Hyundai Elantra 2018–2020 — technical service bulletin
Bulletin 21-ST-003H · NHTSA communication 10203271 · issued Oct 1, 2021
Technical service bulletin
communication type
Steering
component
2018–2020
model years
3
vehicle entries
Official summary
Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing.
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.