WHILE DRIVING ON THE EXPRESSWAY ALL OF A SUDDEN GLASS IN MY SUNROOF JUST EXPLODED. MADE QUITE A NOISE AND STARTLED ME. THERE WERE NO TRUCKS IN FRONT OF ME AND NO OVER PASSES. THE GLASS BLEW OUT ALL OVER ME AND THE REST OF THE VEHICLE. WHEN CLEANING IT UP I COULD NOT FIND ANY EVIDENCE OF ANY THING THAT COULD HAVE HIT IT TO MAKE IT SHATTER. I FEEL AS THOUGH I WAS VERY LUCKY IN THIS CASE AS I DID NOT GET ANY GLASS IN MY EYES AND JUST A VERY SMALL CUT ON MY HAND. I WAS DRIVING ON THE EXPRESSWAY AT THE SPEED LIMIT WHICH IS 70 MPH AND CONSIDER MYSELF VERY LUCKY THAT I WAS NOT INVOLVED IN AN ACCIDENT AS A RESULT OF IT. I CALLED NISSAN AND THEY PRETTY MUCH JUST BLEW ME OFF, I THINK THAT IF THIS IS SOMETHING THAT IS HAPPENING THAT SOMETHING SHOULD BE DONE TO CORRECT IT IMMEDIATELY.