P2251
0 owner reports and 13 manufacturer filings across 5 model years from Cadillac, Chevrolet, Jeep.
Where P2251 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 Chevrolet Corvette | Engine And Engine Cooling | 4 | — |
| 2020 Chevrolet Corvette | Engine And Engine Cooling | 3 | — |
| 2025 Jeep Wrangler | Structure | 3 | — |
| 2021 Chevrolet Corvette | Engine And Engine Cooling | 2 | — |
| 2022 Cadillac CT5 | Engine And Engine Cooling | 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.
What it gets filed under
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2251. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- 23-019-25 REV. B2025-10-25 · Structure — Body
- Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): â—� P0133 - O2 Sensor 1/1 Slow Response. â—� P2251 - O2 Sensor 1/1 Negative Current Control Circuit/Open. â—� P0131 - O2 Sensor 1/1 Circuit Low
- 23-019-25 REV. A2025-04-26 · Structure — Body
- Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): â—� P0133 - O2 Sensor 1/1 Slow Response. â—� P2251 - O2 Sensor 1/1 Negative Current Control Circuit/Open. â—� P0131 - O2 Sensor 1/1 Circuit Low. â—� P2626 - O2 Sensor 1/1 Pump Cell Current Tr
- 23-019-252025-04-22 · Unknown Or Other
- "Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): â—� P0133 - O2 Sensor 1/1 Slow Response. â—� P2251 - O2 Sensor 1/1 Negative Current Control Circuit/Open. â—� P0131 - O2 Sensor 1/1 Circuit Low. â—� P2626 - O2 Sensor 1/1 Pump Cell Current T
- 22-NA-0192022-09-16 · Engine And Engine Cooling
- This service bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set.
- 22-NA-0192022-04-21 · Engine And Engine Cooling
- This service bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set.
- 22NA0192022-02-17 · Exterior Lighting
- This service bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set.
What P2251 means
Source: SAE J2012 / OBD-IIP2251 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 P2251
Source: NHTSA files and the OBD-II standardCan I keep driving with P2251 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.