16-004-26a

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: