Hyundai Kona Electric 2019–2023 — technical service bulletin
Bulletin 23-01-073H-1 · NHTSA communication 10244988 · issued Oct 17, 2023
Technical service bulletin
communication type
Power Train
component
2019–2023
model years
5
vehicle entries
Official summary
Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with Diagnostic Trouble Code (DTC) P1AA6 to P1AAF found stored. The Battery Management System (BMS) software update will be performed to enhance battery diagnostics logic. The service procedure contained in TSB 23-01-073H-1 (or latest version) is summarized as follows: â ¢ Vehicles that do not have EV Warning Light â ONâ will only need the BMS software update. â ¢ Certain vehicles incurring EV Warning Light â ONâ and DTC P1AA6 found stored with Freeze Frame Data Information Code 1=128 will only req
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.