P163A
0 owner reports and 11 manufacturer filings across 7 model years from Buick, Chevrolet, GMC.
Where P163A shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2024 Chevrolet Silverado 2500HD | Engine And Engine Cooling | 3 | — |
| 2024 GMC Sierra 2500HD | Engine And Engine Cooling | 3 | — |
| 2025 Buick Enclave | Fuel/Propulsion System | 1 | — |
| 2025 Chevrolet Traverse | Fuel/Propulsion System | 1 | — |
| 2024 Chevrolet Traverse | Fuel/Propulsion System | 1 | — |
| 2025 GMC Acadia | Fuel/Propulsion System | 1 | — |
| 2024 GMC Acadia | Fuel/Propulsion System | 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.
What it gets filed under
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P163A. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- PIP60612025-05-01 · Fuel/Propulsion System
- This Preliminary information communicates there could be an electrical connection concerns at the high pressure fuel pump, and may set any combnation of diagnostic trouble codes, P0089 P0090 P00C6 P163A and / or P228C. The technician should inspect the terminals and manipulate the harness to see if any of the codes can be duplicated. Replace or repair connector or terminals as needed.Â
- PIP5916B2023-05-31 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
- This Preliminary information communicates that there is a software issue in the ecm for the following dtc's P062D P163A P163B, P0402 P144E. P2635 which could cause a crank, no start issue, and how to correct.
- PIP5916A2023-05-30 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
- This Preliminary information communicates that there is a software issue in the ecm for the following dtc's P062D P163A P163B, P0402 P144E. P2635 which could cause a crank, no start issue, and how to correct.
- PIP59162023-04-17 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm)
- This Preliminary information communicates that there is a software issue in the ecm for the following dtc's P062D P163A P163B, causing a crank, no start issue, and how to correct
What P163A means
Source: SAE J2012 / OBD-IIP163A is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
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 P163A
Source: NHTSA files and the OBD-II standardWhy does this page not define P163A?
Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.
Can I keep driving with P163A stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. 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.