Black plate (21,1)Cadillac CTS/CTS-V Owner Manual - 2011Instruments and Controls 5-21. Make sure the electricalsystem is not wet. The systemcould be wet if the vehicle wasdriven through a deep puddle ofwater. The condition is usuallycorrected when the electricalsystem dries out. A few drivingtrips should turn the light off.. Make sure to fuel the vehiclewith quality fuel. Poor fuel qualitycauses the engine not to run asefficiently as designed and cancause: 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 theseconditions occurs, change thefuel brand used. It will require atleast one full tank of the properfuel to turn the light off.See Recommended Fuel onpage 9‑48.If none of the above have madethe light turn off, your dealercan check the vehicle. The dealerhas the proper test equipmentand diagnostic tools to fix anymechanical or electrical problemsthat might have developed.Emissions Inspection andMaintenance ProgramsSome state/provincial and localgovernments may have programsto inspect the on-vehicle emissioncontrol equipment. For theinspection, the emission systemtest equipment is connectedto the vehicle’s Data LinkConnector (DLC).The DLC is under the instrumentpanel to the left of the steeringwheel. See your dealer if assistanceis needed.The vehicle may not passinspection if:. The malfunction indicatorlamp is on with the enginerunning, or if the light does notcome on when the ignition isturned to ON/RUN while theengine is off.. The critical emissioncontrol systems have notbeen completely diagnosedby the system. This canhappen if the battery hasrecently been replaced orif the battery has run down.InformationProvidedby:
