2021 Toyota Rav4 Collision Avoidance Problems

Driving with cruise control on, on a 2 lane road with a left turn lane. Approx 40MPH. Vehicle ahead of me by 4-5 car lengths got into left lane. When I has about 10 feet from him my brakes automatically slammed on, he was in his lane, I was in my lane. This has happened 4-5 times since I've had the veh. I now stay aware that this might happen and stay ready to cancel the cruise. This could be very dangerous if someone was right behind me. Dealer test drove and ran scan no problem found. Which as expected, if it doesn't happen when they test drive there's not a lot they can do. I understand this.

While traveling on highway with adaptive cruise control engaged and maximum following distance selected, adaptive cruise control applies excessive braking force than necessary when vehicle in front exits highway. Safety concern because following vehicles must abruptly apply brakes. Dealership or police have not inspected vehicle. No visual or audio warnings. Internet search reveals numerous, similar complaints.

Does not maintain cruse control speed that I set when traffic becomes heavier around the car for example….cruise control stops working and car slows down as vehicles are passing my car, or are driving in front of me or in back of me. It does not like traffic near by. If there’s no traffic it works and maintains the set speed.