear view mirrors will quickly clear the surface. Keep your hands off the mirror faces when the system is on. The indicator light is on when the defogger is operating. CAUTION When the outside rear view mirror defoggers are on, do not touch the outside surface of the rear view mirror as it can become very hot and burn you. 287