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Federal filingsHome›Trouble codes› P0452
Diagnostic trouble code

P0452

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

Powertrain Generic OBD-II code 36 manufacturer filings 3 owner reports

Where P0452 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2019 Dodge ChallengerPower Train9—
2019 Dodge ChargerEngine4—
2022 Jeep Grand CherokeeService Brakes4—Brake pads →
2021 Jeep Grand CherokeeExterior Lighting4—Headlight assembly →
2020 Chrysler 300Equipment Adaptive/Mobility3—
2020 Dodge ChallengerEquipment Adaptive/Mobility3—
2020 Dodge ChargerEngine3—
2024 Dodge DurangoFuel/Propulsion System1—Fuel pump →
2023 Dodge DurangoFuel/Propulsion System1—Fuel pump →
2022 Dodge DurangoEngine1—
2021 Dodge DurangoEngine1—
2020 Dodge DurangoFuel/Propulsion System1—Fuel pump →
2016 Fiat 500 XFuel/Propulsion System—1Fuel pump →
2021 Ram Promaster CityPower Train1—
2020 Subaru CrosstrekFuel/Propulsion System—1Fuel pump →
2019 Subaru CrosstrekFuel/Propulsion System—1Fuel pump →

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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P0452 by make

The same record, one make at a time: the model years, bulletins and owner reports that name P0452 on that maker’s vehicles.

Dodge 9

What it gets filed under

Service Brakes 9 Fuel/Propulsion System 7 Engine 6 Power Train 5 Exterior Lighting 5 Electrical System 3

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 Crosstrek Jul 15, 2026 NHTSA owner report
The vehicle was taken to the dealer, where it was diagnosed with DTC: P0456 and P0452
2016 Fiat 500 X at 145,297 miles Oct 24, 2025 NHTSA owner report

36 manufacturer filings name P0452. 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.

Read the filingsSearch every bulletin →
Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0452.

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.

From here
Get a model's new bulletins by email See what owners reported Look up a bulletin by its number Watch a VIN for new recalls

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 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.

Where to go next

pages beside this code
Filed alongside P0716 Another code that appears in the same filings and owner reports as P0452.Filed alongside P0733 Another code that appears in the same filings and owner reports as P0452.Vehicle 2019 Dodge Challenger The model year P0452 is filed against most often.The data Trouble codes by API GET /v1/dtc joins every code to bulletins and owner reports — free tier, no card.