TSB 24-FL-004H — Hyundai Service bulletin
24-FL-004H is a service bulletin on file with NHTSA for the Hyundai Santa Fe, 2021–2023 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This bulletin provides the procedure to update the Engine Control Module (ECM) and the Transmission Control Module (TCM) for 2021-2023MY Santa Fe (TMa) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 24-FL-004H names
| Vehicle | Model years |
|---|---|
| Hyundai Santa Fe | 2021, 2022, 2023 |
Every document filed under 24-FL-004H
| Document ID | Filed | Type |
|---|---|---|
| 24-FL-004H | December 18, 2024 | Service bulletin |
What 24-FL-004H covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 24-FL-004H?
24-FL-004H is a service bulletin filed with NHTSA by Hyundai, covering the Hyundai Santa Fe across the 2021–2023 model years. NHTSA's summary reads: This bulletin provides the procedure to update the Engine Control Module (ECM) and the Transmission Control Module (TCM) for 2021-2023MY Santa Fe (TMa) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart…
Which vehicles does 24-FL-004H cover?
NHTSA's file names Hyundai Santa Fe (2021–2023). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 24-FL-004H a recall, and is the repair free?
No. 24-FL-004H is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 24-FL-004H?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 24-FL-004H, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 24-FL-004H. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.