The contact owns a 2018 Toyota Rav4. The contact stated that while at a stop at a traffic light, the vehicle independently accelerated and rear-ended another vehicle. The engine revved during the acceleration while the brake pedal was depressed. The vehicle continued to accelerate for 20 feet. No warning lights illuminated. No air bags deployed. No injuries were sustained, and medical attention was not sought. A police report was not filed. The contact stated that the failure had reoccurred while at a stop, and the vehicle traveled approximately 20 feet before coming to a complete stop while forcefully depressing the brake pedal. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,368.