1. What is a PCR?
Also called a Field Investigation Report (FIR) at some OEMs. It's the end-to-end story of one failure: what the customer said, what the dealer saw, what the technician fixed, what was OK and Not OK, the parts replaced, the photos, the sensors, the invoice, and the root cause.
Commercial-vehicle makers collect thousands every month across Excel, PDF, and Word. Yet usually only engineering and warranty teams ever open them.