Hyundai Santa Cruz 2021–2022 — technical service bulletin
Bulletin 24-AT-001H · NHTSA communication 10251293 · issued Feb 28, 2024
Technical service bulletin
communication type
Power Train
component
2021–2022
model years
6
vehicle entries
Official summary
This bulletin provides the procedure for updating the automatic transmission TCU and ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when accelerating.
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.