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Diagnostic trouble code

P0452

3 owner reports and 36 manufacturer filings across 16 model years from Chrysler, Dodge, Fiat, Jeep and others.

PowertrainGeneric OBD-II code36 manufacturer filings3 owner reports

Where P0452 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2019 Dodge ChallengerPower Train9—
2019 Dodge ChargerPower Train4—
2022 Jeep Grand CherokeeExterior Lighting4—
2021 Jeep Grand CherokeeExterior Lighting4—
2020 Chrysler 300Engine And Engine Cooling3—
2020 Dodge ChallengerEquipment3—
2020 Dodge ChargerEquipment Adaptive/Mobility3—
2024 Dodge DurangoFuel/Propulsion System1—
2023 Dodge DurangoEngine1—
2022 Dodge DurangoEngine1—
2021 Dodge DurangoFuel/Propulsion System1—
2020 Dodge DurangoEngine1—
2016 Fiat 500 XFuel System, Gasoline—1
2021 Ram Promaster CityElectrical System1—
2020 Subaru CrosstrekFuel/Propulsion System—1
2019 Subaru CrosstrekFuel/Propulsion System—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

Power Train 6Exterior Lighting 6Electrical System 6Service Brakes, Hydraulic 5Fuel/Propulsion System 4Equipment 3
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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 vehicle has also had recurring difficulty accepting fuel since it was new, along with check-engine lights and DTC P0452
2019 Subaru CrosstrekJul 15, 2026NHTSA owner report
The vehicle was taken to the dealer, where it was diagnosed with DTC: P0456 and P0452
2016 Fiat 500 Xat 145,297 milesOct 24, 2025NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0452. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P0452 means

Source: SAE J2012 / OBD-II

P0452 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 P0452

Source: NHTSA files and the OBD-II standard

Can I keep driving with P0452 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.