2021 HONDA INSIGHT Forward Collision Avoidance Adaptive Cruise Control Problems

I previously reported this issue to NHTSA and was given the case number [XXX]. Here is my recent letter to Honda. RE: Case #[XXX] (I was informed that this case was closed) Although I did not agree that the adaptive cruise control issue was resolved, Honda closed the referenced case. I am writing to confirm that the issue is not resolved. I rarely drive the Insight but did so yesterday on a two lanes in each direction, limited access highway. Here are my experiences: On multiple occasions while driving at 60 mph in the right hand lane with ACC controlling the distance to the vehicle in front of me, the vehicle in front moved to the exit lane clearing the path in front of me. As the exiting vehicle slowed in the exit lane, the ACC applied the Insight's brakes, quickly reducing my speed to 30 mph in the driving...

The recent NHTSA disclosure of issues with Honda's driver-assistance technologies causes me to write about the troubling performance of adaptive cruise control on my 2021 Insight. When following another vehicle on controlled access highways, the system works fine. However if the vehicle in front enters an exit lane and slows, my car is slowed to the point that the brakes are fully applied, causing vehicles behind me slam on their brakes or swerve to avoid rear-ending me. The ACC does not "let go" of the car in front of me.