A fire spontaneously ignited while the vehicle was turned off and parked in the owner's garage. The fire apparently started in the vehicle's infotainment system. The fire melted all electrical components of the infotainment system and spread throughout the vehicle to the driver and front passenger seats and the front console and dash of the car. Large amounts of soot and debris were deposited throughout the interior of the vehicle. Fortunately, no one was present in the vehicle during the explosion and fire. However, our family was inside the house attached to the garage where the vehicle explosion/fire took place. I immediately contacted the Fire Department when I discovered the fire, and they quickly disconnected the battery and moved the vehicle from the garage. The vehicle was towed to the INFINITI dealership on Burnet Road in Austin, TX where the vehicle is currently located. My insurance carrier, Progressive, inspected the vehicle and determined it to be a total loss. I contacted the INFINITI corporate investigations team in order to provide them an opportunity to inspect the vehicle and determine the cause of the incident. This representative shirked INFINITI's responsibility for the fire and stated it would take 7 to 9 weeks before an INFINITI representative would inspect the vehicle. I deeply want to learn the root cause of this incident to prevent it from happening again. I am angered and saddened by INFINITI's lack of responsibility or care for this grave danger