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Diagnostic trouble code · Chevrolet

B395A on Chevrolet vehicles

B395A is named on 29 Chevrolet model years (2019–2023): 54 manufacturer filings and 0 owner reports in NHTSA’s files, across Blazer, Bolt EUV, Bolt EV, Equinox, Silverado 2500HD and 2 more.

Body 29 model years 54 manufacturer filings

Which Chevrolet model years name B395A

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2023 Chevrolet BlazerElectrical System2—
2023 Chevrolet Bolt EUVElectrical System2—
2023 Chevrolet Bolt EVBack Over Prevention2—
2023 Chevrolet Silverado 2500HDBack Over Prevention2—
2023 Chevrolet Silverado 3500HDElectrical System2—
2023 Chevrolet TraverseBack Over Prevention2—
2022 Chevrolet BlazerBack Over Prevention2—
2022 Chevrolet Bolt EUVEquipment2—
2022 Chevrolet Bolt EVElectrical System2—
2022 Chevrolet Silverado 2500HDElectrical System2—
2022 Chevrolet Silverado 3500HDElectrical System2—
2022 Chevrolet TraverseElectrical System2—
2021 Chevrolet BlazerBack Over Prevention2—
2021 Chevrolet Bolt EVEquipment2—
2021 Chevrolet Silverado 2500HDElectrical System2—
2021 Chevrolet Silverado 3500HDEquipment2—
2021 Chevrolet TraverseEquipment2—
2020 Chevrolet BlazerEquipment2—
2020 Chevrolet Bolt EVEquipment2—
2020 Chevrolet Silverado 2500HDElectrical System2—
2020 Chevrolet Silverado 3500HDBack Over Prevention2—
2020 Chevrolet TraverseElectrical System2—
2019 Chevrolet BlazerElectrical System2—
2019 Chevrolet Bolt EVBack Over Prevention2—
2019 Chevrolet EquinoxBack Over Prevention2—
2023 Chevrolet EquinoxEquipment1—
2022 Chevrolet EquinoxEquipment1—
2021 Chevrolet EquinoxBack Over Prevention1—
2020 Chevrolet EquinoxBack Over Prevention1—

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 19 Back Over Prevention 18 Electrical System 17
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Chevrolet filings that name B395A

Source: NHTSA manufacturer communications

Bulletins and campaigns Chevrolet 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 Chevrolet 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 Chevrolet vehicles?

It is a documented one: NHTSA's files hold 54 manufacturer filings and 0 owner reports naming B395A on 29 Chevrolet 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 Chevrolet models does B395A appear on most?

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

Does B395A on a Chevrolet 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.