From the Ford link below: "Factory or Bumper-to-Bumper Limited Warranty
A factory warranty comes with all new vehicles. During the coverage period, an authorized dealer will repair, replace or adjust all parts on your vehicle (except tires) that are defective in factory-supplied materials or workmanship."
Warranties & Extended Service Plans - Ford
If your vehicle is under warranty, and the dealer refuses to correct the problem, refer to the owner's manual for Ford service contacts. Audio and GPS units may be limited to a manufacturer's warranty. Ask for a clarification.