Hyundai warranty extension Z03
What it saysCertain Elantra (CN7) non-N-Line and N-Line, Elantra (CN7A), Elantra N (CN7 N), and Elantra Hybrid (CN7 HEV) vehicles may experience an inoperable horn. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a warranty extension dated Jun 16, 2025, received Mar 25, 2025 — 7 documents under this number: 25-BE-005H-2 OL, 25-BE-005H-2 TSB, 25-BE-005H-2 DN, 25-BE-005H-1 DN and 3 more. It names 5 model years (2021–2025). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
What it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
Certain Elantra (CN7) non-N-Line and N-Line, Elantra (CN7A), Elantra N (CN7 N), and Elantra Hybrid (CN7 HEV) vehicles may experience an inoperable horn. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years/60,000 miles.
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25-BE-005H-2 OL | Warranty extension | Jun 16, 2025 | 11019672 | PDF, 201 KB |
| 25-BE-005H-2 TSB | Warranty extension | May 17, 2025 | 11018878 | PDF, 288 KB |
| 25-BE-005H-2 DN | Warranty extension | May 17, 2025 | 11018877 | PDF, 1,020 KB |
| 25-BE-005H-1 DN | Warranty extension | May 8, 2025 | 11018577 | not found |
| 25-BE-005H-1 TSB | Warranty extension | May 8, 2025 | 11018576 | not found |
| 25-BE-005H DN | Warranty extension | Mar 19, 2025 | 11015890 | PDF, 256 KB |
| 25-BE-005H TSB | Warranty extension | Mar 19, 2025 | 11015889 | PDF, 295 KB |
What the document itself lists
The manufacturer titles it “HORN ASSEMBLY REPLACEMENT”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 96611-AA000 | — | — |
| 96621-AA000 | — | — |
| 96611-AA900QQH | — | — |
| 96621-AA900QQH | Includes extension | — |
| 96611-AA500 | — | — |
| 96621-AA500 | — | — |
| 96611-AA700QQH | — | — |
| 96621-AA700QQH | NO extension wiring | — |
| 96611-AA600 | — | — |
| 96621-AA600 | — | — |
| 96611-AA800QQH | — | — |
| 96621-AA800QQH | NO extension wiring | — |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Hyundai’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 5 model years this bulletin names have filed 589 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.

Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Hyundai, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai Z03 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 Z03 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 Z03 cover?
The manufacturer filed it against 5 model years: 2025 Hyundai Elantra, 2024 Hyundai Elantra, 2023 Hyundai Elantra, 2022 Hyundai Elantra, 2021 Hyundai Elantra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built 12 Sep 2020 – 30 Aug 2024; 2021–2023MY Elantra (CN7A): built 25 Sep 2020 – 2 Jun 2023; 2021–2025MY Elantra Hybrid (CN7 HEV): built 15 Dec 2020 – 11 Oct 2024 — the build date is on the certification label in the driver’s door jamb.