Mazda bulletin 01-012-23
What it saysSome vehicles may exhibit a high-frequency noise from the fuel pump. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Dec 19, 2023, received Jan 5, 2024, about the fuel/propulsion system. 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 communicationSome vehicles may exhibit a high-frequency noise from the fuel pump. When the fuel temperature is high, vaporization may occur in the return fuel from the pressure regulator valve assembled on the fuel pump unit. In that situation, the spring in the pressure regulator causes self-excited vibration, resulting in the high-frequency noise. To eliminate this concern, the shape of the pressure regulator valve in the fuel pump has been modified to control self-excited vibration by reducing pressure differences in the valve path.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 01-012-23 | Service bulletin | Dec 19, 2023 | 10248341 | not found |
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.
Started the vehicle and got the message "Hybrid system Malfunction. Have the vehicle inspected". Vehicle was shaking and would not go above 30 MPH
2024 Mazda CX-90 · Fuel/Propulsion System · filed with NHTSA Dec 13, 2023 · ODI 11560013
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 fuel/propulsion system
Source: same model, same component group6 other manufacturer communications filed against the Mazda CX-90 under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SA-035-26 | Service bulletin | May 20, 2026 | DESCRIPTION When refueling, you may occasionally notice: A gurgling sound from the fuel filler neck. The gas dispenser nozzle clicks off bef… |
| SA-032-26 | Service bulletin | May 2, 2026 | This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-011/25 10/16/25 and 02/27/25 DESCRIPTION Some… |
| SA-013-25a | Service bulletin | Sep 13, 2025 | Regarding previous Service Alert "Fuel Gauge Inaccurate / Distance To Empty (DTE) Erratic / Engine No Start" issue. This SA has been replace… |
| SA-013-25 | Service bulletin | Feb 28, 2025 | Some customers may experience an inacurrate fuel gauge: Rapid fuel level drop when fuel guage is below 1/4. • Distance to empty reading… |
| SA-042-24 | Service bulletin | Jul 26, 2024 | Some customers will report that their fuel filler lid (door) was stuck closed and would not open to refuel the vehicle. The fuel door may or… |
| 09-013-24 | Service bulletin | Feb 22, 2024 | Some customers may complain that the fuel level gauge needs a long time to show the correct level after refueling. This may be caused by imp… |
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 01-012-23 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 01-012-23 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 01-012-23 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.