I USED MY REMOTE START, FROM THE KEY FOB, WHILE I WENT INSIDE THE STORE. I CAME OUT OF THE STORE AND HAD HEAVY SMOKE COMING FROM THE REAR WINDOWS AND DEFROSTER AREA. IT SMELLED OF A CAR FIRE. I IMMEDIATELY GOT INTO THE TRUCK AND TURNED IT OFF. I NOTICED THE SMOKE DISSIPATED AND I STARTED THE TRUCK TO GET HOME. THE DEFROSTER WAS LEFT OFF AND I THEN STARTED TO DRIVE OUT OF THE PARKING LOT. NOT EVEN 30SECONDS LATER THE WINDOW THAT HAD SMOKE COMING FROM SHATTERED. IT IS IN MY LINE OF SIGHT.