The backup warning system did not work when I backed out of a driveway on a dark night. I knew there was a black car (sedan I believe) parked along the curb across from the driveway, and could partly see it in the backup camera when the tail lights would turn on (i.e., when I stepped off the drive pedal), but was unable to tell exactly how close I was to the car. There were no beeps from my car to warn me. My car stopped abruptly as the edge of my trunk lid hit what I guess was the corner of the other car. All damage appears to have been to my car - a dent in the trunk lid. I reported all of this to Tesla through their service app, and received a list of places from which I can get an estimate to repair the damage, but never received an explanation from them of their evaluation of the car's records I want to point out that I believe my Tesla includes all camera sensors - a change they apparently made over the summer. My car was ordered in June 2021 for September delivery.