Can I ask you how you got the event codes (3300 to 3400). I'm assuming via your dealer? Chevy chat will not get that specific with me, so I just wanted to make sure it's not just me. Thank you!I don't think that would be the case since I ordered a 6.2L Z71 which just got moved to 3400 today. It was at 3300 on Friday. I sure hope that's not the issue!