Waymo Robotaxi Reportedly Entered Flooded San Antonio Roadway and Was Swept Into Waterway

April 20, 2026

An unoccupied Waymo robotaxi reportedly entered a flooded roadway near Salado Creek in San Antonio on April 20, 2026, and was swept into a nearby waterway. The vehicle detected potentially untraversable floodwater but proceeded at reduced speed. No passengers were aboard and no injuries were reported. Following this incident, Waymo restricted its operations and later recalled 3,791 fifth- and sixth-generation automated driving systems. For more information on the implications of autonomous vehicles in hazardous environments, contributors—JOIN US—to learn more.

Matched TAIM controls

Suggested mapping from embedding similarity (not a formal assessment). Browse all TAIM controls

MANAGE 2.3 — similarity 0.576, rank 1. TAIM detail and related incidents →
MEASURE 2.6 — similarity 0.567, rank 2. TAIM detail and related incidents →
MEASURE 3.1 — similarity 0.563, rank 3. TAIM detail and related incidents →

Alleged deployer: waymo, robotaxi-operators, automated-driving-system-deployers
Alleged developer: waymo, automated-driving-system-developers
Alleged harmed parties: waymo, road-users

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Source

Data from the AI Incident Database (AIID). Cite this incident: https://incidentdatabase.ai/cite/1544

Data source

Incident data is from the AI Incident Database (AIID).

When citing the database as a whole, please use:

McGregor, S. (2021) Preventing Repeated Real World AI Failures by Cataloging Incidents: The AI Incident Database. In Proceedings of the Thirty-Third Annual Conference on Innovative Applications of Artificial Intelligence (IAAI-21). Virtual Conference.

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