{"nhtsa_id":10089791,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-27","date":"2015-02-11","document_id":"SC114OWNEROPTIMA","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"summary":"OWNER LETTER: DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICA, INC. IS CONDUCTING A VOLUNTARY SERVICE CAMPAIGN TO UPDATE THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012-2013 MY OPTIMA VEHICLES WHICH COULD OTHERWISE EXPERIENCE A DECREASE IN ACCELERATION ACCOMPANIED BY THE ILLUMINATION OF THE “CHECK ENGINE” OR MALFUNCTION INDICATOR LAMP (MIL).","document":null,"url":"https://open.wenmarpro.com/bulletins/10089791","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_kia_optima","2013_kia_optima"]}],"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":[]}