TSB 25-01-087H — Hyundai Service campaign
25-01-087H is a service campaign on file with NHTSA for 3 Hyundai models, 2019–2021 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain Santa Fe (TMA), Sonata (LFA) and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. Technical Service Bulletin (TSB) 25-01-087H provides instructions for updating the Engine Control Module (ECM) to address this condition.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 25-01-087H is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years 25-01-087H names
| Vehicle | Model years |
|---|---|
| Hyundai Santa Fe | 2019, 2020 |
| Hyundai Sonata | 2019 |
| Hyundai Tucson | 2019, 2020, 2021 |
Every document filed under 25-01-087H
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| 25-01-087H DCS | November 26, 2025 | Service campaign |
| 25-01-087H DN | November 26, 2025 | Service campaign |
| 25-01-087H DCS | November 26, 2025 | Service campaign |
What 25-01-087H covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 25-01-087H?
25-01-087H is a service campaign filed with NHTSA by Hyundai, covering 3 Hyundai models across the 2019–2021 model years. NHTSA's summary reads: Certain Santa Fe (TMA), Sonata (LFA) and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. Technical Service Bulletin (TSB) 25-01-087H provides instructions for updating the Engine Control Module (ECM) to address this condition.
Which vehicles does 25-01-087H cover?
NHTSA's file names Hyundai Santa Fe (2019–2020); Hyundai Sonata (2019); Hyundai Tucson (2019–2021). 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 25-01-087H a recall, and is the repair free?
25-01-087H is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of 25-01-087H?
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 25-01-087H, 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 25-01-087H. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.