The glass panel of my 2021 Toyota RAV4 sunroof blew out, shattering explosively, sounded like a rifle shot going off, into hundreds of pieces of small bits of glass while traveling on a smooth interstate highway with no other vehicles in close proximity. If the interior solid panel had not been closed, I would have been showered with all the small glass particles while traveling at 65 mph. I have not been able to reproduce the shattering of the glass. I did not go to the dealer because there is hardly anything left to examine. I have read the failure of Toyota sunroofs have been reported on other models previously. The damaged sunroof has only been examined by a body shop to do an estimate of the cost of the repair. There was no warning, or symptoms of the impending failure of the glass. The vehicle only has about 22, 500 miles of use.