{"nhtsa_id":10162049,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-07-04","date":"2019-06-11","document_id":"TSBTRA078","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"TSB: TRANSMISSION LOGIC IMPROVEMENT - This bulletin provides the procedure to optimize the logic of the Transmission Control Unit (TCU) on 2017-2018MY Soul (PS) and Forte (YDm) and 2016-2018MY Optima (JFa) vehicles equipped with 1.6T GDI that have one of the following three components replaced: Dual Clutch Transmission (DCT) assembly; Transmission Control Unit (TCU), and Double Clutch Set.The friction material of the double clutch set has been changed and a TCU logic optimization must be performed in order to prevent initial shift shock.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10162049-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10162049-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10162049","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"FORTE","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_kia_forte","2018_kia_forte"]},{"make":"KIA","model":"OPTIMA","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_kia_optima","2017_kia_optima","2018_kia_optima"]},{"make":"KIA","model":"SOUL","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_kia_soul","2018_kia_soul"]}],"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":[]}