Mazda bulletin 16-004-25
What it saysSome vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7230C1A-NA05_10026 or 7230C2A-NA05_10026). NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Oct 18, 2025, received Nov 4, 2025, about the electrical system. It names 2 model years (2025–2026). 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 experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7230C1A-NA05_10026 or 7230C2A-NA05_10026). NOTE: If current version is not 7230C1A-NA05_***** or 7230C2A-NA05_*****, this TSB is not applicable. (Ver. 7230C1A-NA05_10026 or 7230C2A-NA05_10026) fixes these software errors (bugs): The list on the center display may appear distorted, giving a double image. The system may reboot when the ignition is turned on. The voice recognition function does not start. The unit used for height input is incorrect in the driver personalization system. CarPlay may fail to connect while driving on the highway. (Ver. 7230C1A-NA05_10022, 7230C2A-NA05_10022) fixes these software errors (bugs): The banner display for battery level notifications of Bluetooth®-connected devices has been modified. Alexa may be signed out when the driver is uninstalled after Alexa has been set up, The Wi-Fi client connection screen may not disappear even after several seconds. The system may freeze on the disclaimer screen when the engine is started normally after using the remote engine starter. Only Bluetooth® connection is established when attempting to connect Android Auto. The infotainment screen turns black when SiriusXM Radio is selected. The cancel operation may not function when manually connecting to a Wi-Fi client. Air conditioning settings cannot be controlled via Alexa without a CV contract.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 16-004-25 | Service bulletin | Oct 18, 2025 | 11024838 | PDF, 200 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 2 model years this bulletin names have filed 58 complaints with NHTSA since 2015.
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 electrical system
Source: same model, same component group85 other manufacturer communications filed against the Mazda CX-70 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Mazda list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 09-027-26 | Service bulletin | Sep 29, 2026 | DESCRIPTION Some CX-70 and CX-90 PHEV vehicles may fail to start (enter READY mode) in cold weather, but the vehicle can often be started su… |
| SA-012-26d | Service bulletin | Sep 18, 2026 | DESCRIPTION Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional sym… |
| SA-042-26a | Service bulletin | Sep 17, 2026 | Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The chang… |
| SA-041-26a | Service bulletin | Sep 11, 2026 | DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer b… |
| SA-038-26b | Service bulletin | Sep 10, 2026 | This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 08/18/26 and 06… |
| SA-053-26 | Service bulletin | Aug 19, 2026 | This Service Alert supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-006/23 01/23/23 DESCRI… |
| SA-039-26a | Service bulletin | Aug 19, 2026 | This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red text. SA-039/26 06/15/26 Mazda Connect… |
| SA-051-26 | Service bulletin | Aug 15, 2026 | This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-076/24 10/22/24 DESCRIPTION This Se… |
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 16-004-25 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 16-004-25 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 16-004-25 cover?
The manufacturer filed it against 2 model years: 2026 Mazda CX-70, 2025 Mazda CX-70. 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 3 Aug 2025 — the build date is on the certification label in the driver’s door jamb.