On July 24th, I experienced sudden unexpected acceleration with my 2021 Toyota Rav4 Prime XSE (41,600 miles) while driving in the electric mode. I was lining myself up to reverse into my garage and as I paused to switch gears to reverse, the car suddenly accelerated full-speed towards my neighbor's house. I slammed the brakes but that had little effect. The car slammed into the house, through the garage door and my car was only stopped when hitting an SUV parked in the garage, pushing it forward about 2 feet. No air bags were deployed, the collision detection system on the vehicle did not seem to work and tire marks from my braking were visible from the middle of the road. I have found a number of very similar incidents with Toyota cars described online. Cars were often turning into parking spaces at slow speeds and ended up accelerating into lamp posts or buildings. If there hadn't been a car parked in the garage, I can't imagine what might have happened as the car was probably going 35 mph+ upon impact. There were no warning lights and the collision shop informed me that there were no diagnostic codes when they downloaded the computer.