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automotiveDevelopingUpdated 4 h ago · since 27 Sept 2026

NHTSA opens preliminary investigation into Openpilot and its maker Comma.ai.

According to cnBeta, the U.S. NHTSA’s Office of Defects Investigation has opened a preliminary probe into Openpilot and its maker Comma.ai on September 21, following five crashes that involved Openpilot or its derivative software, with 3 dead and up to 11 injured. The investigation focuses on the system's failure to detect or respond to slow or stationary vehicles in the same lane; Openpilot is a retrofit driver-assistance system that supports roughly 350 models and is available for about $999 with hardware, and its software is open source on GitHub.

1 source1 country1 article1 independent outletsSource strength 22/100 ⓘComma.aiOpenpilotNHTSA
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Key facts

  1. 01On September 21, the NHTSA opened a preliminary investigation into Openpilot and Comma.ai.
  2. 02Five crashes involving Openpilot or its derivative software are under review, with 3 deaths and up to 11 injuries.
  3. 03Openpilot is a retrofit driver-assistance system compatible with about 350 models from Toyota, Honda, Hyundai and others, with hardware priced around $999.
  4. 04The system can be installed by users or run via a smartphone, and the software is open source on GitHub.

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