Sunroof spontaneously exploded pouring glass all over in vehicle. I was alone on the freeway and there was no stone thrown that would have broken glass sunroof. Schlossmann dealer was disappointing in that they ran from any responsibility without even investigating fact that window partly blew upwards when it exploded. Sunroof has been replaced and is not available for inspection. There was no warning and I will always keep my sun shield barrier closed to protect me from future dangerous glass from raining down on me. Thankfully most of the glass blew outwards when this happened.