B1030 on Mazda vehicles
B1030 is named on 9 Mazda model years (2019–2023): 63 manufacturer filings and 0 owner reports in NHTSA’s files, across Mazda3, CX-30.
Which Mazda model years name B1030
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2019 Mazda Mazda3 | Seats | 9 | — |
| 2022 Mazda CX-30 | Electrical System | 7 | — |
| 2022 Mazda Mazda3 | Seats | 7 | — |
| 2021 Mazda CX-30 | Seats | 7 | — |
| 2021 Mazda Mazda3 | Seats | 7 | — |
| 2020 Mazda CX-30 | Seats | 7 | — |
| 2020 Mazda Mazda3 | Seats | 7 | — |
| 2023 Mazda CX-30 | Seats | 6 | — |
| 2023 Mazda Mazda3 | Seats | 6 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Mazda filings that name B1030
Source: NHTSA manufacturer communicationsBulletins and campaigns Mazda filed with NHTSA whose summary names B1030. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- SA-059-19 Service bulletin2019-12-20 · Seats
- Some customers may complain that the seat warmer turns off after 10 minutes in manual mode and will not turn back on until the vehicle is restarted. DTC B1030:13 (Seat warmer unit (LH) circuit malfunction (heater side)) may also be stored. This may be caused by a faulty seat warmer control unit (A).
- SA-009-21 Service bulletin2021-01-28 · Seats
- Some customers may complain that the seat warmer turns off after 10 minutes in manual mode and will not turn back on until the vehicle is restarted. DTC B1030:13 (Seat warmer unit (LH) circuit malfunction (heater side)) may also be stored. This may be caused by a faulty seat warmer control unit (A).
- 09-044-22 Service bulletin2022-11-15 · Electrical System
- Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs "B1030:13" and/or "B1032:13" are stored. This is caused by the seat warmer's fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, t
- 09-012-23 Service bulletin2023-02-09 · Unknown Or Other
- Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs “B1030:13” and/or “B1032:13” are stored. This is caused by the seat warmer's fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, t
- 09-012-23a Service bulletin2023-03-22 · Seats
- Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs “B1030:13” and/or “B1032:13” are stored. This is caused by the seat warmers fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, th
- 09-012-23b Service bulletin2023-07-10 · Electrical System
- Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs B1030:13 and/or B1032:13 are stored. This is caused by the seat warmers fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, the se
What B1030 means
Source: SAE J2012 / OBD-IIB1030 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what Mazda and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs B1030 a known problem on Mazda vehicles?
It is a documented one: NHTSA's files hold 63 manufacturer filings and 0 owner reports naming B1030 on 9 Mazda model years (2019–2023). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Mazda models does B1030 appear on most?
2019 Mazda3 (9 documents), 2022 CX-30 (7 documents), 2021 CX-30 (7 documents).
Does B1030 on a Mazda mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.