I PRE-STARTED MY TRUCK THIS MORNING 10/19 W/ AUTOSTART ON FOB. THE TRUCK WAS STATIONARY. I LOADED BOTH MY 1 YR OLD AND MY 3 YEAR OLD INTO THEIR CAR SEAT AND WENT BACK INTO HOUSE TO GRAB MY RAINCOAT. WHEN I RETURNED THE EXTERIOR NEAR BOTTOM LEFT REAR GLASS WAS SIGNIFICANTLY SMOKING/SMOLDERING. 2 SECONDS LATER A SMALL 2-3' FLAME STARTED IN THE SAME AREA ON THE WEATHERSTRIP. I TURNED MY TRUCK OFF. I HAPPENED TO HAVE MY PHONE IN HAND AND VIDEO TAPED THE MOMENTS FOLLOWING. THE FLAME SELF-EXTINGUISHED AND SHORTLY AFTER CAKE A LOUD BANG. IN LINE WITH THE SOUND OF A SMALL CALIBER HANDGUN. THE SOUND WAS THE BACK GLASS EXPLODING. LUCKILY THE TINT KEPT THE GLASS SHEET INTACT. THIS IS THE 2ND TIME THIS HAS HAPPENED. 1ST WITH NO KIDS IN THE CAR ON 12/15. FIRE WAS NO LESS THAN 12' FROM MY SONS HEAD, HAD THE POWER NOT BEEN SECURED THERE WOULD HAVE BEEN A SIGNIFICANT CHANCE OF RUNNING UP THE COMBUSTIBLE WEATHER-STRIP AND POTENTIALLY IGNITING THE VEHICLE CABIN. I FEEL I AM ABLE TO MAKE THIS CLAIM BASED ON THE FACT I AM EMPLOYED AS A CAREER MUNICIPAL FIREFIGHTER. THIS IS UNNACEPTABLE FOR ANY TRUCK ESPECIALLY ONE WITH 44,500 MILES. THE ONLY WAY FORD WILL INVESTIGATE IS FOR ME TO PAY FOR THE COST OF DIAGNOSTIC. NOT COVERED UNDER WARRANTY.