Are you sure about that? AllData is showing me a part number for a Tire Pressure Sender. I could have sworn that tire pressure was one of the idiot lights on the dash.
If your valve stems look some what like this then you have some sort of TPMS. If it looks like this then you don't have a TPMS. The differences are mostly the way the valve stems are mounted. TPMS will have a nut mounting base where the regular one will be rubber neck.
Another way to find out is to let the air out and see if you get a warning.
i agree with you mush, when i shop for wheels it keeps throwing me that option too.
IF you wanted to add a TPMS to your vehicle, there are aftermarket systems you can purchase, its an easy install too if you are mech inclined, just takes a lil time.
no need for it.. i can tell if a tire is low on my own(rofl2)
i just hadnt taken the time to look at my valve stems or warning lights to see if it was there... i was just worried for a second that my winter setup might end up costing more than planned