Waymo robotaxis malfunction during San Francisco July 4th gridlock
During San Francisco's July 4th celebrations, multiple Waymo robotaxis malfunctioned, with one vehicle driving through an exploding firework and others becoming stranded with drained batteries during heavy traffic congestion. Passengers were reportedly unharmed but alarmed, and the incidents caused disruptions to traffic and public sentiment toward the autonomous vehicles.
What happened
On July 4, 2026, Waymo robotaxis experienced multiple malfunctions during heavy traffic and celebrations in San Francisco. One Waymo vehicle drove through an exploding firework at an intersection where a person had ignited it, with passengers hearing the detonation and seeing colorful smoke.
Multiple Waymo vehicles became stranded in traffic congestion following the fireworks display near the Golden Gate Bridge, with at least a dozen vehicles stopping and their batteries draining. Waymo's roadside assistance team worked to tow vehicles away from the area.
Reported impact
Passengers in the vehicle that drove through fireworks reported alarm but no injuries. One vehicle reportedly caught fire after driving over fireworks.
The battery-depleted vehicles contributed to traffic disruption, with motorists reporting nearly two hours of standstill traffic and people exiting their cars to yell at the immobilized Waymo vehicles.
Index analysis
The autonomous vehicles did not respond appropriately to unexpected obstacles created by fireworks in the roadway. The system's behavior during the firework incident suggests limitations in obstacle detection or decision-making in chaotic conditions.
The vehicles' rapid battery depletion during extended traffic congestion revealed a vulnerability in the fleet's energy management, causing operational failures during predictable peak-traffic conditions.
Governance controls
Waymo stated it coordinated with local authorities and emergency services to clear vehicles from the area following the incidents.
The company said it is evaluating ways to strengthen Waymo's resilience in major traffic disruptions, but no specific measures were announced.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.