Hyundai Elantra N 2021–2023 — technical service bulletin
Bulletin 22-AT-011H · NHTSA communication 10225459 · issued Oct 31, 2022
Technical service bulletin
communication type
Power Train
component
2021–2023
model years
11
vehicle entries
Official summary
This bulletin outlines changes to the service manual regarding the replacement of 8-speed dual clutch transmissions (DCT) and associated transmission control module (TCM). Additional steps, not in the service manual, are required within GDS prior to replacing the DCT/TCM, otherwise drivability concerns and/or DTCs may occur.
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.