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HomeTrouble codesB000A
Diagnostic trouble code

B000A

1 owner report and 55 manufacturer filings across 12 model years from Buick, Chevrolet.

BodyGeneric OBD-II code55 manufacturer filings1 owner report

Where B000A shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2023 Buick EncoreElectrical System5
2022 Buick EncoreElectrical System5
2021 Buick EncorePower Train5
2020 Buick EncoreElectrical System5
2023 Chevrolet MalibuPower Train5
2022 Chevrolet MalibuPower Train5
2021 Chevrolet MalibuPower Train5
2020 Chevrolet MalibuElectrical System5
2023 Chevrolet TrailblazerElectrical System5
2022 Chevrolet TrailblazerPower Train5
2021 Chevrolet TrailblazerElectrical System5
2019 Buick RegalPower Train1

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

What it gets filed under

Electrical System 26Power Train 23Equipment 7
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Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names B000A. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What B000A means

Source: SAE J2012 / OBD-II

B000A sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

Common questions about B000A

Source: NHTSA files and the OBD-II standard

Can I keep driving with B000A stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.