The build date is not really coded in the VIN, but it does indicate the model, year, and construction sequence, etc. of the vehicle. If you look on your driver door jamb it will indicate the month and year the vehicle was built. However, using the VIN# you can pull up the actual day it was built if you have access to the GMVIS (GM Vehicle Inquiry System). I could pull it up if you want, I'd just need the last 8 digits of the VIN.rlpmac said:How do I determine the build date of my new Acadia? I realize its within the VIN, but what is the logic?