TPMS Failure *tried search*

[MillerMav]

Good morning all,

I recently stepped down from 19" to 18" wheels on my 2013 diesel. It's not a show car and I live on a dirt road in the country, the more sidewall the better. Anyway; I had new tires fitted to the 18's and they didn't come with sensors. I took it to my LTS and asked if new sensor came with the tires, they said yes and fitted them accordingly. I drove around for 1-2 days with no issues until I took it about 45 minutes up the highway then the TPMS light went off saying the module failed. I used my foxwell scanner to check and it states that all 4 wheel sensors are faulty.

My questions are: do I take the car back to the tire shop and ask them to replace the sensors? Is it possible to determine whether its the tire sensors or the module without buying a new module and swapping them out?

I'm leaning toward faulty sensors since this wasn't an issue for the last year of ownership. It seems that specific BMW sensors may be necessary but wouldnt the tire shop know that? It's a national chain so you would think their system would flag them for what kind to use.