Mazda bulletin SA-048-25
What it saysTo improved customer experience, an operational modification has been made to unlock the trunk lid after Dynamic Stability Control (DSC) replacement. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Oct 15, 2025, received Nov 5, 2025, about the structure. It names 2 model years (2024–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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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.
To improved customer experience, an operational modification has been made to unlock the trunk lid after Dynamic Stability Control (DSC) replacement. Be sure to explain the following unlock operational modification to affected customers. Trunk Lid Unlocking Operational Modification: After the engine is turned off and the vehicle remains inactive for more than 5 minutes (sleep mode), it was necessary to operate the electric trunk lid opener switch twice to unlock the trunk lid. • After replacing the Dynamic Stability Control (DSC) with a newly modified part, the trunk lid is unlocked with a single operation, as described in the owner's manual.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SA-048-25 | Service bulletin | Oct 15, 2025 | 11025002 | PDF, 222 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| N452-43-7A0C | — | — | |
| N452-43-7A0D | — | — | |
| N4Y0-43-7A0D | — | — | |
| N4Y0-43-7A0C | — | — | |
| NH6V-43-7A0A | Dynamic Stability Control (DSC) | — | eBay Motors → |
| NH6V-43-7A0 | Dynamic Stability Control (DSC) | — | eBay Motors → |
| NHY0-43-7A0A | Page 3 of | — | eBay Motors → |
| NHY0-43-7A0 | Page 3 of | — | eBay Motors → |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Mazda’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. Listings and prices on eBay Motors are the seller’s.
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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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 MX-5 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 2 model years this bulletin names have filed 8 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 group12 other manufacturer communications filed against the Mazda MX-5 under the same component group (structure), newest first. The eight newest are listed; the rest are on the Mazda list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SA-031-26 | Service bulletin | Apr 30, 2026 | DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN pla… |
| 09-007-26 | Service bulletin | Jan 31, 2026 | Some vehicles may exhibit the power window(s) not working properly (window does not move or has fallen into the door) and/or making an abnor… |
| SA-039/25 | Service bulletin | Aug 22, 2025 | Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. T… |
| 09-046-24 | Service bulletin | Oct 25, 2024 | Some vehicles may experience stains appearing on the hood, roof and/or trunk of the vehicle. This concern is most likely to be found in a co… |
| SA-058-24 | Service bulletin | Aug 15, 2024 | Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. T… |
| SA-056-24 | Service bulletin | Aug 13, 2024 | Interior parts made of resin have antistatic coating to prevent dust from sticking on the surfaces, and depending on the conditions of use… |
| 09-016-24a | Service bulletin | Jul 18, 2024 | Some vehicles may exhibit scratches (1) on the rear of the seat back bar garnish (2) from contact with the convertible top (3). Due to assem… |
| SA-037-24 | Other | Jul 5, 2024 | The following DTCs are missing from the 2024 MX-5 WSM, but you can refer to the 2023 MX-5 for these DTCs to troubleshoot a 2024 model. B00A0… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Mazda, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mazda SA-048-25 a recall?
No. A service bulletin 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 SA-048-25 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does SA-048-25 cover?
The manufacturer filed it against 2 model years: 2025 Mazda MX-5, 2024 Mazda MX-5. 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: 2024-2025 MX-5: built before 28 Feb 2025 — the build date is on the certification label in the driver’s door jamb.