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. See Accessoriesand Modifications on page 5-3.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 systemon your vehicle. Diagnosis and service maybe required.• 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 doso, stop the vehicle. Find a safe place to park yourvehicle. Turn the key off, wait at least 10 seconds andrestart the engine. If the light remains on steady, see“If the Light Is On Steady” following. If the light isstill flashing, follow the previous steps, and see yourdealer for service as soon as possible.3-42
