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Federal filingsHome›Trouble codes› P0009
Diagnostic trouble code

P0009

0 owner reports and 59 manufacturer filings across 24 model years from Buick, Cadillac, Chevrolet, GMC.

Powertrain Generic OBD-II code 59 manufacturer filings

Where P0009 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2016 Buick EnclaveEquipment Adaptive/Mobility4—
2016 Buick LaCrosseEquipment Adaptive/Mobility4—
2016 Chevrolet ColoradoEquipment Adaptive/Mobility4—
2016 Chevrolet EquinoxEquipment Adaptive/Mobility4—
2016 Chevrolet ImpalaEngine4—
2016 Chevrolet TraverseEquipment Adaptive/Mobility4—
2016 GMC AcadiaEquipment Adaptive/Mobility4—
2016 GMC CanyonEngine4—
2016 GMC TerrainEngine4—
2016 Cadillac SRXEngine3—
2018 Buick EnclaveEngine2—
2017 Buick EnclaveEngine2—
2018 Cadillac ATSEngine2—
2017 Cadillac ATSEngine2—
2018 Cadillac CTSEngine2—
2016 Cadillac XTSEquipment Adaptive/Mobility2—
2019 Cadillac XTSEngine1—
2018 Cadillac XTSEngine1—
2017 Cadillac XTSEngine1—
2019 Chevrolet ImpalaEngine1—
2018 Chevrolet ImpalaEngine1—
2017 Chevrolet ImpalaEngine1—
2017 Chevrolet TraverseEngine1—
2017 GMC TerrainEngine1—

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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P0009 by make

The same record, one make at a time: the model years, bulletins and owner reports that name P0009 on that maker’s vehicles.

Chevrolet 8Cadillac 8

What it gets filed under

Engine 43 Equipment Adaptive/Mobility 16

59 manufacturer filings name P0009. 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.

Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0009.

What P0009 means

Source: SAE J2012 / OBD-II

P0009 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.

From here

Common questions about P0009

Source: NHTSA files and the OBD-II standard

Can I keep driving with P0009 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.