Checked how to receive those with SDR. Turns out they are very low power and you need to basically touch the tire. Also the transmit in minute intervals. Bit exactly a a smoking gun in terms of mass surveillance.
I have an RTL-SDR rig with the stock tiny omni antenna in a second story of a building adjacent a public parking lot. I'm using rtl433 and I am able to reliably pick up TPMS from the lot. I've never done any testing to see what the metes and bounds of my reception are, but it's definitely not touching the tire. My rig is at least 30 feet away from the closest parking spot.
