Comma.ai Faces Federal Investigation After Five Crashes, Three Deaths Linked to Hands-Off Driving Tech
NHTSA’s ODI opened the probe in September 2026 after reports that Comma.ai systems failed to react to slow or stopped vehicles. One fatal Louisiana crash involved FrogPilot, a modified openpilot build, and killed two passengers.
Comma.ai, the aftermarket driver assistance startup founded by George Hotz, is under federal investigation following five reported crashes involving its hands-off driving technology, two of which were fatal and together resulted in three deaths.
The National Highway Traffic Safety Administration’s Office of Defects Investigation (ODI) announced the probe in September 2026, citing reports that Comma.ai devices failed to detect or respond to slow or stopped vehicles in the same lane. Across four of the crashes, as many as 11 people were injured, some seriously.
At least one of the fatal crashes involved a “forked” or modified version of Comma.ai’s software rather than the company’s official release. One confirmed fatal incident occurred in February 2026 in Ascension Parish, Louisiana, where a 2022 Toyota RAV4 running FrogPilot — a third-party modification of Comma.ai’s open-source “openpilot” software — struck a stopped, marked Gonzales Police Department vehicle with its emergency lights activated. Louisiana State Police reported that two rear-seat passengers of the Toyota died. The second fatal crash could not be immediately identified from ODI report numbers.
Founded in 2015, Comma.ai makes devices that install on modern vehicles and use openpilot to control Adaptive Cruise Control and Automated Lane Centering systems. The company’s own website acknowledges that openpilot’s performance can be affected by stationary vehicles in the same lane, and that the system is designed to limit the amount of deceleration it can produce when abrupt braking is required.
Comma.ai could not be reached for comment. Hotz, who stepped back from the company’s day-to-day operations in 2022, did not respond to a request for comment.
The investigation adds Comma.ai to a list of companies facing scrutiny over advanced driver assistance systems and their handling of stationary objects — Tesla and Ford have faced similar probes in the past.