I am reporting a serious safety incident involving my 2026 Tesla Model Y while using Full Self-Driving (Supervised). While my vehicle was making a left turn with FSD engaged, the system unexpectedly disengaged midway through the maneuver. Instead of completing the left turn, the vehicle continued traveling straight toward a parked car. I immediately attempted to take control and correct the vehicle's direction, but there was insufficient time to avoid the collision. I received no apparent advance warning before the disengagement. Additionally, the forward collision warning and automatic emergency braking systems did not appear to activate or intervene before impact. The collision caused significant damage to the front passenger-side bumper of my Tesla, requiring the vehicle to be towed. The vehicle subsequently underwent repairs, leaving me without transportation for approximately one month. I had been using Tesla's FSD system regularly for several months before this incident. I reported the incident to Tesla and contacted its FSD malfunction team, but I have not received a response, investigation findings, or an explanation regarding the unexpected disengagement and apparent lack of collision avoidance intervention. I am concerned that FSD may unexpectedly disengage during an active turning maneuver without sufficient advance warning or time for the driver to react. The apparent lack of collision warning or automatic emergency braking intervention further raises concern