I forgot to post this when I saw it last month. http://www.consumeraffairs.com/news04/2005/nhtsa_tire_pressure.html April 8, 2005 All passenger cars must have tire pressure monitoring systems beginning with the 2006 model year according to a new motor vehicle safety standard made final yesterday by the National Highway Traffic Safety Administration (NHTSA.) . . This is NHTSA's second attempt to follow Congress' instructions. Its first rule relied on "indirect" tire monitors which would have operated off the antilock braking system, as opposed to the current rule, which requires sensors attached to each wheel. Public Citizen sued NHTSA over the first rule, saying the indirect monitors were ineffective. A federal appeals court in New York agreed and threw out NHTSA's regulation. Public citizen = Busybody group formed by Ralph Nader. So thanks to these "helpful individuals", I get to pay more for my next car for something I don't want and will get to pay even more if I want to put aftermarket wheels on the vehicle. Please save me from people trying to help me. I can't afford it and don't need the extra work..