Brake Squeaking Noise problems of the 2009 Cadillac CTS

The contact owns a 2009 Cadillac Cts. The contact heard a squeaking noise in the rear brakes immediately after the vehicle was purchased. The contact was driving approximately 25 mph. He took the vehicle to the dealer who resurfaced the rotors. Within two days, the squealing noise recurred. He took the vehicle back to the dealer and new rotors were installed in the rear. After a week, both the front and rear brakes began making a squealing noise. He called the dealer and was told that they could not repair it again because it had not been authorized by the manufacturer. He had not spoken with the manufacturer to-date. The vehicle had not been repaired at the time of the complaint. The current mileage was approximately 6,200. The failure mileage was 2.