P0404
4 owner reports and 31 manufacturer filings across 21 model years from Chevrolet, Dodge, Hyundai, Jeep and others.
Where P0404 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2024 Hyundai Sonata | Engine | 4 | — |
| 2024 Hyundai Tucson | Engine | 4 | — |
| 2021 Nissan Rogue | Engine And Engine Cooling | 3 | — |
| 2019 Nissan Altima | Engine And Engine Cooling | 1 | 1 |
| 2022 Nissan Sentra | Engine And Engine Cooling | 2 | — |
| 2021 Nissan Sentra | Engine And Engine Cooling | 2 | — |
| 2020 Nissan Sentra | Engine And Engine Cooling | 2 | — |
| 2017 Ram 2500 | Power Train | 2 | — |
| 2017 Ram 3500 | Power Train | 2 | — |
| 2018 Chevrolet Volt | Engine | — | 1 |
| 2017 Dodge Durango | Power Train | 1 | — |
| 2016 Dodge Durango | Power Train | 1 | — |
| 2017 Jeep Grand Cherokee | Exterior Lighting | 1 | — |
| 2016 Jeep Grand Cherokee | Power Train | 1 | — |
| 2022 Kia Sorento | Power Train | — | 1 |
| 2023 Mitsubishi Outlander | Engine | — | 1 |
| 2022 Nissan Altima | Engine And Engine Cooling | 1 | — |
| 2021 Nissan Altima | Engine And Engine Cooling | 1 | — |
| 2020 Nissan Altima | Engine And Engine Cooling | 1 | — |
| 2023 Nissan Rogue | Engine | 1 | — |
| 2022 Nissan Rogue | Engine | 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
What owners said
Source: NHTSA complaint databaseOwners’ 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 was diagnosed with an internal short in the EGR (Exhaust Gas Recirculation) Control Unit (Error codes P0404, P049D)
I have gotten this message several times and a OBD code reader gives code P0404
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0404. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- NTB25-0082025-03-20 · Engine
- "ENGINE MALFUNCTION POWER REDUCED SERVICE NOW" DISPLAYED IN COMBINATION METER IF YOU CONFIRM The customer states that a "Engine Malfunction Power Reduced Service Now" warning is being displayed, or was displayed in the past, OR DTC P0404 for “EGR A CONTROL� is stored as “Past� or “Current� in the ECM. ACTION Refer to the SERVICE PROCEDURE in this bulletin to: 1. Confirm the current ECM
- 25-01-023H DN Service campaign2025-03-13 · Engine
- The exhaust gas recirculation (EGR) valve assembly in certain vehicles may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially result in an electrical short. An electrical short within the EGR valve could lead to a Malfunction Indicator lamp (MIL) illumination (P0405, P0642, P0652, P0404/P049D/P240F). The California Air Resources Board has determin
- 24-01-080H Service campaign2024-09-25 · Engine
- The exhaust gas recirculation (EGR) valve assembly in certain vehicles (listed below) may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially result in an electrical short. An electrical short within the EGR valve could lead to a Malfunction Indicator lamp (MIL) illumination (P0405, P0642, P0652, P0404/P049D/P240F). Follow the information in this b
- 24-01-080H Service campaign2024-09-25 · Engine
- The exhaust gas recirculation (EGR) valve assembly in certain vehicles may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially result in an electrical short. An electrical short within the EGR valve could lead to a Malfunction Indicator lamp (MIL) illumination (P0405, P0642, P0652, P0404/P049D/P240F). The California Air Resources Board has determin
- NTB22-0972022-11-04 · Engine And Engine Cooling
- DTC P0404 STORED IN THE ECM AT TEMPERATURES BELOW 32°F IF YOU CONFIRM DTC P0404 (EGR A CONTROL) is stored in the ECM at temperatures below 32°F. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
- NTB22-067A2022-10-14 · Engine And Engine Cooling
- MIL ON WITH DTC P0401 AND/OR P0404 STORED IN THE ECM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
What P0404 means
Source: SAE J2012 / OBD-IIThe exhaust gas recirculation valve is not moving the way it was commanded.
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 P0404
Source: NHTSA files and the OBD-II standardCan I keep driving with P0404 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.