Had the same problem as you, the dealer installed a new BCM but this did not fix my windows, they were still not working right.
Nissan then told the dealer that the BCM that they sent out did not have the New programing in it! GO FIGURE!
So they had to to reflash it, they downloaded they program from Nissan.
After they had installed the new program in the BCM I have not had one prolebm with my windows not working right! and this was back in April.
So everybody go and get your windows fixed!
Just thought that I would let everybody know this.
