NHTSA Complaint #11394520 — 2015 GMC SIERRA 1500

VEHICLE WAS STATIONARY ON THE STREET, PARKED. I ENTERED IT, AND TURNED ON MY FRONT AND REAR DEFROSTERS WITH THE SETTING ON "HI." I TURNED AROUND AND VERIFIED THAT MY VEHICLE HAD NOT BEEN HIT NOR WAS ANY DAMAGE AT ALL APPARENT TO ME. AT SOME POINT AS I SAT THERE WITH THE CAR IDLED AND THE HEATED AIR REACHING ITS MAXIMUM TEMPERATURE, I BEGAN TO SMELL SOME FOUL SMELL IN THE CAB THAT I BELIEVED WAS EXHAUST ENTERING THE CABIN. I ROLLED DOWN THE WINDOW. AS I BRUSHED THE SNOW FROM THE FRONT AND BEGAN TO DRIVE AWAY, I HEARD A NOISE THAT I BELIEVED WAS THE SNOW FALLING FROM THE ROOF. HOWEVER, AS I ROLLED AWAY, I NOTICED A LOUDER-THAN-NORMAL CABIN. UPON LOOKING BEHIND ME, I NOTICED THE REAR RIGHT WINDOW WITHIN THE SLIDING REAR CABIN WINDOW HAD BLOWN OUT. UPON INSPECTING THE AREA, I NOTICED THAT NO SNOW OR WATER WAS PRESENT INSIDE. GIVEN THAT WE HAD RECEIVED A LOT OF SNOW THE PREVIOUS EVENING THROUGH THE MORNING, HAD THE DAMAGE OCCURRED THROUGHOUT THE EVENING OR EARLY MORNING, THERE WOULD'VE BEEN MOISTURE PRESENT.