NHTSA investigates comma.ai after five crashes, three deaths

The National Highway Traffic Safety Administration (NHTSA) have opened an investigation into comma.ai. The investigation comes after several crashes, some of them fatal, in which vehicles equipped with the aftermarket driver assistance system reportedly struck stopped or slow-moving traffic in their lane.

What is comma.ai?

Comma.ai sells devices that drivers can add to compatible vehicles to provide sustained control of speed and steering. Its openpilot software uses cameras on the device alongside the vehicle’s existing sensors. Unlike a system installed by the automaker, the hardware is sold directly to consumers for installation in their own cars.

Comma.ai describes openpilot as capable of driving for extended periods without intervention, while stating that drivers must remain alert and prepared to take over at all times.

What is NHTSA investigating?

The NHTSA says that in all five crashes under review, vehicles fitted with comma.ai devices struck stopped or slow-moving vehicles ahead in the same lane.

Two crashes resulted in three deaths, while four caused injuries to 11 other people.

Investigators have so far confirmed the system was powered on or engaged in multiple incidents, but is still gathering data to determine its status in each crash. The agency is also investigating whether the system detected the vehicles ahead and how it responded before impact. 

The investigation covers the comma three, comma 3X and comma four devices, as well as openpilot. NHTSA estimates the affected population at 30,000 vehicles. Investigators will look at how the system handles stopped vehicles and other hazards in the travel lane, along with the safeguards meant to keep drivers attentive and ready to intervene.

The agency will also look at incidents involving modified versions of openpilot, known as forks.

You can read the full NHTSA ODI resume below.