Kia Optima Hybrid 2011–2015 — technical service bulletin
Bulletin TSBTRA068_CLOSED · NHTSA communication 10144235 · issued Aug 13, 2018
Technical service bulletin
communication type
Electrical System
component
2011–2015
model years
5
vehicle entries
Official summary
Tsb: hcu/tcu logic improvement for dtc p1744 (400 mesh equipped transmissions only) - tsb tra068 closed. Refer to tsb tra079/sa351
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.