B2255 on Subaru vehicles
B2255 is named on 24 Subaru model years (2019–2024): 76 manufacturer filings and 0 owner reports in NHTSA’s files, across Ascent, Crosstrek, Forester, Impreza.
Which Subaru model years name B2255
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 Subaru Ascent | Electrical System | 4 | — |
| 2022 Subaru Crosstrek | Electrical System | 4 | — |
| 2022 Subaru Forester | Equipment | 4 | — |
| 2022 Subaru Impreza | Electrical System | 4 | — |
| 2021 Subaru Ascent | Equipment | 4 | — |
| 2021 Subaru Crosstrek | Electrical System | 4 | — |
| 2021 Subaru Forester | Equipment | 4 | — |
| 2021 Subaru Impreza | Electrical System | 4 | — |
| 2020 Subaru Ascent | Electrical System | 4 | — |
| 2020 Subaru Crosstrek | Electrical System | 4 | — |
| 2020 Subaru Forester | Equipment | 4 | — |
| 2020 Subaru Impreza | Electrical System | 4 | — |
| 2019 Subaru Ascent | Electrical System | 4 | — |
| 2019 Subaru Crosstrek | Electrical System | 4 | — |
| 2019 Subaru Forester | Equipment | 4 | — |
| 2019 Subaru Impreza | Electrical System | 4 | — |
| 2024 Subaru Forester | Equipment | 2 | — |
| 2023 Subaru Crosstrek | Equipment | 2 | — |
| 2023 Subaru Forester | Electrical System | 2 | — |
| 2023 Subaru Impreza | Equipment | 2 | — |
| 2024 Subaru Ascent | Equipment | 1 | — |
| 2024 Subaru Crosstrek | Electrical System | 1 | — |
| 2024 Subaru Impreza | Electrical System | 1 | — |
| 2023 Subaru Ascent | Electrical System | 1 | — |
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.
Subaru filings that name B2255
Source: NHTSA manufacturer communicationsBulletins and campaigns Subaru filed with NHTSA whose summary names B2255. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 18-225-22 Service bulletin2022-06-27 · Electrical System
- This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.
- 18-225-22R Service bulletin2022-09-06 · Equipment
- This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.
- 18-225-22R Service bulletin2023-10-12 · Electrical System
- This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.
- 18-225-22R Service bulletin2024-03-05 · Equipment
- This bulletin provides the diagnostic procedure for Harman Infotainment Systems when DTC B2255 is detected. This update should prevent unnecessary replacement of the head unit or USB cable.
What B2255 means
Source: SAE J2012 / OBD-IIB2255 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. The record above is what Subaru 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 B2255 a known problem on Subaru vehicles?
It is a documented one: NHTSA's files hold 76 manufacturer filings and 0 owner reports naming B2255 on 24 Subaru model years (2019–2024). 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 Subaru models does B2255 appear on most?
2022 Ascent (4 documents), 2021 Ascent (4 documents), 2020 Ascent (4 documents).
Does B2255 on a Subaru 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.