Tl* the contact owns a 2016 kia optima. the contact stated that all four window regulators failed. the contact was unable to get the windows to move upward and close. the contact took the vehicle to kia delray (located at 2255 s federal hwy, delray beach, fl 33483, 561-637-5500) who stated that the window regulators failed for all four windows and needed to be replaced. the vehicle had not been repaired. the manufacturer was made aware of the failure and provided authorization to repair the rear windows. the manufacturer was contacted and provided case number: 13306734. the approximate failure mileage was 72,000.