B395A on GMC vehicles
B395A is named on 18 GMC model years (2019–2023): 38 manufacturer filings and 1 owner report in NHTSA’s files, across Terrain, Acadia, Sierra 2500HD, Sierra 3500HD.
Which GMC model years name B395A
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 GMC Terrain | Back Over Prevention | 4 | — |
| 2021 GMC Acadia | Back Over Prevention | 2 | 1 |
| 2023 GMC Acadia | Back Over Prevention | 2 | — |
| 2023 GMC Sierra 2500HD | Equipment | 2 | — |
| 2023 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2023 GMC Terrain | Electrical System | 2 | — |
| 2022 GMC Acadia | Electrical System | 2 | — |
| 2022 GMC Sierra 2500HD | Equipment | 2 | — |
| 2022 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2021 GMC Sierra 2500HD | Equipment | 2 | — |
| 2021 GMC Sierra 3500HD | Back Over Prevention | 2 | — |
| 2021 GMC Terrain | Equipment | 2 | — |
| 2020 GMC Acadia | Back Over Prevention | 2 | — |
| 2020 GMC Sierra 2500HD | Equipment | 2 | — |
| 2020 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2020 GMC Terrain | Electrical System | 2 | — |
| 2019 GMC Acadia | Equipment | 2 | — |
| 2019 GMC Terrain | Electrical System | 2 | — |
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.
GMC filings that name B395A
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names B395A. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 23-NA-062 Service bulletin2023-03-31 · Back Over Prevention
- This service bulletin provides repair information to correct a customer concern of Rear View Camera Coaxial Related Issues - DTCs B395A, B395B, B395C, B101E, B101D.
- 23-NA-062 Service bulletin2023-06-01 · Electrical System
- This service bulletin provides repair information to correct a customer concern of Rear View Camera Issues - DTCs B395A, B395B, B395C, B101E, B101D.
What B395A means
Source: SAE J2012 / OBD-IIB395A is a manufacturer-specific code: the second character is a 3, 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 GMC 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 B395A a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 38 manufacturer filings and 1 owner report naming B395A on 18 GMC 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 GMC models does B395A appear on most?
2022 Terrain (4 documents), 2021 Acadia (3 documents), 2023 Acadia (2 documents).
Does B395A on a GMC 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.