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Service bulletins for the 2026 Mazda CX-5

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

75 on file from NHTSA, as of 2026-10-19.

About B1477 on the 2026 Mazda CX-5: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: B1477 are shown. Show all

Bulletins, newest first
16-004-26a2026-06-02. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 16-004/26 05/06/2026 DESCRIPTION Some vehicles may experience the symptoms mentioned below, which can be improved with the latest CDC and DCM software updates. The SOS button illuminates red and emits a beep sound immediately after IG ON (DTC U2701:89 is stored) The pictograph antenna icon on the upper part of the center display shows a globe with a slash mark Mazda Connect takes approximately 10 seconds to boot up after engine start, causing a noticeable delay on the display The display remains black on startup, but the reverse camera displays normally when Reverse gear is engaged DCM internal battery malfunction (DTCs B1477:00 and B1477:16 are stored) Remote operation may fail A beep sound may be emitted from the DCM Other Improvements Minor improvements for enhanced operational stability and product quality Improvements for communication stability REPAIR PROCEDURE Update the DCM and CDC to the latest software versions by following the DCM and CDC USB Software Update Procedure and using the latest software availble from the links below:
16-004-262026-06-02. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. DESCRIPTION Some vehicles may experience the symptoms mentioned below, which can be improved with the latest CDC and DCM software updates. The SOS button illuminates red and emits a beep sound immediately after IG ON (DTC U2701:89 is stored) The pictograph antenna icon on the upper part of the center display shows a globe with a slash mark Mazda Connect takes approximately 10 seconds to boot up after engine start, causing a noticeable delay on the display The display remains black on startup, but the reverse camera displays normally when Reverse gear is engaged DCM internal battery malfunction (DTCs B1477:00 and B1477:16 are stored) Remote operation may fail A beep sound may be emitted from the DCM Other Improvements Minor improvements for enhanced operational stability and product quality Improvements for communication stability REPAIR PROCEDURE Update the DCM and CDC to the latest software versions by following the DCM and CDC USB Software Update Procedure and using the latest software availble from the links below:

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.