P026A
0 owner reports and 29 manufacturer filings across 17 model years from Cadillac, Chevrolet, GMC, Jaguar.
Where P026A shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2024 Chevrolet Suburban | Engine | 2 | — | |
| 2022 Jaguar F-Type | Engine | 2 | — | |
| 2021 Jaguar F-Type | Engine | 2 | — | |
| 2020 Jaguar F-Type | Engine | 2 | — | |
| 2019 Jaguar F-Type | Engine | 2 | — | |
| 2018 Jaguar F-Type | Engine | 2 | — | |
| 2017 Jaguar F-Type | Engine | 2 | — | |
| 2016 Jaguar F-Type | Engine | 2 | — | |
| 2019 Jaguar XJ | Engine | 2 | — | |
| 2018 Jaguar XJ | Engine | 2 | — | |
| 2017 Jaguar XJ | Engine | 2 | — | |
| 2016 Jaguar XJ | Engine | 2 | — | |
| 2024 Cadillac Escalade | Engine | 1 | — | |
| 2018 Chevrolet Silverado 3500HD | Equipment | 1 | — | |
| 2024 Chevrolet Tahoe | Engine | 1 | — | |
| 2017 GMC Sierra 3500HD | Equipment | 1 | — | |
| 2023 Jaguar F-Type | Engine | 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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P026A by make
The same record, one make at a time: the model years, bulletins and owner reports that name P026A on that maker’s vehicles.
What it gets filed under

29 manufacturer filings name P026A. 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 P026A.
- 21-NA-271 Service bulletin2024-08-02 · Engine
- This bulletin advises the technician of a possible kinked coolant hose that might be causing the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P026A Set.
- PIP5481B Service bulletin2017-12-20 · Equipment
- This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Code P026A. The owner's manual advises not to drive above 45 MPH with a snowplow installed.
- SSM65437Attachme Service bulletin2013-05-22 · Engine And Engine Cooling
- DTC P026A on Supercharged Engines only
- SSM65437 Service bulletin2013-05-22 · Engine And Engine Cooling — Engine — Gasoline — Turbo/Supercharger
- DTC P026A on Supercharged Engines only
What P026A means
Source: SAE J2012 / OBD-IIP026A 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 P026A
Source: NHTSA files and the OBD-II standardCan I keep driving with P026A 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.