Kia Optima 2016–2020 — technical service bulletin
Bulletin TSB_TRA098 · NHTSA communication 10200552 · issued Aug 24, 2021
Technical service bulletin
communication type
Power Train
component
2016–2020
model years
5
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: 7-SPEED DUAL CLUTCH TRANSMISSION (DCT) ANTI-JUDDER LOGIC IMPROVEMENT - This bulletin provides the procedure to update the software logic of the Dual Clutch Transmission (DCT) system on some 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 1, 2020, equipped with Gamma 1.6L T-GDI engine and 7-speed DCT, which might exhibit clutch judder when accelerating from a stop.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.