The National Transportation Safety Board (NTSB) confirmed that the driver involved in the fatal Tesla crash in Katy, Texas, last June had pressed the accelerator pedal fully to 100%, overriding the vehicle's Full Self-Driving (FSD) system. The Tesla was recorded traveling over 70 miles per hour on a residential street with a 30 mph speed limit before it veered off the road and struck a house, resulting in the death of 76-year-old Martha Avila. The preliminary report reinforces Tesla's initial statement that its advanced driver assistance technology was not responsible for the incident.

Michael Butler, the 44-year-old driver, has faced manslaughter charges and a lawsuit brought by the victim’s family for negligence. Authorities revealed that Butler admitted to passing out at the wheel and relying on the FSD system during the crash. Investigators also found internet searches by Butler expressing frustration with Tesla's software, including terms like "Tesla FSD not aggressive enough 2026," suggesting dissatisfaction with its cautious driving behavior.

Tesla CEO Elon Musk publicly refuted claims that the FSD system contributed to the accident, emphasizing that the technology operates slowly in neighborhood environments and could not have caused a high-speed crash. The NTSB outlined that the crash occurred in clear weather and daylight with dry road conditions, indicating that external factors like weather or road surface were unlikely contributors.

The incident is concurrently under review by the National Highway Traffic Safety Administration, alongside the NTSB’s investigation. The case highlights ongoing concerns about the limitations and user responsibility associated with driver assistance technologies, underlining the necessity for drivers to remain attentive and ready to intervene at all times despite the increased autonomy offered by current FSD systems.