The Lethal Cost of 'Chill' Driving

The National Highway Traffic Safety Administration’s (NHTSA) Office of Defects Investigation (ODI) has launched a federal probe into Comma.ai following five reported crashes, as TechCrunch first reported. Two of those crashes resulted in three deaths. According to TechCrunch, the crashes involved the startup's aftermarket driver assistance technology failing to detect or respond to vehicles that were stopped or moving slowly in the same lane.

Founded in 2015 by George Hotz, Comma.ai markets its "openpilot" software and hardware as a way to "make driving chill," offering capabilities similar to GM Super Cruise and Tesla Autopilot. However, the gap between enthusiast tinkering and safety validation is now stark. TechCrunch reports that the ODI found some crashes—including at least one fatality—may have involved "forked" or modified versions of the software.

In February 2026, one such crash took place in Ascension Parish, Louisiana. Louisiana State Police reported that a 2022 Toyota RAV4 running FrogPilot, a third-party fork of openpilot, struck an unoccupied, fully marked Gonzales Police Department unit that had its emergency lights activated. Two passengers in the rear of the Toyota died.

While Comma.ai warns users to remain capable of retaking manual control and notes that openpilot's performance can be affected by stationary vehicles, the real-world consequences of these limitations are proving deadly. Across four of the reported crashes, up to 11 people were injured.

Hotz, who stepped away from daily operations in 2022, and Comma.ai have not yet responded to requests for comment. The investigation underscores a systemic risk: when safety-critical systems are open to third-party modification, the distance between a software "fork" and a fatal collision is dangerously short.