While driving on the freeway the autopilot kept turning on, I would immediately turn the autopilot off. The autopilot came on and turned my steering wheel to the left into the highway barrier, thus causing me to take a corrective action. The weather on the freeway way wet and traffic was moderate. The monitor displayed autopilot, which I turned off many during my trip as I am not comfortable with autopilot . I have an insurance claim as there was extensive damage to my car.