I was in a parking lot at the time driving very slowly to pick a spot. When I went to turn right into the spot my car accelerated at an alarming speed. I had not control over it as it kept turning. It hit the car parked in front of my space pushing it and went on to hit the car parked to the right damaging both the front left and right sides of my vehicle and the 2 parked cars before coming to a stop. Fortunately it was 9am and not very crowded, there were no passengers in both vehicles and no one walking in between or by the cars which could have been tragic. I was wearing a seatbelt. The police were called and completed a report. The Subaru dealership was called and Subaru of America was called. The car was inspected by a Bosch.-EAA representative for Subaru on 8/4/2021. I have not heard back from Subaru so far although I was told it could take several weeks. There were no warning lights prior to the incident but afterwards there were several warning lights on. A few months before I got into my car and the radio was blaring and constantly switching channels and I was not able to turn the radio off. When I got home and turned off the car and turned the ignition back on 30 minutes later it had stopped. We notified the incident to Subaru at the next oil change. I immediately notified USSA car insurance and filed a claim. I have not had the damages assessed for repair because I have to wait for the inspection results from Subaru. I felt it was important to document this incide