P0771
0 owner reports and 487 manufacturer filings across 54 model years from Ford, Lincoln.
Where P0771 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2020 Ford Explorer | Power Train | 17 | — | |
| 2021 Ford Mustang | Power Train | 17 | — | |
| 2022 Ford Explorer | Power Train | 16 | — | |
| 2021 Ford Explorer | Power Train | 16 | — | |
| 2022 Ford F-150 | Power Train | 16 | — | |
| 2021 Ford F-150 | Power Train | 16 | — | |
| 2022 Ford Expedition | Power Train | 13 | — | |
| 2022 Ford Mustang | Power Train | 13 | — | |
| 2022 Lincoln Navigator | Power Train | 13 | — | |
| 2020 Ford F-150 | Power Train | 12 | — | |
| 2020 Ford Mustang | Power Train | 12 | — | |
| 2019 Ford Mustang | Power Train | 12 | — | |
| 2018 Ford Mustang | Power Train | 12 | — | |
| 2022 Ford Transit | Power Train | 12 | — | |
| 2021 Ford Transit | Power Train | 12 | — | |
| 2020 Ford Transit | Power Train | 12 | — | |
| 2021 Ford Expedition | Power Train | 11 | — | |
| 2020 Ford Expedition | Power Train | 11 | — | |
| 2019 Ford Expedition | Power Train | 11 | — | |
| 2018 Ford Expedition | Power Train | 11 | — | |
| 2019 Ford F-150 | Power Train | 11 | — | |
| 2018 Ford F-150 | Power Train | 11 | — | |
| 2017 Ford F-150 | Power Train | 11 | — | |
| 2023 Ford Transit | Power Train | 11 | — | |
| 2021 Lincoln Navigator | Power Train | 11 | — |
Showing the 25 model years where P0771 appears most; it is on file for 54 in total.
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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P0771 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0771 on that maker’s vehicles.
What it gets filed under
487 manufacturer filings name P0771. 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.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0771.
- TSB 26-2406 Service bulletin2026-09-05 · Unknown Or Other
- Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P2704 and P0771 stored in the powertrain control module (PCM)/transmission control module (TCM) This may be due to sticking valves in the main control valve body and/or damage
- TSB 26-2375 Service bulletin2026-08-12 · Engine
- This article supersedes TSB 26-2050 to increase the labor operation allowance of labor operations A and B. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTC) P2704 and P0771 stored in the PCM/TCM. This may be due to a calibration in the
- TSB 26-2086 Service bulletin2026-03-02 · Power Train
- Some of the vehicles listed in the Model statement above may exhibit poor shift quality with an illuminated powertrain malfunction (wrench) indicator and diagnostic trouble codes (DTC) P2704 and P0771 stored in the transmission control module (TCM). This may be due to the software in the TCM. Additional model information: 6.7L Diesel Engine 2023-2024 F-Super Duty F-250/F-350/F-450 2024 F-Sup
- TSB 26-2050 Service bulletin2026-02-16 · Power Train
- This article supersedes TSB 24-2142 to update the Parts List, Service Procedure (Steps 1-2), and increase the labor operation allowances to reprogram the PCM/TCM. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTC) P2704 and P0771 stored
- TSB 24-2142 Service bulletin2024-06-06 · Power Train
- This article supersedes TSB 23-2376 to update the Part List and the Service Procedure. Some 2022-2024 F-550 and F-600 F-Super Duty vehicles equipped with a 10R140 automatic transmission and 6.7L diesel engine may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P2704 and P0771 stored in the transmission control module (TCM) with poor shift quali
- TSB 24-2176 Service bulletin2024-05-31 · Unknown Or Other
- This article supersedes TSBs 24-2100 and 24-2070 to add 2023 F-150 vehicles, update the TSB Issue statement and the TSB Service Procedure. Some 2021-2023 F-150, 2022-2023 Expedition/Navigator/Mustang and 2020-2023 Transit/Explorer/Aviator vehicles equipped with a 10R80/10R80MHT transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp
What P0771 means
Source: SAE J2012 / OBD-IIP0771 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.
Common questions about P0771
Source: NHTSA files and the OBD-II standardCan I keep driving with P0771 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.