U2145
0 owner reports and 43 manufacturer filings across 12 model years from Mazda.
Where U2145 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2023 Mazda CX-30 | Electrical System | 4 | — |
| 2022 Mazda CX-30 | Electrical System | 4 | — |
| 2021 Mazda CX-30 | Electrical System | 4 | — |
| 2020 Mazda CX-30 | Electrical System | 4 | — |
| 2023 Mazda Mazda3 | Electrical System | 4 | — |
| 2022 Mazda Mazda3 | Electrical System | 4 | — |
| 2021 Mazda Mazda3 | Electrical System | 4 | — |
| 2020 Mazda Mazda3 | Electrical System | 4 | — |
| 2019 Mazda Mazda3 | Electrical System | 4 | — |
| 2024 Mazda CX-30 | Electrical System | 3 | — |
| 2024 Mazda Mazda3 | Electrical System | 3 | — |
| 2023 Mazda CX-50 | Electrical System | 1 | — |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
What it gets filed under
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names U2145. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- SA-008-252025-02-05 · Electrical System
- Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. U0186:08 Communication error with audio amplifier • U2145:08 Communication error with remote tuner (RT) • U2145:02 Communi
- SA-021-24a Other2024-05-07 · Unknown Or Other
- Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. U0186:08 Communication error with audio amplifier U2145:08 Communication error with remote tuner (RT) U2145:02 Communicati
- SA-021-242024-04-09 · Electrical System
- Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. U0186:08 Communication error with audio amplifier U2145:08 Communication error with remote tuner (RT) U2145:02 Communic
- SA-070-222022-11-01 · Electrical System
- Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. * U0186:08 Communication error with audio amplifier * U2145:08 Communication error with remote tuner (RT) * U2145:02 Co
- SA-058-222022-08-19 · Electrical System
- Some customers may expierience infotainment static or no audio sound and the following DTC's may be stored: - U2145:08 - Communication error with remote tuner (RT) - U0186:08 - Communication error with audio amplifier This may be caused by poor electrical connection at connector 0920-114 and/or 0920-115D (Rear Harness Side).
What U2145 means
Source: SAE J2012 / OBD-IIU2145 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about U2145
Source: NHTSA files and the OBD-II standardCan I keep driving with U2145 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.