Adaptive Cruise Control problems of the 2023 Toyota Corolla

Since purchasing this vehicle new, I've had several occasions (not on just the most recent date noted in this case) where the car will issue a false pre-collision alert and apply the brakes for about 1 second while using the adaptive cruise control. However, this happens while me and the drivers around me are driving "normally" and there are no vehicles in front of me nor attempting to merge into my lane. There does not seem to be a particular set of conditions that cause this false alert and they happen randomly, but it is startling when they happen since there is no observable reason for it. Fortunately, there has not been anyone tail-gating me when this happens because this could easily cause a rear-end collision if someone were following too close. I've notified my local dealer about this issue more than once, but they cannot find anything wrong.

The adaptive cruise control and forward collision warning do not work in the rain. I have had 2 instances when using acc where the vehicle would continue the set speed even though vehicles in front of me have slowed down. I have had to manually brake to avoid rear ending the vehicle in front of me. I have had 1 instance where a vehicle merged into my lane and barely missed the front of my vehicle although my vehicle continued at the set speed and I came within what appeared to be inches of that vehicle and had to manually brake to avoid a collision. This always happens when cruising on the interstate in the rain. . . System works fine when dry. This is apparently an issue with all Corollas or Toyota safety sense 3 because the dealer told me they have had several complaints about this.