Sorry to say it....but welcome to the TPMS Club.
I posted this elsewhere as another means to vent about your issue:
"I've filed a complaint with the National Highway Traffic Safety Administration over this. I really don't think it will help, but maybe if we all did, then Nissan would get on the stick. Safety equipment that doesn't work just doesn't promote safety.
If you would like to file a complaint with the NHTSA, then go here:
http://www-odi.nhtsa.dot.gov/ "
There are 6 TPMS Reports right now....the more the merrier.