Waymo’s self-driving robotaxis plunged into deadly San Antonio floodwaters, exposing a dangerous software flaw that could endanger American lives despite the company’s rapid recall.[1][2]
Story Snapshot
- Waymo recalls 3,791 autonomous vehicles after one entered a flooded roadway in San Antonio at reduced speed on a 40 mph road.[1][2]
- Software defect in 5th and 6th generation systems slows but fails to stop vehicles on higher-speed roads detecting untraversable flooded lanes.[1][2]
- Affected robotaxis operate in six cities: Phoenix, San Francisco, Los Angeles, Austin, San Antonio, and Atlanta.[1]
- No injuries occurred since the vehicle was unoccupied, but videos show other risky behaviors like running red lights and driving through floods.[1]
- Waymo deployed software updates and weather restrictions, raising questions about federal oversight of unproven autonomous tech.[2]
San Antonio Flood Incident Triggers Massive Recall
An unoccupied Waymo autonomous vehicle entered an untraversable flooded section of roadway in San Antonio, Texas. The incident occurred on a road with a 40 miles per hour speed limit. The vehicle slowed but did not stop despite detecting the hazard. National Highway Traffic Safety Administration (NHTSA) documents confirm the event prompted Waymo’s voluntary recall filed on April 30, 2026.[1][2]
Waymo recalled 3,791 vehicles equipped with 5th and 6th generation Automated Driving Systems. The defect allows cars to drive through standing water on higher-speed roadways. All affected vehicles received an interim software update by April 20. The recall spans operations in Phoenix, San Francisco, Los Angeles, Austin, San Antonio, and Atlanta.[1]
Software Flaw Raises Alarms Over Public Safety
Waymo’s Automated Driving System software flaw prevents full stops in response to flooded lanes on faster roads. NHTSA filings detail how the system may slow but proceed into untraversable water. A Waymo spokesperson stated the company is adding software safeguards and refining extreme weather operations. Measures include limiting access to flash flood-prone areas during intense rain.[1][2]
Dashcam videos from Dallas capture Waymo vehicles running red lights at the Irving Boulevard intersection. The cars failed to recognize dim signals, nearly turning into oncoming traffic. University of Texas at Austin expert Nil Bhat noted such systems struggle with untrained scenarios. Additional San Antonio footage shows robotaxis stuck in flooded intersections or speeding through high water and sidewalks.[1]
Federal Oversight Questions Mount for Autonomous Vehicles
No injuries resulted from the San Antonio incident, as the vehicle carried no passengers. Waymo emphasizes its safety record, claiming 82% to 92% fewer serious crashes than human drivers. Critics question reliance on unproven technology amid repeated recalls. This marks Waymo’s third recall in over two years, highlighting persistent edge-case failures in real-world conditions like weather.[1]
Waymo’s latest recall highlights how tough real-world edge cases are for autonomous driving. After a robotaxi entered floodwaters in Texas, Waymo has tightened safeguards.
Read the full article for more details: https://t.co/JdqicX7jBs #Waymo #SelfDrivingCars
— Digital CxO (@DigCxO) May 13, 2026
NHTSA acknowledged the voluntary recall without penalties or service disruptions. The agency logged over 100 autonomous vehicle safety investigations since 2016, with weather issues in 15% to 20% of cases. A 2023 RAND analysis of 1,200 incidents found 28% tied to environmental challenges. Trump administration officials may scrutinize such tech to protect American drivers from corporate overreach.[1]
Sources:
[1] Web – Waymo recalls robotaxi fleet after one drove into Texas floodwaters
[2] Web – Waymo recalls over 3500 vehicles after robotaxi entered flooded …
