Waymo Recalls Thousands of Robotaxis Over Construction Zone Risk

Waymo has initiated a voluntary recall for 3,871 of its robotaxi vehicles due to a software flaw that could allow the autonomous vehicles to enter closed freeway construction zones. The issue stems from the company's 5th Generation Automated Driving System (ADS), which may fail to recognize construction zones or prioritize avoiding other freeway hazards, leading the vehicles to continue driving within them.

The National Highway Traffic Safety Administration (NHTSA) reported that Waymo identified several incidents in Phoenix and the San Francisco Bay Area where vehicles entered construction zones by driving between cones or past ramp closure signs. In response to these events, Waymo has temporarily restricted its freeway operations across its service areas while it deploys a software fix.

Incidents and Response

Waymo's internal timeline indicates that the first cluster of events occurred in Phoenix on April 11 and April 19. Subsequently, on May 18, seven Waymo vehicles entered active freeway construction lanes in the San Francisco Bay Area. Waymo stated that no collisions or injuries were reported as a result of these incidents. However, the company decided to suspend freeway driving operations more broadly to identify and address the root causes.

Following these events, Waymo restricted freeway driving while implementing operational changes. After the San Francisco incidents, the company suspended freeway driving more widely to thoroughly address the issue. Waymo will update the ADS software to improve its ability to detect and avoid construction zones, alongside additional operational protocols. As Waymo owns the affected vehicles, the company will apply the remedy directly.

Waymo's Perspective and Broader Implications

A Waymo spokesperson emphasized the company's mission to be the world's most trusted driver and highlighted its safety record. "We identified an area of improvement regarding performance around freeway construction zones," the spokesperson said. "We voluntarily restricted freeway operations last month while making improvements, proactively notified state and federal regulators, and decided to file a voluntary software recall with NHTSA."

Waymo reports that its rider-only vehicles have accumulated 170.7 million miles without a human driver through December 2025. The company also states that the Waymo Driver has had 92% fewer serious injury-or-worse crashes compared to an average human driver over the same distance in its operating cities, though this safety data primarily focuses on surface-street driving.

Construction zones present a unique challenge for autonomous vehicles due to their dynamic nature. Lane markings can disappear, cones can shift, and temporary signs may conflict with expected road layouts. These unpredictable conditions require autonomous systems to rapidly interpret and adapt to changing environments, a task that can be difficult for software designed for more predictable conditions.

Impact on Service and Public Perception

The recall means that freeway rides may be unavailable for Waymo customers while the company implements the fix. Surface-street service is continuing as normal in all operating cities. Waymo advises riders to check routes, prices, and estimated travel times in the app and to utilize in-app support options if they experience issues during a ride. Emergency situations should still be reported to 911.

For other road users, Waymo suggests treating robotaxis like any other vehicle but advises giving them extra space around construction areas, as driverless cars may not perceive temporary closures in the same way a human driver would. The incidents raise broader questions about public trust in autonomous vehicles, particularly concerning their ability to handle unexpected or rapidly changing road conditions, which are often confusing even for human drivers.