Component Malfunction: Emergency Braking system (EBS) engaged without warning systems alerting inside the car cockpit at a speed of 50 MPH on a high speed 4â lane street. The car would not move forward and disengage the EBS until the ignition was turned off and appeared to reset the car. The driver was able to drive to the next driveway and inspect the car and review the site on the street where the car suddenly engaged the EBS. There was no visible evidence of debris or obstacles in the path of travel. Safety: The sudden stop physically jolted the driver, causing muscle soreness for several days. There were no cars in the area at the time, if there had been, the car would have created a major accident due sudden stop in traffic and potential physical damage to the driver. The sudden stop did impact the drivers shoulders and back muscles for several days of soreness. Dealership confirmation / Inspection: The issue was reported to the dealership and the next day was driven to the dealership (at the request of the dealership service team). The dealership is currently inspecting the vehicle. No other inspections occurred outside the owners visual inspection of the wheel wheels and brakes immediately after the EBS incident Prior warning lights / related incidents: There was warning lamps that lasted for about a mile of driving approximately a week before this incident and the car sensors have suddenly gone off in the past without any cars in the vicinity. The car