Wow, I saved a lot of money. America's Tires wanted to charge me $325 for all 4 installed/programmed etc. I bought them and took them to an independent tire shop who mounted them on wheels for $60. After that, all I had to do was drive it to sync it with the car. You don't have to program anything. I saved a decent amount of money by reading online that Town & Country 2007 requires no programming. And no more tire pressure system service messages!