Black plate (17,1)Cadillac Escalade/Escalade ESV Owner Manual - 2012Instruments and Controls 5-17vehicle warranty. This couldalso result in a failure topass a required EmissionInspection/Maintenance test.See Accessories andModifications on page 10‑3.This light comes on during amalfunction in one of two ways:Light Flashing: A misfire conditionhas been detected. A misfireincreases vehicle emissions andcould damage the emission controlsystem on the vehicle. Diagnosisand service might be required.To prevent more serious damage tothe vehicle:. Reduce vehicle speed.. Avoid hard accelerations.. Avoid steep uphill grades.. If towing a trailer, reduce theamount of cargo being hauled assoon as it is possible.If the light continues to flash, stopand park the vehicle. Turn thevehicle off, wait at least 10 seconds,and restart the engine. If the light isstill flashing, follow the previoussteps and see your dealer forservice as soon as possible.Light On Steady: An emissioncontrol system malfunction hasbeen detected on the vehicle.Diagnosis and service might berequired.The following may correct anemission system malfunction:. Check that the fuel cap isfully installed. See Filling theTank on page 9‑54. Thediagnostic system can determineif the fuel cap has been left off orimproperly installed. A loose ormissing fuel cap allows fuel toevaporate into the atmosphere.A few driving trips with the capproperly installed should turn thelight off.. Check that good quality fuelis used. Poor fuel qualitycauses the engine not to run asefficiently as designed and maycause stalling after start-up,stalling when the vehicle ischanged into gear, misfiring,hesitation on acceleration,or stumbling on acceleration.These conditions might go awayonce the engine is warmed up.If one or more of these conditionsoccurs, change the fuel brand used.It will require at least one full tank ofthe proper fuel to turn the light off.See Recommended Fuel onpage 9‑51.If none of the above have madethe light turn off, your dealer cancheck the vehicle. The dealerhas the proper test equipmentand diagnostic tools to fix anymechanical or electrical problemsthat might have developed.
