US opens probe into 2,895 Waymo vehicles over school bus safety violations

The U.S. National Highway Traffic Safety Administration said on Monday it had opened a recall query into 2,895 vehicles operated by Alphabet’s self-driving unit Waymo over continued traffic safety violations involving the vehicles’ behavior when encountering school buses.

NHTSA said it was reviewing whether a software update implemented by Waymo under a December 2025 recall adequately addressed a defect that could cause Waymo vehicles to pass school buses displaying flashing red lights or extended stop arms after initially slowing or stopping.