Hyundai IONIQ 9 2026 — technical service bulletin
Bulletin 26-EV-006H TSB · NHTSA communication 11036619 · issued Aug 19, 2026
Technical service bulletin
communication type
Fuel/propulsion System
component
2026
model years
1
vehicle entries
Official summary
Some IONIQ 9 (ME1A EV) vehicles may illuminate a MIL warning light with DTC P0AA600 and/or P1AA800 with limited charging capabilities. This bulletin provides instructions to replace the Battery System Assembly (BSA) if necessary.
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.