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Home›Trouble codes›P0456› Dodge
Diagnostic trouble code · Dodge

P0456 on Dodge vehicles A very small leak in the evaporative emissions system

P0456 is named on 14 Dodge model years (2016–2022): 82 manufacturer filings and 1 owner report in NHTSA’s files, across Challenger, Charger, Dart, Durango, Journey.

Powertrain 14 model years 82 manufacturer filings 1 owner report

Which Dodge model years name P0456

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2019 Dodge ChallengerPower Train18—
2016 Dodge ChallengerElectrical System12—
2016 Dodge ChargerPower Train12—
2019 Dodge ChargerPower Train11—
2016 Dodge DartPower Train7—
2022 Dodge ChallengerPower Train4—
2019 Dodge DurangoPower Train4—
2021 Dodge ChallengerFuel/Propulsion System3—
2018 Dodge DurangoPower Train3—
2016 Dodge JourneyElectrical System3—
2022 Dodge ChargerPower Train2—
2017 Dodge JourneyFuel/Propulsion System11
2020 Dodge DurangoFuel/Propulsion System1—
2020 Dodge JourneyElectrical System1—

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Power Train 35 Electrical System 26 Engine 7 Fuel/Propulsion System 6
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Dodge filings that name P0456

Source: NHTSA manufacturer communications

Bulletins and campaigns Dodge filed with NHTSA whose summary names P0456. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P0456 means

Source: SAE J2012 / OBD-II

A very small leak in the evaporative emissions system.

A stored code names the test that failed, never the part that caused it. The record above is what Dodge and its owners have filed about it; the code’s page across every make has the whole file.

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

Source: NHTSA files and the OBD-II standard

Is P0456 a known problem on Dodge vehicles?

It is a documented one: NHTSA's files hold 82 manufacturer filings and 1 owner report naming P0456 on 14 Dodge model years (2016–2022). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.

Which Dodge models does P0456 appear on most?

2019 Challenger (18 documents), 2016 Challenger (12 documents), 2016 Charger (12 documents).

Does P0456 on a Dodge mean it is recalled?

No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.

Where to go next

pages beside this code
Filed alongside P0442 Another code that appears in the same filings and owner reports as P0456.Filed alongside P04F0 Another code that appears in the same filings and owner reports as P0456.Vehicle 2019 Dodge Challenger The model year P0456 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.