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Service bulletin DTC U0323 U0423

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10213394
Published by NHTSA2022-06-06
Manufacturer's numberDTC U0323 U0423
Manufacturer's date2021-03-16
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT

NHTSA's summary

Multimodel (eaupped with Mazda connect) DTC u0323/u0423/u3000 cannot be deleted (Photo)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories

Vehicles listed
MAZDA MAZDA

Listing a model year does not mean every vehicle of it is concerned: the document says which.