The Band-Aid Failed: Nine Days After Waymo Admitted Its Flood Fix Wasnt Ready, Another Robotaxi Hit Flooded Roads

Waymo expanded its operational pause to four cities Thursday after another unoccupied robotaxi drove into a flooded road, nine days after the company told federal safety regulators it had not yet finished developing an actual fix for the problem.

The latest incident happened in Atlanta on May 20, when a Waymo vehicle became stuck in a flooded intersection for roughly an hour before being retrieved. Waymo confirmed the suspension of its Atlanta service and said it had also paused operations in Dallas and Houston due to severe weather across Texas this week, adding to the service halts already in place in Atlanta and San Antonio.

The timing is the story. Waymo filed a recall with the National Highway Traffic Safety Administration on May 11 covering 3,791 fifth- and sixth-generation robotaxis. The recall filing acknowledged the defect plainly: the software may allow a vehicle to slow and then drive into standing water on higher-speed roads. The remedy section contained a single sentence that outlined Waymo’s position at the time: the fix was still under development. As an interim measure, the company modified the scope of vehicle operations to add weather-related constraints, a geo-fencing approach that restricts where the fleet can operate during poor weather conditions.

Nine days later, the geo-fencing approach did not prevent the Atlanta incident.

Waymo told TechCrunch that the Atlanta storm produced flooding before the National Weather Service had issued any flash flood warning, watch, or advisory. Those NWS alerts are part of the larger set of signals Waymo uses to prepare its vehicles for poor weather. When the flooding arrived before the alerts, the preparation window disappeared.

NHTSA said it is aware of the Atlanta incident and is in communication with Waymo. The agency did not specify what action it may take.

The Atlanta incident is not a one-off. The same pattern played out with a different safety problem. When Waymo’s robotaxis began illegally passing stopped school buses, the company shipped a software update it said would address the issue. The fleet continued making illegal maneuvers around school buses. NHTSA reviewed Waymo’s initial response, found it insufficient, and sent a second document request to the company on May 15 seeking further data and information.

The result is that Waymo is now operating under two simultaneous federal investigations: one centered on the flooding defects and the incidents in Atlanta, San Antonio, and Austin; another on the school bus passing failures. The company has a 1 million rides-per-week target and a stated goal of being match-ready for World Cup transportation. Both are contingent on a fleet whose safety systems keep failing in conditions that are routine for the Southern cities where Waymo is expanding.

The person next to the robotaxi is part of this story. So is the city planner, the insurance underwriter, and the regulator trying to determine whether an interim band-aid counts as adequate progress when the wound is still open.