Mazda bulletin SA-074-23
What it saysA customers may experience a roof water leak. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Oct 31, 2023, received Nov 1, 2023, about the structure. It names 5 model years (2020–2024). 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.
Get the next Mazda CX-30 bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationA customers may experience a roof water leak. The symptoms may include: Water in the spare tire well, Water in the rear differential, Electrical malfunctions, Infotainment system no audio sound from radio or other audio sources due to Remote Tuner water intrusion. The source of the leak may be pinhole anywhere along the roof seams under the 2 trim strips (where the roof rails attach). Depending on the location of the leak, the headliner may or may not be visibly affected.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SA-074-23 | Service bulletin | Oct 31, 2023 | 10244585 | PDF, 1,836 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.
Email me new Mazda bulletins for the CX-30
A weekly email, sent only in a week when Mazda files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 5 model years this bulletin names have filed 227 complaints with NHTSA since 2015. 37 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.
Randomly accelerated on its own; burns oil- low oil levels twice in 6 months; randomly says cruise control is available under 25 mph when car is traveling at highway speeds; the unlock and lock functions randomly fail; lift gate randomly opens; alarm system randomly goes off; TERRIBLE fuel economy (18-21 mpg)
2021 Mazda CX-30 · Electrical System · filed with NHTSA Jun 12, 2022 · ODI 11468850
The infotainment software is bricked. It happened when the battery died after purchasing it. The dealership told me to get a battery should be ok Now the infotainment system doesn't work and lane assist about put me into a guard rail the other day. I have no access to my cars functions and it is crazy scary
2022 Mazda CX-30 · Electrical System · filed with NHTSA Mar 14, 2026 · ODI 11724338
The contact owns a 2020 Mazda CX-30. The contact stated that after starting the vehicle, the instrument panel made an abnormal sound. The contact then noticed that the odometer had inadvertently rolled back to 9,999 miles. The vehicle was not diagnosed or repaired by an independent mechanic or dealer.
2020 Mazda CX-30 · Electrical System · filed with NHTSA Dec 19, 2024 · ODI 11631587
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 group26 other manufacturer communications filed against the Mazda CX-30 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… |
| 09-013-26 | Service bulletin | Mar 31, 2026 | DESCRIPTION Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the r… |
| 09-006-26 | Service bulletin | Jan 27, 2026 | Some customers may report hearing an unusual noise coming from the power liftgate (PLG) when it is unlatching to open or latching closed. Th… |
| 09-002-26 | Service bulletin | Jan 9, 2026 | On some vehicles, the front door glass run channel may interfere with the rear door garnish. Since the front door glass run channel is not f… |
| 09-045-25 | Service bulletin | Dec 4, 2025 | Some customers may experience that the fuel lid and charge lid do not lock or unlock during door lock/unlock operation. This is caused by: I… |
| 09-042-25 | Service bulletin | Nov 20, 2025 | Some customers may experience that after the doors are locked and the Fuel Door Lock Delay with MAZDA CONNECT has passed… |
| SA-011-25a | Service bulletin | Oct 17, 2025 | Some customers will report that their fuel door (AKA, fuel filler door, fuel lid, and fuel-filler lid) was stuck closed and would not open t… |
| 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… |
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-074-23 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 SA-074-23 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 SA-074-23 cover?
The manufacturer filed it against 5 model years: 2024 Mazda CX-30, 2023 Mazda CX-30, 2022 Mazda CX-30, 2021 Mazda CX-30, 2020 Mazda CX-30. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.