P012C
1 owner report and 19 manufacturer filings across 16 model years from Alfa Romeo, Fiat, Jeep, Mercedes-Benz.
Where P012C shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2019 Jeep Wrangler | Power Train | 5 | — | |
| 2025 Alfa Romeo Tonale | Not specified | 1 | — | |
| 2024 Alfa Romeo Tonale | Not specified | 1 | — | |
| 2023 Alfa Romeo Tonale eAWD | Not specified | 1 | — | |
| 2023 Fiat 500 | Not specified | 1 | — | |
| 2022 Fiat 500 | Not specified | 1 | — | |
| 2021 Fiat 500 | Not specified | 1 | — | |
| 2025 Jeep Compass | Not specified | 1 | — | |
| 2024 Jeep Compass | Not specified | 1 | — | |
| 2023 Jeep Compass | Not specified | 1 | — | |
| 2022 Jeep Compass | Not specified | 1 | — | |
| 2021 Jeep Compass | Not specified | 1 | — | |
| 2023 Jeep Renegade | Not specified | 1 | — | |
| 2022 Jeep Renegade | Not specified | 1 | — | |
| 2021 Jeep Renegade | Not specified | 1 | — | |
| 2021 Mercedes-Benz Sprinter | 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.
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P012C by make
The same record, one make at a time: the model years, bulletins and owner reports that name P012C on that maker’s vehicles.
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.
Driving at an elevation of 6,200' the check engine light illuminated with code P012C "Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low"
19 manufacturer filings name P012C. 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 P012C.
- 18-028-25 Service bulletin2025-06-05 · Unknown Or Other
- "Check Engine Light Illuminated - Erroneous Fault Codes Set Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ● P012C - Turbocharger/Supercharger Inlet Air Pressure Sensor 1 Circuit Low. ● P012D - Turbocharger/Supercharger Inlet Air Pressure Senso
- 18-022-20 REV. A Service bulletin2020-11-07 · Electrical System
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1. P012C - Turbocharger/Supercharger Inlet Air Pressu
- 18-022-20 REV. A Service bulletin2020-11-07 · Fuel System, Gasoline
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1. P012C - Turbocharger/Supercharger Inlet Air Pressu
- 18-021-20 REV. A Service bulletin2020-06-20 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1(APAC, EMEA and LATAM Only). P012C
What P012C means
Source: SAE J2012 / OBD-IIP012C 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 P012C
Source: NHTSA files and the OBD-II standardCan I keep driving with P012C 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.