Panoramic sunroof. First one is fine, back one exploded. All around the edges is a very distinct crack in a connected line. There was minimal traffic, and I was the only other vehicle on the interstate with a good 4 car length between me and the next car which was 2 lanes over. I didn-??t see or hear anything other than the -??gunshot-?? sounding explosion. No wind or hail or anything, skies were clear, I was going about 60 on the interstate. It freaked me out. Luckily, I did not swerve or change my driving (slam on brakes etc), but with another person driving, this could have caused an accident. Toyota claims it was a piece of debris or rock that hit it so they say it is not under warranty. $14k repair price which is almost a quarter of what I am paying for the vehicle. Waiting to see if my insurance covers it.

- San Antonio , TX, USA