The car started to move and accelerate with brake pressed. Accident prevention system did not activate itself. It did not display any warnings as it typically do during parking and being close to other cars. The car caused an accident with mild injuries to the driver of the other car, but could have hit a pedestrian or go to the intersection and involved with an accident with a car moving perpendicularly at a higher speed. I am waiting for an investigator from Volvo and Travelers Insurance. Prior to the accident the electronic display of the car started to malfunction. I have a video of the whole accident , but it is in mp4 format and thus i could not upload it. The dashboard camera's microphone picked some electromagnetic interference that increased as we got closer to the accident. Description of the accident: We pulled to a red light behind another car. After not moving for a few seconds, the car started to move on its own, accelerating and hitting the car in the front, continuing to move forward. I was able to put the shifter into the park, stopping it. The road conditions were good. Roads were dry. The sky were cloudy overhead. The vehicle is not drivable ( radiator leak ). The car behaved usually before the accident, except for some reason, for the first time, all the displays dimmed significantly ( it was hard to see anything, and I could not increase brightness ). The screens went back to normal brightness right before the accident. Also, the dashboard