B2BA1
0 owner reports and 49 manufacturer filings across 14 model years from Cadillac, Chevrolet, GMC.
Where B2BA1 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2023 GMC Yukon | Electrical System | 9 | — | Battery → |
| 2023 Cadillac Escalade | Electrical System | 7 | — | Battery → |
| 2023 Chevrolet Suburban | Electrical System | 6 | — | Battery → |
| 2023 Chevrolet Silverado | Electrical System | 4 | — | Battery → |
| 2023 Chevrolet Tahoe | Electrical System | 4 | — | Battery → |
| 2023 GMC Sierra | Electrical System | 4 | — | Battery → |
| 2024 Chevrolet Silverado | Electrical System | 3 | — | Battery → |
| 2024 GMC Hummer EV | Forward Collision Avoidance | 3 | — | |
| 2024 GMC Sierra | Equipment Adaptive/Mobility | 3 | — | |
| 2023 GMC Hummer EV | Forward Collision Avoidance | 2 | — | |
| 2024 Cadillac CT5 | Forward Collision Avoidance | 1 | — | |
| 2023 Cadillac CT5 | Forward Collision Avoidance | 1 | — | |
| 2022 Cadillac CT5 | Electrical System | 1 | — | Battery → |
| 2025 GMC Hummer EV | Forward Collision Avoidance | 1 | — |
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.
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B2BA1 by make
The same record, one make at a time: the model years, bulletins and owner reports that name B2BA1 on that maker’s vehicles.
What it gets filed under
49 manufacturer filings name B2BA1. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names B2BA1.
- 24-NA-169 Service bulletin2024-10-16 · Forward Collision Avoidance — Adaptive Cruise Control
- This technical bulletin provides repair information to correct a customer concern of SuperCruise Dropping Out After Driving 30–60 Seconds and/or Service Driver Assist Message Illuminated with DTCs U1626, U3000, and/or B2BA1.
- 24-NA-169 Service bulletin2024-09-09 · Forward Collision Avoidance — Adaptive Cruise Control
- This technical bulletin provides repair information to correct a customer concern of Super Cruise Dropping Out After Driving 30–60 Seconds and/or Service Driver Assist Message Illuminated with DTCs U1626, U3000, and/or B2BA1.
- 24-NA-169 Service bulletin2024-08-27 · Forward Collision Avoidance — Adaptive Cruise Control
- This technical bulletin provides repair information to correct a customer concern of SuperCruise Dropping Out After Driving 30–60 Seconds and/or Service Driver Assist Message Illuminated with DTCs U1626, U3000, and/or B2BA1.
- 24-NA-063 Service bulletin2024-06-14 · Forward Collision Avoidance — Automatic Emergency Braking
- This service bulletin provides repair information to correct a customer concern of a Service Drivers Assist Message Illuminated in DIC with DTC B2BA1 Set.
- 24-NA-063 Service bulletin2024-04-04 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of a Service Drivers Assist Message Illuminated in DIC with DTC B2BA1 Set.
- 24-NA-063 Service bulletin2024-03-27 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of a Service Drivers Assist Message Illuminated in DIC with DTC B2BA1 Set.
What B2BA1 means
Source: SAE J2012 / OBD-IIB2BA1 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 B2BA1
Source: NHTSA files and the OBD-II standardCan I keep driving with B2BA1 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. 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.