The incident follows multiple reports of Waymo vehicles illegally passing school buses, raising new safety concerns for children and other vulnerable pedestrians. On the Dash:NHTSA is investigating a Waymo self-driving vehicle that struck a child near a Santa Monica elementary school. The child sustained minor injuries, and Waymo cooperated, reducing speed before impact and remaining at the scene. The incident adds further scrutiny to Waymo as questions about autonomous vehicle safety continue to grow. In December, NHTSA launched a probe into 2,000 Waymo robotaxis after documented incidents in which the vehicles illegally passed stopped school buses in Atlanta and Texas.