The truck was sitting at home in the driveway (untouched) for 3 days. Suddenly smoke began to appear from under the hood and within minutes, the engine compartment burst into flames. Because of the fire, smoke and water damage, the vehicle was considered a total loss by the insurance company. The fire marshal advised that the fire started in the vicinity of the passenger side starter battery. It is thought the fire originated from the battery or the grid heater relay that is very near the passenger side battery. The fire also damaged a nearby RV that experienced smoke and heat damage. It was a very intense fire. There were no open recalls on this vehicle and no recent maintenance work performed.