The AIAG FMEA Manual 4th Edition, introduced by Chrysler, Ford, and GM, expands the FMEA approach by focusing on the entire analysis process rather than just completing forms. It addresses common issues such as column shifting, improper use of RPN, and treating FMEA as a static document. The updated guidance emphasizes proper risk evaluation, integration with APQP phases, and continuous improvement during production to strengthen product and process reliability.