The U.S. government’s road safety agency is again investigating Tesla’s “Full Self-Driving” system, this time after receiving reports of crashes in low-visibility conditions, including one that killed a pedestrian.
The National Highway Safety Administration says it opened the probe on Thursday after the company reported four crashes when Teslas entered areas of low visibility, including sun glare, fog and airborne dust.
In addition to the pedestrian’s death, another crash involved an injury, the agency said.
Investigators will look into the ability of “Full Self-Driving” to “detect and respond appropriately to reduced roadway visibility conditions, and if so, the contributing circumstances for these crashes.”
The investigation covers roughly 2.4 million Teslas from the 2016 through 2024 model years.
Tesla has repeatedly said the system cannot drive itself and human drivers must be ready to intervene at all times.
Last week Tesla held an event at a Hollywood studio to unveil a fully autonomous robotaxi without a steering wheel or pedals. CEO Elon Musk said the company plans to have fully autonomous vehicles running without human drivers next year, and robotaxis available in 2026.
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