P0071
0 owner reports and 63 manufacturer filings across 33 model years from Buick, Cadillac, Chevrolet, Chrysler and others.
Where P0071 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2017 Ford Fusion | Power Train | 4 | — | |
| 2025 Ford Bronco | Power Train | 3 | — | |
| 2024 Ford Bronco | Power Train | 3 | — | |
| 2023 Ford Bronco | Power Train | 3 | — | |
| 2022 Ford Bronco | Power Train | 3 | — | |
| 2021 Ford Bronco | Power Train | 3 | — | |
| 2017 Ford C-MAX | Equipment | 3 | — | |
| 2017 Lincoln MKZ | Equipment | 3 | — | |
| 2025 Ford F-250 Super Duty | Power Train | 2 | — | |
| 2024 Ford F-250 Super Duty | Power Train | 2 | — | |
| 2023 Ford F-250 Super Duty | Power Train | 2 | — | |
| 2025 Ford F-350 Super Duty | Power Train | 2 | — | |
| 2024 Ford F-350 Super Duty | Power Train | 2 | — | |
| 2023 Ford F-350 Super Duty | Power Train | 2 | — | |
| 2025 Ford F-450 Super Duty | Power Train | 2 | — | |
| 2024 Ford F-450 Super Duty | Power Train | 2 | — | |
| 2023 Ford F-450 Super Duty | Power Train | 2 | — | |
| 2026 Ford Ranger | Electrical System | 2 | — | Battery → |
| 2025 Ford Ranger | Power Train | 2 | — | |
| 2024 Ford Ranger | Power Train | 2 | — | |
| 2017 Lincoln Continental | Engine | 2 | — | |
| 2017 Buick Encore | Equipment | 1 | — | |
| 2025 Cadillac Lyriq | Not specified | 1 | — | |
| 2024 Cadillac Lyriq | Not specified | 1 | — | |
| 2025 Cadillac Optiq | Not specified | 1 | — |
Showing the 25 model years where P0071 appears most; it is on file for 33 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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P0071 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0071 on that maker’s vehicles.
What it gets filed under
63 manufacturer filings name P0071. 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 P0071.
- TSB 26-2372 Service bulletin2026-08-13 · Electrical System
- This bulletin supersedes 26-2301. Reason for update: to update the Pinpoint Tests referenced in Step 1. Some of the vehicles listed in the Model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
- TSB 26-2301 Service bulletin2026-06-30 · Electrical System
- Some of the vehicles listed in the Model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
- TSB 26-2291 Service bulletin2026-06-19 · Unknown Or Other
- This bulletin supersedes 26-2006. Reason for update: update the Parts list to correct the ambient air temperature service part number. Some vehicles listed in the model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
- TSB 26-2251 Service bulletin2026-05-28 · Power Train
- This article supersedes TSB 25-2545. Reason for update: To correct the current Pinpoint Test description. Some of the vehicles listed in the Model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
- SSM 54781 Service bulletin2026-04-27 · Power Train
- Some 2021-2025 Bronco vehicles built on or before 09-Sep-2025 may require replacement of the ambient air temperature sensor for various concerns. Diagnostic trouble codes (DTC) P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM). A concern has been identified in TSB 26-2006 that previously instructed replacement of the incorrect ambient air temperature sensor for the v
- TSB 26-2006 Service bulletin2026-04-17 · Power Train
- Some vehicles listed in the model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
What P0071 means
Source: SAE J2012 / OBD-IIP0071 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 P0071
Source: NHTSA files and the OBD-II standardCan I keep driving with P0071 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.