As I was driving my Genesis G70 on the highway last week in heavy traffic, without any warning, the sunroof exploded. It made a very loud noise and scared the hell out of me. Luckily I maintained control of the vehicle. The sunroof was closed at the time, but the violent buffeting of the sunshade let me know that there was no longer any glass above it. It was a mild 50 degree day, with no snow or ice on the ground or on the vehicles around me. I hadn't hit a pothole or anything like that, and I hadn't driven under any overpass. Nothing came through the sunshade, other than broken glass when I opened it to confirm the failure. I was able to pull over at a rest stop in the next mile or so, and inspect the vehicle. I also took pictures of what was left of the sunroof. It was all shattered and cracked, and about half the glass, from the middle section, was gone. It must have pelted the cars behind me on the highway with glass fragments. I had to remove the remaining broken glass that I thought would likely fly off as I drove home, as well as the glass that had fallen into the interior, and put it in the trunk until I got home. I called Genesis Customer Care from the roadside and told them what had just happened. They have opened a case number, but six days later I still don't know what they plan to do about it. The day after it occurred I also called my insurance agent and my local dealer where I bought the car and told them about it. I'm waiting to find out when I can get the sunroof replaced on my daily driver, and if it will be paid for, along with the rental or loaner car that I'll need while it's in the shop. Neither the dealer or Genesis have asked to see the car or the pictures I took. After doing some research, it seems that sudden failures ("explosions") of the sunroof on Hyundai (and now Genesis) vehicles is not that uncommon. This is a dangerous failure as it could cause the driver to lose control, as well as hitting other cars on the road with glass.
NHTSA ODI 11511355