1993 Chevrolet Suburban Owner's Manual - Page 156
1993 Chevrolet Suburban Manual
Page 156 highlights
Rear Window Defogger J K2112 You cantell if yourvehiclehas this option by looking at therearwindow. youseelinesrunningacrosstheglass,youhave it. Thesearethewires whichheatyourwindow. If NOTICE Scraping the inside of your rear window could cut and damage the defogger.Yourwarrantywouldnotcover this damage.Anddon't put to scrape them off. decals there, you might have Forbestresults,clearthewindow I I of asmuchsnow or ice as possiblefirst. To turn ontherearwindowdefogger,findtheswitchmarked REAR DEFOG onyourinstrumentpanel,justbelowtheheatersystem.Presstherightside of theswitch,withthedefogsymbol on it,untilthelightintheswitchcomes will onlywork if theignition on,thenrelease it. Therearwindowdefogger switch is turned to RUN. You canturnthedefogger off atanytimebypressingtheleft,lightedside of off after several minutes, so that the theswitch.Thedefoggerwillshutitself If thedefoggershuts off, andthewindow still glassdoesnotgettoohot. isn'tclear,turnthedefoggeronagain. 3-1 1