TL* THE CONTACT OWNS A 2006 LEXUS IS 250. THE CONTACT STATED THAT THE ENTIRE DASHBOARD AND FOUR DOOR PANELS HAD MELTED IN SOME AREAS AND EXHIBITED SEVERAL CRACKS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR INSPECTION. THE TECHNICIAN INFORMED THE CONTACT THAT THE EXCESSIVE HOT WEATHER CAUSED THE DEFECT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE FAILURE MILEAGE WAS UNAVAILABLE.