TPMS Issues After Wheel Swap

[pulsar2121]

I have a 2012 Yaris with the 1.5L engine and the 5 speed manual transmission. I've got 50K miles on it and it's been a pretty good car so far. The only downside to owning a Yaris in North Dakota is the winter driving. Snow tires are pretty much a necessity for any two-wheel drive car around here in the winter.

So, after a few years of paying for tires to be swapped over every other season, I decided to get a second set of rims to lengthen the time in between tire swaps. I managed to get a set of rims off of a 2008 Yaris with TPMS sensors included.

The first couple times I drove it in town less than a mile and everything was fine. The next day after 20 minutes or so of highway driving, I got blink... blink... blink... (!) Crap! I had assumed since the TPMS sensors were the same between the '08 and '12 model years that the TPMS light would not give me any trouble. After reading through a couple of threads on this forum, I quickly realized that the ECU can only remember one set of rims at a time.

I bought this car new and would like to keep everything stock including the wiring. That being said, I do not want to bypass the TPMS feature. What do I need to do in order for the ECU to recognize the new rims? I'm expecting that I'll need to do this every time I change the rims (twice a year). So, hopefully it's not that hard. Also, are any special tools needed?