Hyundai IONIQ 5 2025 — service campaign
Bulletin 25-01-056H TSB · NHTSA communication 11022374 · issued Aug 29, 2025
Service campaign
communication type
Power Train
component
2025
model years
1
vehicle entries
Official summary
Certain 2025MY IONIQ 5 (NEA EV) vehicles are equipped with a Motor and Reduction Gear Motor-Gear Drive Unit (MGDU) differential gear assemblies that are missing a wave washer. This can cause the MGDU housing to make noise. Follow the procedure outlined in this TSB to replace the Front or Rear Motor & Reduction Gear assembly.
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.