Received the GM replacement key fob. They sent a 3 button Buick version which is fine, although I would have preferred the same 2 button version as my OG. Went through the reprogramming procedure bridging pins 4 & 8 in the OBD port with a paper clip. Got an immediate lock/unlock and then held both lock & unlock buttons down for ~30 seconds for both fobs. Everything worked, total of 5 minutes to complete. Back in business With 2 key and 2 working fobs now. Case closed….well, I know my automotive ocd will keep my eye out for a 2 button fob like my original.