P0A0C
0 owner reports and 12 manufacturer filings across 3 model years from Chevrolet.
Where P0A0C shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2017 Chevrolet Volt | Engine | 5 | — | |
| 2016 Chevrolet Volt | Electrical System | 4 | — | Battery → |
| 2018 Chevrolet Volt | Power Train | 3 | — |
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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What it gets filed under

12 manufacturer filings name P0A0C. 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 P0A0C.
- 21NA111 Service bulletin2021-05-06 · Air Bags
- This service bulletin provides repair information to correct a customer concern of a Check Engine Light Illuminated, No Start/ No Propulsion, DTC P0A0C.
- 21NA111 Service bulletin2021-05-06 · Engine And Engine Cooling
- This service bulletin provides repair information to correct a customer concern of a Check Engine Light Illuminated, No Start/ No Propulsion, DTC P0A0C.
- PIC6211A Service bulletin2017-08-29 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
- This Preliminary Information communication provides the technician with inspection and repair instructions for vehicles with a no start/no propulsion condition that is setting a DTC P0A0C for the high voltage interlock circuit. Technician will reprogram the Hybrid Powertrain Control Module 2 to resolve the concern. The HPCM2 will then ignore the interlock circuit and P0A0C will no longer be a vali
- 16185 Service bulletin2017-08-15 · Engine
- 16185-Customer Satisfaction. On certain vehicles, the high voltage interlock connector behind the high voltage battery disconnect relay fuse block cover may be susceptible to becoming recessed back into the high voltage battery disconnect relay assembly. This may cause an electrical disconnect which could result in a loss of vehicle propulsion and/or a no start condition. The malfunction indicator
- PIC6211 Service bulletin2016-08-05 · Electrical System
- THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH INSPECTION AND REPAIR INSTRUCTIONS FOR VEHICLES WITH A NO START OR NO PROPULSION CONDITION. TECHNICIAN WILL FIND DIAGNOSTIC TROUBLE CODE P0A0C FOR THE HIGH VOLTAGE INTERLOCK CIRCUIT. TECHNICIAN WILL INSPECT THE HIGH VOLTAGE INTERLOCK LOOP CONNECTOR IN THE FRONT OF THE HIGH VOLTAGE BATTERY TO MAKE SURE THE CONNECTOR IS FULLY SE
What P0A0C means
Source: SAE J2012 / OBD-IIP0A0C 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 P0A0C
Source: NHTSA files and the OBD-II standardCan I keep driving with P0A0C 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.