I'm not expert but I know that's not the problem.
I have a 2011 E92 Comp. and received my winter setup from Tirerack about a month ago. I opted for the Dunlop Winter Sport 3D 235/40/18 all around as keeping the staggered setup in the winter isn't as safe.
I didn't have any problems getting the tire pressure monitor to reset at all, just make sure you are at a stand-still when you "reset".
Also verify that you have the correct sensors installed on your wheels. 433mhz.