Kia warranty extension WTY048
Kia filed this with NHTSA as a warranty extension dated Aug 25, 2026, received Sep 2, 2026, about the electrical system — 5 documents under this number: WTY048_OWNR, WTY048_DP, WTY048_TSB, WTY048_QA and more. It names 3 model years (2022–2024). 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 communicationTECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION/REPLACEMENT (WTY048) - This bulletin provides information associated with the Warranty Extension Program (WTY048) to inspect and, if necessary, replace both the high-pitch and low-pitch horn assemblies on certain 2022-2024MY Carnival (KA4) vehicles produced from January 4, 2021 through July 4, 2024. The affected vehicles may experience a distorted or inoperative horn sound caused by excessive moisture and dust exposure over time. The warranty coverage for repairs related to the horn assembly has been extended from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| WTY048_OWNR | Warranty extension | Aug 25, 2026 | 11036711 | PDF, 111 KB |
| WTY048_DP | Warranty extension | Aug 21, 2026 | 11036631 | PDF, 65 KB |
| WTY048_TSB | Service bulletin | Aug 20, 2026 | 11036722 | PDF, 304 KB |
| WTY048_QA | Warranty extension | Aug 20, 2026 | 11036721 | PDF, 78 KB |
| WTY048_DPSM | Warranty extension | Aug 20, 2026 | 11036701 | PDF, 67 KB |
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 Kia WTY048 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 WTY048 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 WTY048 cover?
The manufacturer filed it against 3 model years: 2024 Kia Carnival, 2023 Kia Carnival, 2022 Kia Carnival. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.