Brake Sensor problems of the 2020 Toyota Corolla

We bought the car on 07-29-19 and on 08-04-19 while driving home from maryland the car sensor lights started flashing after only 250 miles on the car. The flashing lights were for brakes and parking brake, lane departure and assist, back up and front camera, check engine, tire pressure, head lights, and rsa malfunctions. Basically the entire safety system of the car malfunctioned while I was driving. This happened on five different occasions while driving it. 7-29-19, 8-2, 5, 9-19 and the car was in motion each time while on a highway. I had it to the dealer twice and they are still working on it. The first time they said the car needed to be reprogrammed and they couldn't duplicate the problem and the second time the service manager is claiming it is a wire which I find it difficult to believe since there are multiple codes and I don't think they all go through one wire. Our family does not feel comfortable driving the car when all of these lights are flashing and not knowing if the car is safe to drive and if the safety features in the car will operate properly. I have video and pictures of the codes that were flashing if needed. I could not upload them due to the size of the files.