Field-failure reports come back from the OEM in vehicle-fleet language: VINs, mileage at failure, dealer notes, replaced-part part numbers. The process engineer thinks in line language: cycle times, press tonnage, station temperature, batch numbers. Nobody translates between the two, so the field report ends up in a folder and the line keeps producing the same way.
When a pattern finally surfaces — same component, same failure mode, three OEMs over a year — the corrective action is usually a one-time tightening of an inspection that doesn't address the upstream parameter that drifted. The next batch will eventually fail the same way.
The data to close the loop exists: batch genealogy in the MES, parameter history in the historian, field reports on the OEM portal. What's missing is the agent that pulls all three together and gives the process engineer something to actually change.