{"nhtsa_id":10089471,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-25","date":"2016-03-18","document_id":"TSBSC126","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"VOLUNTARY EMISSIONS SERVICE CAMPAIGN: ENGINE CONTROL MODULE SOFTWARE UPDATE (SC 126) - THIS BULLETIN PROVIDES INFORMATION RELATED TO UPDATING THE SOFTWARE PROGRAMMING (CALIBRATION) OF THE ENGINE CONTROL MODULE (ECM) ON SOME 2011MY OPTIMA (TF) VEHICLES EQUIPPED WITH A 2.4L ENGINE AND CALIFORNIA EMISSIONS, PRODUCED FROM OCTOBER 14, 2010 THROUGH SEPTEMBER 9, 2011, WHICH MAY HAVE ENGINE CALIBRATIONS THAT WERE NOT OPTIMIZED FOR EMISSIONS WHEN THE VEHICLE IS WARMING UP. THESE CALIBRATIONS MAY CAUSE THE VEHICLE TO RELEASE AIR POLLUTANTS WHICH EXCEED CALIFORNIA AIR RESOURCE BOARD (CARB) EMISSIONS REGULATIONS. TO CORRECT THIS CONDITION, KIA IS REQUESTING THE COMPLETION OF THIS VOLUNTARY EMISSIONS SERVICE CAMPAIGN ON ALL AFFECTED 2011MY OPTIMA (TF) VEHICLES. FOR CONFIRMATION THAT THE LATEST REFLASH HAS BEEN DONE TO A VEHICLE YOU ARE WORKING ON, VERIFY THE ROM ID USING THE TABLES IN THIS TSB.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089471","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"FORTE","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_kia_forte"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}