The NHTSA has in recent years formed Special Crash Investigation (SCI) teams to look into Tesla crashes related to the vehicle's Autopilot system. The agency has previously said it had opened 28 special investigations into Tesla crashes, with 24 pending. Why It Matters: Tesla's recent crashes have sparked safety concerns. The Elon Musk-led company's vehicle safety report for the first quarter of 2021 shows that the average distance per accident while driving on Autopilot has actually declined year-over-year.