comments A college student killed in a Tesla Cybertruck crash was trapped inside the vehicle as it burst into flames due to a design flaw involving its doors, a lawsuit has claimed. Krysta Michelle Tsukahara, 19, was one of three who died when the vehicle smashed into a tree at high speed in Piedmont, California, last November. Her parents have now launched legal action, alleging that Tesla, led by Elon Musk, knew about the design flaw for years but failed to fix it. Krysta, a second-year student at Savannah College of Art and Design, along with friends Soren Dixon, 19, who was driving, and Jack Nelson, 20, were all killed in the crash after the vehicle caught fire. A fourth passenger was injured but survived. Carl and Noelle Tsukahara first filed a lawsuit against the carmaker in April and have now amended it with a detailed 36-page wrongful death claim. According to the suit, Krysta initially suffered only minor injuries, but when the Cybertruck's battery ignited, she died from burns and smoke inhalation. The complaint highlights that the vehicle's battery-powered doors can fail if the power cuts out, and that Krysta was unable to escape because the manual release was too difficult to locate. Krysta Michelle Tsukahara, a second-year student at Savannah College of Art and Design, was one of three who died following the crash last November in Piedmont, California All three were recent graduates of Piedmont High School who had returned home for Thanksgiving break when the crash occurred Nelson, left, and Dixon, right, who were stars of the Piedmont HS Lacrosse team, both died in the collision The teenager 'suffered unimaginable pain and emotional distress' while trapped in the rear of the burning vehicle, the lawsuit states. Speaking to The New York Times, her father said his daughter's life could have been saved if it had been easier to exit the car. He told KTVU Fox 2: 'Krysta was a bright, kind, and accomplished young woman with her whole life ahead of her. 'We've had to endure not only the loss of our daughter, but the silence surrounding how this happened and why she couldn't get out. 'This company is worth a trillion dollars, how can you release a machine that's not safe in so many ways?' Family lawyer Roger Dreyer added: 'This lawsuit is about truth and accountability. Rescuer describes how he was unable to open Tesla doors as man and two children burned alive