2023 Rivian R1S Driver Assist & ADAS Problems

1> What component or system failed or malfunctioned, and is it available for inspection upon request? * The sensors don't detect the object sometimes. There were 2 incidents when the car sensors did not detect the object a> In my office parking lot the rear sensors did not detect the fire hydrant and did not make the beep noise resulting in a collision. b> I was driving in my neighborhood; I was blinded by the sun and couldn't see the road ahead. Again, the sensors did not detect the car in front i ended up in a collision. 2> How was your safety or the safety of others put at risk? * I had a collision with another car parked by the curbside. Luckily no one was in the other car but both cars had severe damages. I had bruises on my left-hand forearm. 3> Has the problem been reproduced or confirmed by a dealer or independent service center? * When the first incident happened, I was not able to provide Rivian accurate date and time of the incident and the gear guard did not record the collision although it was supposed to record. So I went back to my office parking lot and i reproduced the problem 1 time after trying several attempts and shared the video with Rivian. I have had too many email exchanges with Rivian to help address the issue but they did not help. 4> Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? * When i reported the first-time issue first time, Rivian inspected the sensors on May 29th 2024 and they said there was no problem with the sensors. But it failed to detect the car in my street and hence i had this collision. I could not see anything as i got blinded by the Sun in the evening. I have a recording from the car's gear guard. 5>Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? * There were no warnings or messages during the incident. However, When it detects it applies the brake. But not this time.