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Diagnostic trouble code · Cadillac

B3980 on Cadillac vehicles

B3980 is named on 8 Cadillac model years (2017–2022): 24 manufacturer filings and 0 owner reports in NHTSA’s files, across Escalade, XT5, XT6.

Body 8 model years 24 manufacturer filings

Which Cadillac model years name B3980

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2017 Cadillac EscaladeEquipment8—
2018 Cadillac EscaladeEngine6—
2019 Cadillac EscaladeElectrical System4—
2020 Cadillac EscaladeElectrical System2—
2022 Cadillac XT5Equipment1—
2022 Cadillac XT6Exterior Lighting1—
2019 Cadillac XT5Equipment1—
2018 Cadillac XT5Electrical System1—

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.

Electrical System 9 Equipment 5 Suspension 2 Engine 2
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Cadillac filings that name B3980

Source: NHTSA manufacturer communications

Bulletins and campaigns Cadillac filed with NHTSA whose summary names B3980. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What B3980 means

Source: SAE J2012 / OBD-II

B3980 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 B3980 a known problem on Cadillac vehicles?

It is a documented one: NHTSA's files hold 24 manufacturer filings and 0 owner reports naming B3980 on 8 Cadillac model years (2017–2022). 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 B3980 appear on most?

2017 Escalade (8 documents), 2018 Escalade (6 documents), 2019 Escalade (4 documents).

Does B3980 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.