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Diagnostic trouble code

P0366

4 owner reports and 20 manufacturer filings across 16 model years from Buick, Chevrolet, GMC, Hyundai and others.

PowertrainGeneric OBD-II code20 manufacturer filings4 owner reports

Where P0366 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Chevrolet CruzeEngine4
2016 Chevrolet SonicEquipment4
2017 Chevrolet SonicEngine3
2018 Buick CascadaEngine And Engine Cooling1
2017 Buick CascadaEngine And Engine Cooling1
2022 Chevrolet ColoradoElectrical System1
2021 Chevrolet ColoradoElectrical System1
2020 Chevrolet ColoradoEngine And Engine Cooling1
2022 GMC CanyonElectrical System1
2021 GMC CanyonEngine And Engine Cooling1
2020 GMC CanyonElectrical System1
2018 GMC CanyonElectrical System1
2019 Hyundai ElantraEngine1
2019 Hyundai KonaEngine1
2016 MINI CooperEngine1
2016 Ram 1500Power 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

Engine 10Electrical System 5Engine And Engine Cooling 4Equipment 4Power Train 1
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What owners said

Source: NHTSA complaint database

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

The owner brought the vehicle to the independent mechanic where the contact, diagnosed the vehicle and retrieved DTC code: P0366 (Cam Position Sensor and or the Engine)
2019 Hyundai Elantraat 29,428 milesJul 30, 2024NHTSA owner report
I put my Bosch code reader on the truck and it flashed P0366 which called out for the Crank Shaft sensor
2016 Ram 1500Nov 19, 2021NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0366. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P0366 means

Source: SAE J2012 / OBD-II

P0366 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 P0366

Source: NHTSA files and the OBD-II standard

Can I keep driving with P0366 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.