Lane Keep Steering Assist problems of the 2023 Tesla Model Y

The contact owns a 2023 Tesla Model Y. The contact stated while driving 70 mph with adaptive cruise control and lane keep assist activated, the vehicle experienced phantom braking and decelerated to 50 mph before releasing. The contact stated that he was overtaking an 18-wheeler at the time of the failure. The vehicle returned to normal functionality, but the failure had since become a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 450.