The glass of the sunroof spontaneously shattered while driving down the highway. It made an explosion sound and dropped shards of glass all over myself and my child. I am in the process of finding replacement glass for the vehicle. It is less than a year old, and the dealer does not have replacement parts nor does it know when they can get one. There were no warnings before this happened. The vehicle has never had any damage and is stored in an interior garage. The damage happened at 55 degrees on a dry overcast day in Nashville, TN.