Notice: If you keep driving your vehicle with thislight on, after awhile, your emission controlsmay not work as well, your fuel economy may notbe as good, and your engine may not run assmoothly. This could lead to costly repairs that maynot be covered by your warranty.Notice: Modifications made to the engine,transmission, exhaust, intake, or fuel system ofyour vehicle or the replacement of the original tireswith other than those of the same Tire PerformanceCriteria (TPC) can affect your vehicle’s emissioncontrols and may cause this light to come on.Modifications to these systems could lead to costlyrepairs not covered by your warranty. This mayalso result in a failure to pass a required EmissionInspection/Maintenance test.This light should come on, as a check to show you it isworking, when the ignition is on and the engine isnot running. If the light does not come on, have itrepaired. This light will also come on during amalfunction in one of two ways:• Light Flashing — A misfire condition has beendetected. A misfire increases vehicle emissionsand may damage the emission control system onyour vehicle. Diagnosis and service may berequired.• Light On Steady — An emission control systemmalfunction has been detected on your vehicle.Diagnosis and service may be required.If the Light is FlashingThe following may prevent more serious damage toyour vehicle:• Reducing vehicle speed• Avoiding hard accelerations• Avoiding steep uphill grades• If you are towing a trailer, reduce the amount ofcargo being hauled as soon as it is possibleIf the light stops flashing and remains on steady,see “If the Light Is On Steady” following.If the light continues to flash, when it is safe to do so,stop the vehicle. Find a safe place to park your vehicle.Turn the key off, wait at least 10 seconds and restartthe engine. If the light remains on steady, see “Ifthe Light Is On Steady” following. If the light is stillflashing, follow the previous steps, and see your dealerfor service as soon as possible.3-43
