BEWARE....I purchased winter tires w/rims from Tire Rack with TPMS (storing in my garage so I can change myself) only to find out the 2010 RX can only store 1 set of codes, (my 2006 could store 2 sets).
So my alternative is to pay the Dealer $90 every spring & fall to change the codes!!!
I am bringing it in for it's first 8000k oil change, and I will ask how I can disable the scensors completely.