Mazda bulletin 16-001-26a
What it saysUPDATED SOFTWARE RELEASE FOR CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM This bulletin supersedes the previously issued bulletin(s) listed below. NHTSA’s full summary ↓
Mazda filed this with NHTSA as a service bulletin dated Jun 30, 2026, received Jul 2, 2026, about the electrical system. It names 4 model years (2023–2026). 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.
Get the next Mazda CX-50 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 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.
UPDATED SOFTWARE RELEASE FOR CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 16-001/26 01/08/26 DESCRIPTION The release notes outlined below provide an overview of bug fixes, feature improvements, and updates included in the latest software release. The latest version of software contains all the updates of the previous versions. NOTE: If current version is not 7230C1A-NA01_***** or 7230C2A-NA01_*****, this TSB is not applicable. Version 7230C1A-NA01_10022 enables termination of connected services at customer request: Termination of Connected Services by customers at their initiative has been enabled. Accordingly, the following items have been updated. Add a "Data Communication Information" item under Settings > System Settings>Online Connectivity. ○ Updated the text displayed on the confirmation screen for disabling Connected Services. ○ • The list on the center display may appear distorted, giving a double image. • The system may reboot when the ignition is turned on. However, the camera images on the center display are not affected, and the back camera is usable. • The voice recognition function does not start. • Apple CarPlay® may fail to connect while driving on the highway. REPAIR PROCEDURE 1. Verify the customer concern. 2. Update MAZDA CONNECT with software version 7230C1A-NA01_10022/7230C2A-NA01_10014 or later with a USB memory stick using the 7TH GEN MAZDA CONNECT Update Instructions.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 16-001-26a | Service bulletin | Jun 30, 2026 | 11034279 | PDF, 197 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-50
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 4 model years this bulletin names have filed 161 complaints with NHTSA since 2015. 17 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.
The vehicle had the original OEM battery fail at 15 months. It dropped to 7v under light load. It's a bad battery. Upon being jump started, the power steering went in and out while driving and the dashboard blinked on and off...throwing a lot of errors that are unrelated to the battery problem.
2024 Mazda CX-50 · Electrical System · filed with NHTSA Sep 2, 2025 · ODI 11684560
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 group86 other manufacturer communications filed against the Mazda CX-50 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 |
|---|---|---|---|
| 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… |
| SSPE1 | Emissions | Aug 20, 2026 | Special Service Program (SSPE1) - 2026 CX-50 Hybrid – Battery Label Concern Mazda Motor Corporation has decided to conduct a Special Service… |
| 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… |
| 8026C | Emissions | Aug 19, 2026 | 2026 CX-50 Hybrid Battery Label Concern - Emissions Recall 8026C Mazda Motor Corporation has decided to conduct a Voluntary Emissions Recal… |
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 16-001-26a 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 16-001-26a 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 16-001-26a cover?
The manufacturer filed it against 4 model years: 2026 Mazda CX-50, 2025 Mazda CX-50, 2024 Mazda CX-50, 2023 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 9 May 2025 — the build date is on the certification label in the driver’s door jamb.