{"nhtsa_id":10133183,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-16","date":"2018-03-21","document_id":"TSBTRA059_R3","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"TSB - HCU/TCU UPGRADE ? FOR 100MESH SOLENOID EQUIPPED HYBRID TRANSMISSIONS - This bulletin has been revised to include additional information. This bulletin provides information related to a software upgrade of the Hybrid Control Unit (HCU) and the Transmission Control Unit (TCU) of some 2011-2016MY Optima Hybrid (TF HEV) after replacement of the transmission with improved 100 mesh solenoids has taken place. To apply the improved logic, the HCU/TCU should be reprogrammed using the KDS download, as described in this bulletin.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10133183-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10133183-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10133183","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA HYBRID","year_from":2011,"year_to":2016,"match":"base","vehicle_ids":["2011_kia_optima","2012_kia_optima","2013_kia_optima","2014_kia_optima","2015_kia_optima","2016_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":[]}