NHTSA Complaint #11622099 — 2023 PORSCHE MACAN

Brakes slammed on and hard left turn initiated. Collision warning light flashed. There was nothing in front of me. Action caused an artery to tear in my lung. Hospitalized with life threating injury. Car had recently received 1st year service. Called dealer service manager to report failure, he said the car could not do this. Car has not been inspected at this time. Lawyer advised not to drive car, but also said his team had no equipment to review failure, needed to be taken to dealer who would probably not work with him. There are many of these failures on the internet, Also have friends how have had similar issues multiple times. How do i proceed?