Mine was missing a build date until about 4 days ago, when Chrysler finally emailed the answer to my question that I have been asking them for weeks. I asked... "According to your records, what is my cars official build date?" I probably asked that question about 10 times with in the last two weeks. I just got a response about 4 days ago. They said "Nov. 17th 2003". Good luck to all others who may have this same problem.