This study proposes a smart quality control (QC) framework for managing materials and spare parts in an electric vehicle (EV) manufacturing plant. The framework integrates Radio Frequency Identification (RFID) with the Etras Enterprise Resource Planning (ERP) system to digitalize inspection activities and improve real-time traceability. In parallel, structured Work Instructions (WI) were developed to strengthen workforce capability and reduce human error. A quasi-experimental design with pretest–posttest analysis was applied to 80 QC staff. The results showed that the integrated system reduced inspection errors by 87.18%, decreased processing time, and improved transparency in material flow. Employees trained with WI reported higher accuracy and satisfaction. The findings confirm that smart QC based on RFID–ERP integration offers a scalable model for digitalized quality assurance in advanced manufacturing.