NHTSA Complaint #11519349 — 2019 NISSAN ALTIMA

Please note that I have my car regularly inspected for oil changes and maintenance. The adaptive cruise control stopped working August 2022. The car displays "malfunction" on the dashboard. This was inconvenient and at first intermittent, but I did not think it was putting any persons safety at risk. I went to a local Nissan dealership in NJ and they stated it would cost $600 to replace, but no safety issues. Therefore I did not get this fixed at the time. On March 14 2023, I was merging onto a highway in daylight around 4pm. It had started flurrying, but no changes in visibility. There was no car immediately in front of me. The collision warning suddenly came on and the emergency brakes were activated while attempting to accelerate onto a 65 mph highway in NJ. It was extremely startling. It certainly could have caused an accident, especially when vehicles are accelerating to merge onto a highway. I was fortunate that there was no car immediately behind me. On April 26 and 27 2023, the emergency brake was activated again due to a collision warning while in a parking garage. The only correlation I can think that ties these occurrences is when driving from a shaded to sunny location. All three times it also occurred during acceleration. This new problem is quite concerning and dangerous.