Dashboard Failed problems of the 2019 Toyota Highlander

2019 Highlander xle loses power, unable to accelerate, & jerks and stalls in traffic. Bought at 200 miles, certified preowned. It is a nightmare vehicle. Accelerator has been touchy and jumpy at times, intermittently at slow speeds. First time it stalled it started to lose power put -put and chug like jerking and all dash and electrical on dash went out, unable to accelerate, then stalled out in road, unable to steer or control vehicle. This occurrence was after a longer period of driving. Second time it stalled out began to lose power, putter and chug, unable to accelerate applying gas pedal, getting no gas, vehicle dies out, unable to steer or control vehicle. This occurrence was after a longer period of driving. Third time was yesterday 8-8-19. Left work and about 5-7 minutes into my drive, started hesitating, losing all dash and electrical power and will not accelerate when gas pedal applied, then stalls out, unable to control the steering wheel again! almost got hit this time, man behind me coming fast and had to swerve into lane over to miss me. This car is going to kill me or someone by causing an accident if they do not get it fixed right. After the second stall it was towed into dealership and they were not sure but said fuel pressure was reading 22 and was supposed to be in the mid to high 50's. They replaced the fuel pump and it drove ok for a little while but I noticed the average fuel mileage going down from an approx in city 19. 1--20 to 17. 1-17. 3. Has never been so low so obviously the stalling and the replacing or the fuel pump are not the real issue. Fuel economy going down since replacement of the fuel pump and now another dangerous stalling issue. Car is at Toyota dealer now. They need to dive much deeper & resolve this very dangerous safety issue! I bought this car to feel safe and have reliable transportation and have neither. It really scares me.