TPMS valves / transmitters do not work unless the wheel is in motion. They have batteries in them and get turned on by wheel rotation. I believe it's called 'waking them up'.
There appear to be many mysteries about this whole system. When I initially switched to winter wheels without TPMS valves, it took almost 3 weeks and over 200 km's until the light came on.
Now I do have Honda TPMS valves in my winter wheels. My dealer does not charge to reprogram the system if it's combined with some other service.