P0871 on Ram vehicles
P0871 is named on 9 Ram model years (2018–2022): 8 manufacturer filings and 2 owner reports in NHTSA’s files, across 3500, 2500.
Which Ram model years name P0871
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2019 Ram 3500 | Exterior Lighting | 1 | 1 |
| 2022 Ram 2500 | Power Train | 1 | — |
| 2022 Ram 3500 | Power Train | 1 | — |
| 2021 Ram 2500 | Service Brakes | 1 | — |
| 2021 Ram 3500 | Power Train | 1 | — |
| 2020 Ram 2500 | Power Train | 1 | — |
| 2020 Ram 3500 | Service Brakes | 1 | — |
| 2019 Ram 2500 | Power Train | 1 | — |
| 2018 Ram 3500 | Power Train | — | 1 |
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.
What Ram owners said
Source: NHTSA complaint databaseOwners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.
While entering the interstate highway and accelerating to merge into traffic the transmission would not shift properly and check engine light came with code p0871
Ram filings that name P0871
Source: NHTSA manufacturer communicationsBulletins and campaigns Ram filed with NHTSA whose summary names P0871. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- S2121000008RevC Service bulletin2022-06-02 · Exterior Lighting
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P0765 ? UD Solenoid Circuit, P0871 ? Transmission Fluid Pressure Sensor/Switch ?C? Circuit Performance, and/or P0755 ? 2C Solenoid Circuit, Set.
What P0871 means
Source: SAE J2012 / OBD-IIP0871 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 P0871 a known problem on Ram vehicles?
It is a documented one: NHTSA's files hold 8 manufacturer filings and 2 owner reports naming P0871 on 9 Ram model years (2018–2022). 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 P0871 appear on most?
2019 3500 (2 documents), 2022 2500 (1 document), 2021 2500 (1 document).
Does P0871 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.