Had a flat out in the country. Had a can of fix a flat. I've used it for years on other cars. So, I used on my Prius tire. Went to the nearest WalMart to have tire fixed. They said, "Bad News" The Fix a Flat had ruined the TPMS, and therefor they could not repair the tire. I would have to go to Toyota to have the TPMS replaced. Couldn't they still have fixed the tire? Now I am driving on the little toy spare. The nearest Toyota Dealer is 50 miles away, and I understand the tire is only good for 50 miles, and I"ve already driven 10 on it. If I make it to my Toyota dealer, they are going to have to fix TPMS, then repair tire. And I'm about ready to have my Snow Tires remounted. I'm wondering if my tire dealer could just remount snow tires (including one on this rim with bad TPMS). Then I could drive the distance to have the system repair done. That would avoid driving the distance on little spare. And save cost of repairing tire which was on its last leg anyway. But I wonder if they'll mount on rim with bad TPMS. WalMart repairman wouldn't touch it.