The contact owns a 2014 Chevrolet Volt. The contact stated that while operating the vehicle during an electrical storm the power would shut off causing the vehicle to become inoperable. On one occasion the power shut off causing the vehicle to roll into the rear of a second vehicle causing damage to the bumper. No injuries were reported and no police report was taken. The vehicle was taken to the local dealer who was unable to duplicate the failure and no repairs were performed. The manufacturer was also notified of the failure. The failure mileage was 46,000.