Located in Germany, I came across that since October or November 2020 (~VIN 830xxx) new Tesla Model 3 (2021 refresh, made in USA) come with new tire pressure sensors.
Before 433MHz sensors were used, now technology has switched to Bluetooth. Unfortunately there is no backward compatibility! Currently all tires and sensors on the free market seem to be incompatible to newly purchased Tesla Model 3 as it can´t read tire pressure.
So you are confronted with permanent warnings on the display. At this time (Dec 2020) the only way to get compatible sensors is to buy these (quite expensive) from Tesla.
I tried, but it seems they are totally sold out...