Mazda bulletin 09-031-23a
What it saysSome vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position, or it may reverse and open just before fully closing. with the following DTCs… NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Nov 8, 2023, received Dec 5, 2023, about the latches/locks/linkages. It names 1 model year (2024). 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.
Some vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position, or it may reverse and open just before fully closing. with the following DTCs possibly stored in memory. B1451:02 BCM - Motor return switch circuit malfunction B1456:62 BCM - Latch condition malfunction U2646:16 BCM - Power liftgate (PLG) control module low power supply voltage input This may be caused by improper control software of the power liftgate control module. To eliminate this concern, the control software of the power liftgate control module has been modified.
Trouble codes it names: B1451 B1456 U2646 P2610 1 of 4 read from the document itself
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 09-031-23a | Service bulletin | Nov 8, 2023 | 10246140 | PDF, 224 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 5555-62-6H0 | — | — |
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.
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 465 complaints with NHTSA since 2015. 74 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Hybrid system electrical leakage. Literally makes the car unusable. Dozens of examples on both Reddit and Facebook
2024 Mazda CX-90 · Electrical System · filed with NHTSA Feb 18, 2024 · ODI 11572606
In depth: 2024 Mazda CX-90 electrical problems →
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 latches/locks/linkages
Source: same model, same component group8 other manufacturer communications filed against the Mazda CX-90 under the same component group (latches/locks/linkages), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SA-017-24a | Service bulletin | Apr 11, 2024 | Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during… |
| 09-012-24 | Service bulletin | Feb 13, 2024 | Some customers may complain about clicking noise coming from the liftgate latch-and-lock actuator (lock actuator) when driving on bumpy road… |
| SA-085-23 | Service bulletin | Dec 22, 2023 | Some customers may experience an issue where the hood cannot be opened using the release cable. To open the hood for diagnosis and repairs… |
| 09-036-23 | Service bulletin | Oct 13, 2023 | Some vehicles may exhibit a malfunction that the rear door cannot be opened or is hard to open with the rear outer handle. This is caused by… |
| 09-035-23 | Service bulletin | Oct 9, 2023 | Some customers may complain about clicking noise coming from the liftgate latch-and-lock actuator (lock actuator) when driving on bumpy road… |
| 09-031-23 | Service bulletin | Sep 15, 2023 | Some vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position. This… |
| SA-009-23F | Service bulletin | Jul 5, 2023 | Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during… |
| SA-009-23e | Service bulletin | Jun 12, 2023 | Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during… |
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 09-031-23a 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 09-031-23a 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. Every Mazda warranty extension on file lists the ones Mazda has filed.
Which vehicles does 09-031-23a cover?
The manufacturer filed it against 1 model year: 2024 Mazda CX-90. 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 before 9 Sep 2023 — the build date is on the certification label in the driver’s door jamb.