P0471 on Ram vehicles
P0471 is named on 8 Ram model years (2019–2022): 16 manufacturer filings and 0 owner reports in NHTSA’s files, across 2500, 3500.
Which Ram model years name P0471
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 Ram 2500 | Engine | 2 | — |
| 2022 Ram 3500 | Engine | 2 | — |
| 2021 Ram 2500 | Engine | 2 | — |
| 2021 Ram 3500 | Engine | 2 | — |
| 2020 Ram 2500 | Engine | 2 | — |
| 2020 Ram 3500 | Equipment | 2 | — |
| 2019 Ram 2500 | Equipment | 2 | — |
| 2019 Ram 3500 | Equipment | 2 | — |
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.
Ram filings that name P0471
Source: NHTSA manufacturer communicationsBulletins and campaigns Ram filed with NHTSA whose summary names P0471. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- S2118000001RevB Service bulletin2022-07-27 · Engine And Engine Cooling — Exhaust System
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 Performance, Set.
- S2118000001RevB Service bulletin2022-07-27 · Back Over Prevention
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 Performance, Set.
- S2118000001 Service bulletin2021-02-09 · Engine And Engine Cooling — Exhaust System
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 Performance, Set.
- S2118000001 Service bulletin2021-02-09 · Engine And Engine Cooling — Exhaust System
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 Performance, Set.
What P0471 means
Source: SAE J2012 / OBD-IIP0471 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. The record above is what Ram and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0471 a known problem on Ram vehicles?
It is a documented one: NHTSA's files hold 16 manufacturer filings and 0 owner reports naming P0471 on 8 Ram model years (2019–2022). 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 Ram models does P0471 appear on most?
2022 2500 (2 documents), 2021 2500 (2 documents), 2020 2500 (2 documents).
Does P0471 on a Ram 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.