TSB 26-EV-004H — Hyundai Warranty extension
26-EV-004H is a warranty extension on file with NHTSA for the Hyundai Ioniq 5, 2022–2024 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. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. 26-EV-004H is filed as a warranty extension, 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 26-EV-004H names
| Vehicle | Model years |
|---|---|
| Hyundai Ioniq 5 | 2022, 2023, 2024 |
Every document filed under 26-EV-004H
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 |
|---|---|---|
| 26-EV-004H DCS | May 14, 2026 | Warranty extension |
| 26-EV-004H DN | May 13, 2026 | Warranty extension |
| 26-EV-004H TSB | May 12, 2026 | Warranty extension |
What 26-EV-004H covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 26-EV-004H?
26-EV-004H is a warranty extension filed with NHTSA by Hyundai, covering the Hyundai Ioniq 5 across the 2022–2024 model years. NHTSA's summary reads: Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the…
Which vehicles does 26-EV-004H cover?
NHTSA's file names Hyundai Ioniq 5 (2022–2024). 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 26-EV-004H a recall, and is the repair free?
26-EV-004H is filed as a warranty extension, 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 26-EV-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 26-EV-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 26-EV-004H. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.