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B395A on Cadillac vehicles

B395A is named on 15 Cadillac model years (2019–2023): 32 manufacturer filings and 0 owner reports in NHTSA’s files, across XT4, CT6, XT5, XT6.

Body 15 model years 32 manufacturer filings

Which Cadillac model years name B395A

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2021 Cadillac XT4Equipment3—
2020 Cadillac XT4Equipment3—
2023 Cadillac XT4Equipment2—
2023 Cadillac XT5Back Over Prevention2—
2023 Cadillac XT6Electrical System2—
2022 Cadillac XT4Equipment2—
2022 Cadillac XT5Back Over Prevention2—
2022 Cadillac XT6Equipment2—
2021 Cadillac XT5Back Over Prevention2—
2021 Cadillac XT6Electrical System2—
2020 Cadillac CT6Electrical System2—
2020 Cadillac XT5Back Over Prevention2—
2020 Cadillac XT6Equipment2—
2019 Cadillac CT6Back Over Prevention2—
2019 Cadillac XT4Equipment2—

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 12 Back Over Prevention 12 Electrical System 8
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Cadillac filings that name B395A

Source: NHTSA manufacturer communications

Bulletins and campaigns Cadillac 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 Cadillac 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 Cadillac vehicles?

It is a documented one: NHTSA's files hold 32 manufacturer filings and 0 owner reports naming B395A on 15 Cadillac 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 Cadillac models does B395A appear on most?

2021 XT4 (3 documents), 2020 XT4 (3 documents), 2020 CT6 (2 documents).

Does B395A on a Cadillac 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.