DANGER!! While on the freeway I heard a very loud pop, like a gun shot sound or tire exploding. I turned the radio off and started looking at gauges waiting to see what had happened... then I noticed it sounded like the sunroof was open, so I tried hitting the close button & nothing so I opened it to try to re-close & all the shattered glass started falling on me!! The glass cut my arms and face... glass was everywhere!! Very startling while diving 65!! There is definitely a problem considering now finding out this has happened to many other people! DANGEROUS!!!