Waymo Recalls 3,800 Robotaxis Over Water Detection Failures

Waymo recalled 3,800 vehicles after its autonomous systems failed to gauge standing water depth, leading to incidents where robotaxis drove into flood conditions. One vehicle was swept away in San Antonio; another required passenger evacuation. The issue points to a core challenge: cameras and lidar sensors struggle to measure water depth reliably, demanding new algorithmic approaches that autonomous navigation systems alone cannot provide.