NHTSA Complaint #11439594 — 2017 GMC YUKON

My husband and I were driving down the freeway with our three children when without any warning, we heard a loud explosion and what felt like something hit our vehicle. There were no other cars near by. When we pulled off the freeway into a gas station to look at the vehicle the sunroof had a huge hole in the center. The remaining class attached to the vehicle was all shattered. There was shattered class on the closed shade. We didn't know what happened. It was very traumatizing. We thought someone threw something at us or something had fallen on the vehicle. If the sun shade wasn't closed, glass would have entered the vehicle and could have caused injury to us or our children in the back seats.