1993 GMC Jimmy Owner's Manual - Page 303

Exhaust System To help prevent damage to your exhaust system, do not continue to drive your vehicle if you notice: Engine misfiring Loss of performance Otherunusualoperatingconditions Haveyourengineandexhaustsystemservicedregularly. Three-way Catalytic Converter Your vehicle's three-way catalytic converter is designed to reduce the f pollutants in yourvehicle'sexhaust.Useonlyunleadedfuel in yourvehicle. I you use leaded fuel, you could damage your three-way catalytic converter, and other 'engine components. The MalfunctionIndicator(SERVICEENGINESOON) lamp on your instrumentpanellets youknowwhenyouremissionsystemneedsservice. Thelightwillcomeonbrieflywhenyoustartyourengine to letyouknow If it doesnotcomeonwhenyoustartyour thatthesystemisworking. may engine, or if it comes on and stays on while you're driving, your system still bedriveable,butyoushouldhaveyour needservice.Yourvehicleshould systemservicedrightaway. Loading Your Vehicle SEE OWNERS MANUALFOR ADDITtUNAL INFORMATION 4 K3651 TheCertificationRirelabelisfoundonthedriver'sdoorlockpillar.Thelabel showsthesizeofyouroriginal tires and the inflation pressures needed to 6-37