Hyundai warranty extension Z14
Hyundai filed this with NHTSA as a warranty extension dated Jun 25, 2026, received Jun 6, 2026, about the electrical system — 4 documents under this number: Z14 OL, 26-EV-004H DCS, 26-EV-004H DN, 26-EV-004H TSB. It names 7 model years (2022–2025). A warranty extension is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationHyundai 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 flowchart in Technical Service Bulletin (TSB) 26-BE-010H to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement. Please note that any vehicles under 15 years/180,000 miles are covered by this TSB, even if vehicle is within High Voltage Warranty of 10 years/120,000 miles.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Z14 OL | Warranty extension | Jun 25, 2026 | 11034111 | PDF, 160 KB |
| 26-EV-004H DCS | Warranty extension | May 14, 2026 | 11033695 | not yet checked |
| 26-EV-004H DN | Warranty extension | May 13, 2026 | 11033694 | not yet checked |
| 26-EV-004H TSB | Warranty extension | May 12, 2026 | 11033693 | not yet checked |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai Z14 a recall?
No. A warranty extension is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the Z14 repair free?
A warranty extension is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does Z14 cover?
The manufacturer filed it against 7 model years: 2025 Hyundai Ioniq 5, 2024 Hyundai Ioniq 5, 2023 Hyundai Ioniq 5, 2022 Hyundai Ioniq 5, 2025 Hyundai Ioniq 6, 2024 Hyundai Ioniq 6 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.