The contact owns a 2020 Kia Rio. The contact stated that he was a former service technician and that while driving and stopping at a stoplight, the traffic light turned green and the contact depressed the accelerator pedal however, the vehicle idled and stalled for a few seconds before inadvertently accelerating and crashing into the vehicle in front. The contact stated that the failure recurred intermittently on several occasions. The contact attempted to take the vehicle to the local dealer to be inspected however, the dealer was unable to inspect the vehicle for a month. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was 41,714.