Autonomous vehicles keep crashing into a problem that no software update can easily fix: the messy, unspoken social rules that govern how humans share the road. Regulators have pulled permits, federal ...

Italo Frigoli was trying out the Full Self-Driving software of his Tesla one evening in June when he came upon a railroad crossing. The arms were descending and lights were flashing as a train ...

My glasses were gone. One of my kids was standing on the sidewalk next to our car—not crying, just confused. The seat belt ...

Tesla drivers say they had to slam on the breaks when their 'self-driving' Teslas failed to detect oncoming trains. (Erik Carter for NBC News) Italo Frigoli was trying out the Full Self-Driving ...