TSB 25-01-061H — Hyundai Service campaign
25-01-061H is a service campaign on file with NHTSA for the Hyundai Tucson, 2025–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 25-01-061H 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 25-01-061H names
| Vehicle | Model years |
|---|---|
| Hyundai Tucson | 2025, 2026 |
Every document filed under 25-01-061H
| Document ID | Filed | Type |
|---|---|---|
| 25-01-061H TSB | September 12, 2025 | Service campaign |
What 25-01-061H covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 25-01-061H?
25-01-061H is a service campaign filed with NHTSA by Hyundai, covering the Hyundai Tucson across the 2025–2026 model years. NHTSA's summary reads: Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a…
Which vehicles does 25-01-061H cover?
NHTSA's file names Hyundai Tucson (2025–2026). 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 25-01-061H a recall, and is the repair free?
25-01-061H 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 25-01-061H?
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 25-01-061H, 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 25-01-061H. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.