Mazda bulletin 02-001-23a
What it saysSome customers may complain that oil leaks from the rear shock absorber. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Oct 17, 2023, received Nov 1, 2023, about the suspension. It names 1 model year (2022). 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 customers may complain that oil leaks from the rear shock absorber. Due to the structure, a small amount of oil is leaked out, but there is no functional concern. However, this oil leak level is almost the same where shock absorber replacement is required. To eliminate this concern, the structure of the oil seal in the rear shock absorber has been modified
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 02-001-23a | Service bulletin | Oct 17, 2023 | 10244579 | PDF, 148 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| DN4J-28-700A | DAMPER,REAR 1 or | 2 | eBay Motors → |
Read by machine from the document NHTSA serves (2 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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More bulletins about the suspension
Source: same model, same component group2 other manufacturer communications filed against the Mazda MX-30 under the same component group (suspension), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SA-051-25 | Service bulletin | Nov 8, 2025 | Noise, Vibration, and Harshness (NVH) Diagnostic Guidelines Diagnostic Guidelines When diagnosing NVH concerns, it is essential to first cla… |
| SA-013-24 | Service bulletin | Feb 16, 2024 | Some vehicles may exhibit a steering shimmy or body vibration during the PDI test drive or during the first few miles of driving after the v… |
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 02-001-23a 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 02-001-23a 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 02-001-23a cover?
The manufacturer filed it against 1 model year: 2022 Mazda MX-30. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.