{ "body": "

The U.S. National Highway Traffic Safety Administration (NHTSA) has opened an investigation into the aftermarket autonomous driving system from comma.ai after multiple deaths and injuries were reported. According to Ars Technica, federal officials are aware of five crashes in which vehicles equipped with comma.ai devices struck slow or stopped vehicles, resulting in fatal and non‑fatal injuries.

Comma.ai, a California‑based company, sells hardware and software that can be installed in compatible vehicles to provide driver‑assist and autonomous driving capabilities. The system is marketed as a low‑cost alternative to factory‑built advanced driver assistance systems, and it has gained a following among automotive enthusiasts who wish to retrofit their cars with higher levels of automation.

In the incidents that prompted the investigation, the vehicles using comma.ai’s system collided with other cars that were either stopped or moving slowly on the roadway. The crashes led to a number of serious injuries and a few fatalities. While the exact circumstances of each event have not yet been fully disclosed, the pattern of collisions has raised concerns about the reliability and safety of aftermarket autonomous technology.

The NHTSA investigation is part of the agency’s broader effort to ensure that any system marketed as capable of autonomous operation meets federal safety standards. Depending on the findings, the agency could issue safety warnings, mandate recalls, or impose new regulatory requirements for aftermarket products. The investigation is ongoing, and the agency will release its conclusions once the review is complete.

", "key_points": [ "The U.S. National Highway Traffic Safety Administration is investigating comma.ai after multiple deaths and injuries.", "Federal officials know of five crashes where cars equipped with comma.ai devices hit slow or stopped vehicles.", "The incidents involved serious injuries and fatalities, raising safety