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Diagnostic trouble code · Buick

B395A on Buick vehicles

B395A is named on 9 Buick model years (2019–2023): 18 manufacturer filings and 0 owner reports in NHTSA’s files, across Enclave, Encore, LaCrosse.

Body 9 model years 18 manufacturer filings

Which Buick model years name B395A

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2023 Buick EnclaveEquipment2—
2023 Buick EncoreEquipment2—
2022 Buick EnclaveElectrical System2—
2022 Buick EncoreEquipment2—
2021 Buick EnclaveEquipment2—
2021 Buick EncoreBack Over Prevention2—
2020 Buick EnclaveBack Over Prevention2—
2020 Buick EncoreBack Over Prevention2—
2019 Buick LaCrosseBack Over Prevention2—

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.

Equipment 8 Back Over Prevention 8 Electrical System 2
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Buick filings that name B395A

Source: NHTSA manufacturer communications

Bulletins and campaigns Buick 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.

What B395A means

Source: SAE J2012 / OBD-II

B395A 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 Buick and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is B395A a known problem on Buick vehicles?

It is a documented one: NHTSA's files hold 18 manufacturer filings and 0 owner reports naming B395A on 9 Buick 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 Buick models does B395A appear on most?

2023 Enclave (2 documents), 2022 Enclave (2 documents), 2021 Enclave (2 documents).

Does B395A on a Buick 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.