WENT TO WARM UP MY TRUCK THIS MORNING AS IT WAS 36 DEGREES AND LIGHT FROST ON THE VEHICLE. TURNED ON THE IGNITION ALONG WITH THE SEAT WARMER FOR DRIVERS SIDE AND DEFROST. WENT INSIDE AND AS I WATCHED THE TRUCK THERE WAS A SMALL SPARK/FLAME ON THE LEFT BOTTOM CORNER OF THE PASSENGER SIDE WINDOW. HEARD A LOUD POP AND RAN OUT TO THE TRUCK TO FIND THAT THE PORTION OF GLASS HAD SHATTERED, STILL INTACT. WILL TAKE IT TO THE DEALER THIS AFTERNOON. *TR UPDATED 11/07/12*LJ