{"nhtsa_id":10163445,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-08-07","date":"2019-07-05","document_id":"TSBCHA060_R5","mfr_campaign":null,"replaces":null,"component":"STEERING: STEERING WHEEL/HANDLE BAR; STEERING","mfr_system":null,"summary":"TSB: ECU UPGRADE - STEERING LOGIC IMPROVEMENT - This bulletin has been revised to include additional information. This bulletin provides information related to the MDPS ECU software upgrade for some 2012-2014MY Optima (QF), produced from August 2, 2010 through July 27, 2014, and 2016-2018MY Sorento (UMa) vehicles, produced from October 27, 2014 through August 22, 2017, which may experience a notchy feel in the steering wheel. To correct this condition, the vehicle should be evaluated using the MDPS Effort Measurement Software detailed in the repair procedure starting on page 2 to determine whether an improved steering logic should be installed in the MDPS ECU, or if the Steering Column and Housing Assembly replacement is required.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10163445-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10163445-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10163445","components":[{"id":"steering","name":"Steering","parent":null},{"id":"steering-column","name":"Steering column and wheel","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_kia_optima","2012_kia_optima","2013_kia_optima","2014_kia_optima"]},{"make":"KIA","model":"SORENTO","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_kia_sorento","2017_kia_sorento","2018_kia_sorento"]}],"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":[]}