 The rotors warped when the truck was new and with no wear on the brake pads. Dealer turned the rotors and they warped again. Ford refused to replace the rotors. i took it to a repair shop and they installed better rotors and I have had no problem since. Cost $1400. I had other warranty complaints as well. Very poor warranty. Dealer's response was we fixed it like Ford told us to. "Not my problem, talk to Ford." That's Freeway Ford in Denver. Stay clear. buyer beware.I am adding this in 2018. The work I had performed (upgrading the rotors) solved the problem. Ford nor the dealer did nothing to help.