← Latest briefing

Automotive

US opens defect probe into Comma.ai after two fatal collisions

Federal investigators are reviewing Comma.ai driver assist devices following five collisions, according to TechCrunch.

The short version

  • The National Highway Traffic Safety Administration's Office of Defects Investigation opened an inquiry into Comma.ai aftermarket driver assistance systems following five reported crashes.[TechCrunch]
  • The crashes resulted in three deaths and left up to 11 people injured, with some sustaining serious harm.[TechCrunch]
  • Investigators noted the devices allegedly failed to detect or react to stationary or slow vehicles in the same lane.[TechCrunch]
  • Regulators noted some incidents, including a fatal crash, may have involved modified third-party software forks.[TechCrunch]

Key facts

  • The National Highway Traffic Safety Administration's Office of Defects Investigation is probing Comma.ai driver assistance technology over five reported crashes.[TechCrunch]
  • Two of the reported crashes caused three deaths, and four crashes injured as many as 11 individuals.[TechCrunch]
  • The safety agency reported that the systems failed to identify or respond to slow or stopped vehicles in the same travel lane.[TechCrunch]
  • A February 2026 crash in Ascension Parish, Louisiana, involved a Toyota RAV4 running the FrogPilot software fork that struck an unoccupied police vehicle, killing two passengers.[TechCrunch]

What remains uncertain

  • Federal officials have not confirmed whether modified or forked software was definitively responsible for the crashes, noting only that some incidents may have involved modified versions.[TechCrunch]
  • The specific identity and circumstances of the second fatal crash could not be immediately determined from regulatory report numbers.[TechCrunch]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.