Tire pressure monitors
Drifting
Joined: Dec 2019
Posts: 1,816
Likes: 616
From: Blacksburg Va
I don't know for sure about letting all the air out. But I can tell you that I swap tires 2 times per month to run autocrosses and I don't pay any attention to where I mount the tires. Obviously front vs rear is not mixed up but left vs right I pay no attention to. And the TP sensor system doesn't seem to care.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,821
From: Charlotte, NC (formerly Endicott, NY)
NO. You can leave them in the same place or you can swap tire positions from side to side, then drive the car (run flats let you drive the car) it will learn the new positions and report 0 tire pressure in all 4 wheels with each wheel being in the new correct position. It doesn't really matter as the car learns the wheel position and tire pressure for that position. The car learns where the sensors are located just by driving the car.
Bill
Bill
