Kia Optima Hybrid 2011–2016 — technical service bulletin
Bulletin TSBTRA059R2 · NHTSA communication 10109867 · issued May 11, 2017
Technical service bulletin
communication type
Power Train
component
2011–2016
model years
6
vehicle entries
Official summary
TSB:HCU/TCU UPGRADE ? FOR 100 MESH SOLENOID EQUIPPED HYBRID TRANSMISSIONS - 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 GDS/KDS download, as described in this bulletin.
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.