I had the problem. I got the postcard in the mail about the extended warranty. Talked to my Ford dealer and they said that they could not change it unless it went bad. Left for a vacation to Montana the next week and the switch went bad half way to Montana. The symtoms are all you have is the fastest fan speed, no slow or medium fan. When I got back from vacation the Ford dealer fixed it under warranty. At least it got fixed with out cost to me.