2008 Mazda RX-8 Owner's Manual - Page 186

Driving Your Mazda Switches and Controls Rear Window Defroster The rear window defroster clears frost, fog, and thin ice from the rear window. The ignition switch must be in the ON position. Press the switch to turn on the rear window defroster. The rear window defroster operates for about 15 minutes and turns off automatically. The indicator light illuminates during operation. To turn off the rear window defroster before the 15 minutes has elapsed, press the switch again. Indicator light Horn To sound the horn, press the the steering wheel. mark on CAUTION Don't use sharp instruments or window cleaners with abrasives to clean the inside of the rear window surface. They may damage the defroster grid inside the window. NOTE This defroster is not designed for melting snow. If there is an accumulation of snow on the rear window, remove it before using the defroster. 5-60