Hyundai warranty extension LA31
What it saysCertain 2026MY Sonata (DN8) and 2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit a fuel filler door that is difficult to open due to the push-type opener mechanism. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a warranty extension dated Jul 21, 2026, about the structure — 2 documents under this number: 26-01-057H DCS, 26-01-057H TSB. It names 1 model year (2026). 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 communicationWhat 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 2026MY Sonata (DN8) and 2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit a fuel filler door that is difficult to open due to the push-type opener mechanism. Technical Bulletin (TSB) 26-01-057H provides instructions to inspect the fuel filler door push opener and, if necessary, replace the component to restore proper operation.
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 |
|---|---|---|---|---|
| 26-01-057H DCS | Warranty extension | Jul 21, 2026 | 11035241 | PDF, 59 KB |
| 26-01-057H TSB | Warranty extension | Jul 17, 2026 | 11035144 | PDF, 1,125 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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 6 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.
More bulletins about the structure
Source: same model, same component group1 other manufacturer communication filed against the Hyundai Sonata under the same component group (structure), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 23-BD-007H | Service bulletin | Apr 24, 2023 | Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and co… |

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 LA31 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 LA31 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 LA31 cover?
The manufacturer filed it against 1 model year: 2026 Hyundai Sonata. 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 3 Mar 2026 – 3 Apr 2026; built 9 Feb 2026 – 3 Apr 2026 — the build date is on the certification label in the driver’s door jamb.