Should my BCM be replaced or reprogrammed

Really, you need to have someone who is skilled diagnose these issues, other wise you will be guessing until you go through all your money. Sadly, I see it happen on this forum everyday. These cars, especially a 2005, is very complex with a dozen or more computers. Yes it could be the BCM, the connections, the BCM wiring, or a window switch, or a defective door actuator, or a wiring problem between the Power Train Control Module and the BCM or the theft system or a bad ground or ....... I hope that you are getting my drift, I mean this in the best possible light. here are some shops: https://repairpal.com/chevrolet-repair-in-yukon-oklahoma