I am not sure what you are asking? The next number in the production run? I am not aware as I only have the one Bolt. That being said I believe this problem has been eliminated with the software update so just make sure they flash the ECM software to the latest version if you purchase the Bolt EUV you are looking at.What is the next number? I'm looking at a 412_72xx Launch Edition that is supposed to be on the lot. I'm trying to get close to the build date without going to the lot. Evidently, it's not buried in the VIN. Thanks!