After starting the vehicle. I heard a hissing noise coming from the rear of the cabin. I looked in the rear view mirror and saw a large amount smoke rising from the box where the rear defroster power connects to the window. I immediately shut the vehicle off, got out and walked around the passenger side of the vehicle. As I approached the passenger rear door, the rear passenger window exploded with a Loud pop, shooting glass across the bed of the truck. I know there is currently a recall for this issue in Canada.