2008 Toyota RAV4 Owners Manual - Page 151

'08 Rav4_U (L/O 0802) 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 mirrors 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 or connectors. 123 2008 RAV4 from Feb. '08 Prod. (OM42726U)