I was driving my Tesla Cybertruck on the highway when I experienced unexpected steering movements from side to side. I attempted to maintain control of the vehicle and slow down. The vehicle ultimately left its intended path and collided with the median. I do not know the cause of the incident. At the time of the accident, I believe a Tesla driver-assistance feature may have been engaged, but I am requesting that Tesla review the vehicle data and logs to determine exactly what systems were active and whether any vehicle malfunction contributed to the event. The accident resulted in significant vehicle damage. I am submitting this report because I am concerned that a potential steering, vehicle control, or driver-assistance system issue may have contributed to the incident and I believe the event should be investigated.