Kia Optima Hybrid 2011–2016 — technical service bulletin
Bulletin TSBTRA059_R4 · NHTSA communication 10136505 · issued Apr 10, 2018
Technical service bulletin
communication type
Power Train
component
2011–2016
model years
6
vehicle entries
Official 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.
Vehicles covered
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.