2023 Nissan Leaf

My front collision system will sporadically start flashing when there is nothing in front of me. One time a dealer was able to read a code saying that it overheated, and told me that was a known issue with no solution. It was 100F, but I have had the same issue at 35F. The dealership and corporate cannot tell me how the safety system will respond with this error, either disabling my crash prevention system or possibly automatically breaking for no reason. I have taken it to the dealership 4 times. One refused to even try to read the code as it was happening. Another read the code but refused to record it. The other times they kept the car for a total of 8 days and didn’t even look at the component. It seems like they know that this safety issue exists and have no plans to address it. They also refuse to answer my question about liability if it causes my car to automatically break and cause an accident. This has happened at speeds between 0 and 75 mph

I pulled into a parking spot and to ensure I stopped when I wanted to, I braked. The car accelerated, smashing into a building. I always drive in eco mode and generally use the e-pedal which was on at the time. I’m not sure if either or a combination of those may have been a factor in what happened. The car is available for inspection upon request. I was fine, but very shaken. The car is driveable, but the front bumper is mangled and the left blinker no longer works. The headlights are functional. The charger panel releases and I can pry it open, though it no longer pops up. No airbags were deployed. The car was going slow enough, there seems to be no damage to the building. I'm concerned what could happen when we drive into our garage or, worse, if there is a car or pedestrian in front of our car and rather than braking the car accelerates. I have seen several reports of similar experiences, though no resolutions or suggestions. I can imagine this being a one-time occurrence, but I am deeply concerned it is not. I've been at a loss in who and how this can be addressed. I have called several Nissan dealers. The service people that I spoke with were not optimistic about what they could discern and, more importantly, did not seem concerned. As a result, I called my long-time car mechanic who did some initial diagnostics, but they were inconclusive. There have been no other inspections. I have reported this to Nissan USA and have opened a case/claim. I don’t recall any warnings at the time. All recalls have been updated.