1998 Toyota Avalon Owners Manual - Page 83

'98 AVALON (USA/CANADA) −U CAUTION Since the mirror surfaces can get hot, keep your hands off them when the defogger switch is on. The system will automatically shut off after the defogger has operated about 15 minutes. Make sure you turn the defoggers off when the surfaces are clear. Leaving the defoggers on for a long time could cause the battery to discharge, especially during stop−and−go driving. The defoggers are not designed for drying rain water or for melting snow. If the outside rear view mirror are heavily coated with ice, use a spray de−icer before operating the switch. NOTICE When cleaning the inside of the rear window, be careful not to scratch or damage the heater wires. 83