Hyundai Tucson 2022–2024 — technical service bulletin
Bulletin 23-FL-007H · NHTSA communication 10247606 · issued Dec 15, 2023
Technical service bulletin
communication type
Power Train
component
2022–2024
model years
3
vehicle entries
Official summary
This bulletin provides the procedure to update the Transmission Control Module (TCM) for the 2022MY Tucson (NX4/NX4a) vehicles and the Engine Control Module (ECM) for the 2022-24MY Tucson vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart after ISG system has engaged and require a manual restart due to the lack of intake manifold pressure recovery.
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.