My Subaru Solterra EV was parked in the driveway of an Airbnb in Virginia. We were about to depart to return home. Vehicle was turned on and driver commenced to back out of the driveway, however rear safety warning activated as car neared a bush. Driver stopped vehicle, then placed in Drive in order to pull forward a few feet to negotiate putting the car in reverse to leave the driveway. The car then lurched forward with great force and collided with the corner of the house we had been staying in, causing significant damage. Two concerns arise: 1. Why did the car lurch forward with great force to begin with? 2. Why didnt the automatic emergency braking system not activate? I shiver when I think what might have happened if a person had been standing in front of the car. The car is now being repaired by a shop selected by my insurance company. Once completed it needs to be thoroughly tested to determine if this could be an ongoing problem. I theorize a software glitch my be responsible.