The National Highway Traffic Safety Administration (NHTSA) has launched an investigation into Comma.ai following two serious accidents involving vehicles equipped with its open-source driver assistance system. One incident resulted in a fatality in Ascension Parish, Louisiana, involving a Toyota RAV4, while another in Cameron, Missouri, caused an injury and involved a Honda Accord traveling at approximately 82 mph.
Comma.ai, founded by George Hotz, provides aftermarket hardware and the openpilot software platform. The company maintains that its products are intended for research and development, placing responsibility on users. Regarding the fatal incident, the firm informed regulators that the device utilized third-party or forked software, which complicates internal investigations.
The company has complied with the NHTSA Standing General Order, which mandates reporting for Level 2 ADAS systems, though it disputes the full applicability of these requirements to its specific model. Comma.ai previously faced federal scrutiny in 2016, leading to the cancellation of its Comma One product and a subsequent shift toward the current open-source strategy.
Legal proceedings related to these incidents included a civil lawsuit filed by Kevin McGinnis on January 23, 2026. The case was dismissed without prejudice in February 2026, allowing for the possibility of future refiling. The current investigation highlights ongoing regulatory challenges regarding liability when open-source driving software is modified by third parties.





