— component or system failed or malfunctioned — Front Subframe Structure (Part Number 1044521-00-J) — the part failed with my car at approximately 55,000 miles. When it failed, the car didn’t alert any problem and continue to drive the full-self-driving mode. I only noticed that it was very dangerous the next day when I tried to take my car out of the garage. — the problem was diagnosed by Tesla Service center which I had to toll my car to them because it was unsafe to drive. — The vehicle or component was not inspected by police or insurance, because there was no accident. — There was no warning lamps or indication other than noise.