Was slowly entering my garage when there was a sudden acceleration. Put on brake but not before my car went thru the back garage wall and fell about four feet down before hitting the patio floor. It traveled across the patio and went over some furniture on the deck. The air bag never went off. The transmission had been very temperamental before this happened. I was not injured but could have caused a real issue had I been in traffic. I love the car but I personally will not drive it again. It is a 2019 Lincoln Nautilus.