NHTSA investigates comma.ai’s openpilot following fatal crashes
The US safety regulator has launched a formal probe into comma.ai’s aftermarket driver assistance devices following crashes that resulted in three deaths.

The National Highway Traffic Safety Administration (NHTSA) has opened a formal investigation into comma.ai’s aftermarket driver assistance devices. The action comes after five separate crashes where vehicles running the openpilot software plowed into stopped or slow-moving vehicles in their own lane.
Tragically, two of those accidents resulted in three fatalities. The federal probe covers an estimated 30,000 devices, specifically targeting comma three, comma 3X, and comma four models currently in use.
This represents the most significant regulatory hurdle for George Hotz’s startup since NHTSA previously pushed the company to cancel its first product back in 2016. The investigation highlights growing regulatory scrutiny over aftermarket semi-autonomous driving systems.
As advanced driver-assistance systems become more widespread globally, incidents like this underscore the critical importance of safety validations and driver oversight. The tech community and industry regulators are closely watching how this case unfolds.
The outcome of NHTSA’s investigation could set a major precedent for how aftermarket driver assistance technologies are regulated, tested, and held accountable in terms of road safety standards.



