{"nhtsa_id":10109683,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-02","date":"2016-10-11","document_id":"TSB-ENG160","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"TSB: ECU UPGRADE ? MIL ON WITH DTC(s) P0420/P0171 - This bulletin provides information related to the ECU software upgrade for some 2012~2015MY Optima (QF) vehicles, produced from August 12, 2011 to October 2, 2015, some 2012~2015MY Sorento (XMa) vehicles, produced from April 19, 2011 to December 11, 2014, some 2011~2015MY Optima (TF) vehicles, produced from August 12, 2010 to July 23, 2015, and some 2014~2016MY Sportage (SL) vehicles, produced from September 30, 2013 to November 16, 2015, which may experience a malfunction indicator lamp (MIL) illuminated with the Electronic Control Unit (ECU) system-related DTC(s): P0420 and possibly P0171. This concern occurs most commonly during prolonged engine braking while descending a steep grade.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10109683-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10109683-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10109683","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["P0171","P0420"],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA","year_from":2011,"year_to":2015,"match":"exact","vehicle_ids":["2011_kia_optima","2012_kia_optima","2013_kia_optima","2014_kia_optima","2015_kia_optima"]},{"make":"KIA","model":"SORENTO","year_from":2012,"year_to":2015,"match":"exact","vehicle_ids":["2012_kia_sorento","2013_kia_sorento","2014_kia_sorento","2015_kia_sorento"]},{"make":"KIA","model":"SPORTAGE","year_from":2014,"year_to":2016,"match":"exact","vehicle_ids":["2014_kia_sportage","2015_kia_sportage","2016_kia_sportage"]}],"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":[]}