Mazda bulletin 30-001-26b
What it saysHYBRID SYSTEM FAILURE DISPLAYED ON METER WITH DTC P2530:12 This bulletin supersedes the previously issued bulletin(s) listed below. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Apr 10, 2026, received May 3, 2026, about the power train. It names 1 model year (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.
HYBRID SYSTEM FAILURE DISPLAYED ON METER WITH DTC P2530:12 This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 30-001/26 02/19/26 and 03/24/26 This technical service bulletin has been superseded to SSPE0. Concern Outline: When starting the vehicle, a Master Warning Light may turn on and a hybrid system failure message (Hybrid System Malfunction Have the Vehicle Inspected) may be displayed in the instrument cluster. The hybrid system may not activate, and the engine may not start, along with the DTC P2530:12 [Hybrid Control] and other numerous DTCs. Repair Outline: Reprogram the PT_GWU with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic And Repair Software (MDARS) by following TSB 30-001/26 repair instructions.
Trouble codes it names: P2530
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 30-001-26b | Service bulletin | Apr 10, 2026 | 11032007 | PDF, 108 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 47 complaints with NHTSA since 2015. 11 of them name Power Train — 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.
I am reporting a potential safety-related defect in my 2025 Mazda CX-50 Preferred, which is approximately four months old. On one occasion, the vehicle moved backward while in Drive mode. This occurred twice on the same day under similar conditions on a slight incline.
2025 Mazda CX-50 · Power Train · filed with NHTSA Mar 29, 2026
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 power train
Source: same model, same component group8 other manufacturer communications filed against the Mazda CX-50 under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 01-003-26a | Service bulletin | May 1, 2026 | This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 01-003/26 01/30/26 Some vehicl… |
| SA-029-26 | Service bulletin | Apr 21, 2026 | This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DE… |
| SA-056-25 | Service bulletin | Nov 27, 2025 | When inspected, the differential or PTO oil is dark or black. This is considered normal and NO repair should be performed. During production… |
| PF-24-11 | Other | Oct 29, 2024 | Beginning with the 2025 model year and onwards, the CX-50 Turbo Models equipped with the Tow Package feature a modified harness connector… |
| SA-077-24 | Service bulletin | Oct 24, 2024 | CX-50 Hybrid service cautions. The CX-50 Hybrid has new and revised features that are different from previous models, and may be difficult t… |
| SA-052-24 | Service bulletin | Aug 7, 2024 | Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle is parked. For this concern, inspe… |
| PF-24-03 | Service bulletin | Mar 6, 2024 | Due to limitations, certain vehicles from 2016 to current models might display an inaccurate transmission part number in the Global Electron… |
| 05-001-23 | Service bulletin | May 3, 2023 | Some customers may experience a shock during driving at low speeds when starting from a stop with the accelerator pedal depressed slightly.… |
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 30-001-26b 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 30-001-26b 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 30-001-26b cover?
The manufacturer filed it against 1 model year: 2025 Mazda CX-50. 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 22 Apr 2025 — the build date is on the certification label in the driver’s door jamb.