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U3000 on the 2014 Mazda Mazda3

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name U3000
MT-010-182019-02-19. Service bulletin. Some vehicles (with MAZDA CONNECT) may exhibit a condition where DTC U0323(PCM) / U0423(ABS) /U3000(IC) CANNOT be deleted when the TPMS warning light flashes and/or the TCS/DSC indicator lights are illuminated. This can happen if the ignition is turned OFF within 20 seconds after the ignition is turned ON in one of the following two situations. 1. The ?ROOM? fuse (Engine compartment) is NOT installed when battery level is low. 2. The CMU (Connectivity Master Unit) is NOT connected.
MT-010-182018-12-17. Service bulletin. Some vehicles (with MAZDA CONNECT) may exhibit a condition where DTC U0323(PCM) / U0423(ABS) /U3000(IC) CANNOT be deleted when the TPMS warning light flashes and/or the TCS/DSC indicator lights are illuminated. This can happen if the ignition is turned OFF within 20 seconds after the ignition is turned ON in one of the following two situations. 1. The ?ROOM? fuse (Engine compartment) is NOT installed when battery level is low. 2. The CMU (Connectivity Master Unit) is NOT connected.
09-007-15-30112017-05-25. Service bulletin. SOME VEHICLES MAY HAVE THE BLIND SPOT MONITORING (BSM) OFF INDICATOR LIGHT FLASHING AND DTC U3000:54 STORED IN MEMORY. THE CONCERN IS CAUSED BY INADEQUATE BSM CONTROL MODULE CONTROL LOGIC. THE BSM CONTROL MODULE SOFTWARE HAS BEEN UPDATED TO ELIMINATE THIS CONCERN.
08-001-15-30172017-05-18. Service bulletin. SOME VEHICLES MAY EXHIBIT INSTRUMENT CLUSTER TPMS, ABS AND TCS/DSC INDICATOR WARNING LIGHTS ON AND DTC U3000:49[STANDARD DEPLOYMENT CONTROL SYSTEM] OR C0061:29, C0062:29, C0063:29 [STANDARD DEPLOYMENT CONTROL SYSTEM] STORED IN MEMORY. THE AIRBAG, SCBS, AT, MRCC, LDWS AND HBC INSTRUMENT CLUSTER INDICATOR LIGHTS MAY ALSO COME ON. INTERNAL FAILURE OF THE SAS CONTROL MODULE MAY BE THE CAUSE.
09-037-14-2951A2017-05-11. Service bulletin. SOME VEHICLES MAY HAVE THE BLIND SPOT MONITORING (BSM) OFF INDICATOR LIGHT FLASHING AND DTC U3000:54 STORED IN MEMORY.THE CONCERN IS CAUSED BY INADEQUATE BSM CONTROL MODULE CONTROL LOGIC. THE BSM CONTROL MODULE SOFTWARE HAS BEEN UPDATED TO ELIMINATE THIS CONCERN.
09-037-14-29512017-05-08. Service bulletin. SOME VEHICLES MAY HAVE THE BLIND SPOT MONITORING (BSM) OFF INDICATOR LIGHT FLASHING AND DTC U3000:54 STORED IN MEMORY.THE CONCERN IS CAUSED BY INADEQUATE BSM CONTROL MODULE CONTROL LOGIC. THE BSM CONTROL MODULE SOFTWARE HAS BEEN UPDATED TO ELIMINATE THIS CONCERN.

6 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.