Kia EV9 2025 — technical service bulletin
Bulletin TSB_ELE393 · NHTSA communication 11021993 · issued Aug 19, 2025
Technical service bulletin
communication type
Electrical System
component
2025
model years
1
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: FRONT MOTOR AND REDUCTION GEAR (GDU) ASSEMBLY REPLACEMENT (SA622) - This bulletin provides information to replace the Front Motor Reduction Gear Assembly (GDU) on certain 2025MY EV9 (MV1a) vehicles produced from November 25, 2024 through December 06, 2025 that were assembled at the Kia assembly plant in the US. The affected vehicles may experience abnormal noise coming from the front GDU which is caused by a missing wave washer from the motor inside the front GDU.
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.