The contact owns a 2020 Hyundai Tucson. The contact stated that while driving approximately 65 mph, the instrument dashboard display suddenly blacked out and the steering wheel malfunctioned causing the driver to lose control of the vehicle and crash down an embankment into a tree. The contact mentioned that when she attempts to exit because the vehicle was on the edge of an embankment when she exits the vehicle she fell into a tree then climbed up to the roadway where she was found unconscious. During the incident, the driver sustained a fractured left shoulder and head trauma. The contact currently was being seen by a Neurologist for her head trauma. A police report was taken at the scene and the vehicle was towed away. It took over an hour for the vehicle to be retrieved from the embankment. The cause of the failure was not determined. Prior to the crash, the vehicle had been serviced on multiple occasions for exhibiting a loss of power and hesitation to accelerate. The vehicle was taken to the local dealer who replaced the transmission and reprogrammed the computer software but the failures continued to occur. The manufacturer was notified of the failures. The failure mileage was 38,000.