2020 Toyota Yaris

The vehicle do unnecessary abrupt breaking in the highway when the road are reduced due to reparation. In addition in two times, when I tried to park to my garage in the back of other vehicle the breaking system related to collision is activate. This area of my garage is an inclined drive way zone and I put the vehicle back to other. In occasions when I go out to my residence, I need to go thru a control system that content a electrical barrier (electric arm), and around 4 or 5 times, when I close to this area the car did a hard stop, and the collision red light turned on with a beep sound, the same indication when the car activate the breaking system in the highway and when I try to park in some times to my garage. The most critical issue is when hard stooping in the highway due to in these times the other vehicles claimed me why reason I stopping without any reason, and them are very close to collision the back of my car. When this happen the sound of the tires of my car can be ear clearly the hard stopping. I very disappointment and very scare this defect was and will be in danger my life, due to the dealer retailer that I buy my car don't found any issue after my notification and I had no choice open a case directly with the Toyota, and now the dealer retailer will do an a correct inspection but I need to pay for this, is incredible due to my 2020 car only have 18,000 used miles.