Waymo says it temporarily suspended its ride-hailing service in San Francisco during a citywide blackout, as downed traffic lights appeared to halt its vehicles
Waymo said Saturday that it was stopping service across San Francisco after numerous online videos showed its autonomous vehicles …
Mission LocalJoe Rivano Barros
Context & Ripple Effects
The San Francisco interruption sits within a broader record of Waymo narrowing or pausing service when city conditions exceed its operating assumptions, including protest-related limits across several cities and a later Los Angeles shutdown after vehicles were destroyed.
The outage became a concrete reliability test rather than a permanent withdrawal: Waymo resumed San Francisco service the next day, and subsequently said it would update fleet navigation for widespread outages.
First-order effects
Waymo riders in San Francisco temporarily lost access to the service while vehicles faced nonfunctioning traffic signals and the company returned cars to depots or had them pull over.
The incident exposed an operational dependency on usable traffic-control infrastructure, requiring Waymo to stop dispatching rather than continue normal service under degraded conditions.
For customers and city stakeholders, repeated safety-driven pauses make service availability—not just autonomous driving capability—a meaningful part of robotaxi reliability.
Third-order effects
If disruptions from outages, protests, and severe road conditions continue to trigger broad pauses, robotaxi expansion will depend on proving resilient fallback operations across a city’s edge cases, not merely routine-route performance.
The pattern could push operators toward more explicitly constrained service areas and conditions, with human support remaining an important backstop when automated systems encounter infrastructure failures.
The trend: Robotaxi services are moving from controlled commercial rollout toward the harder task of maintaining dependable operations through unpredictable citywide disruptions.
Oh what a surprise, another traffic jam from a confused @waymo that can't handle the power outage. Also cellular service has been pretty spotty so maybe their remote driver backups are having trouble controlling them? [image]
So the power is out including the traffic lights and these two @Waymo are clearly out of their depth. Causing a pretty major traffic jam. #sanfrancisco [image]
San Francisco, CA (DEC.20.2025) It's official. This is the 1,000th posted video from the Sunset Project™️. Just over 20m views on X to date. This afternoon's flurry of frozen Waymo's across the city of San Francisco causing a historic traffic meltdown has brought about the [video…
Bad day to be a Waymo (and even worse to be inside or stuck behind one). A widespread blackout left robotaxis stalled across the city, causing traffic chaos Saturday night. Read more: https://sfstandard.com/... [video]
Waymo has halted service in San Francisco after numerous videos & images showed its autonomous cars snarling traffic during the blackout. With traffic lights down, Waymos across the city stopped dead in their tracks at intersections. https://missionlocal.org/...
Waymos are bad for human jobs, but good, generally, for traffic safety. — Blackouts are (for the time being, anyway) an edge case, but the public needs to know how/if this can be addressed, bc that makes the impacts of quakes or cyberterror more fraught. sfstandard.com/2025/12/…
How blackouts in San Francisco this weekend shut down Waymo. — “.. Traffic lights across the city were down, seemingly confusing the driverless cars — and halting them in their tracks.” — @missionlocal.org $GOOGL — missionlocal.org/2025/12/sf- w... [image]
we absolutely do not need driverless cars, or self-driving cars for that matter. Put that money and talent toward something useful, like the #climatecrisis FFS — missionlocal.org/2025/12/sf- w...
I would dearly love to know what, if any, “what happens if...” discussions were had before deploying these things on city streets. — A traffic light going out is not much of a black swan! — Waymo halts service during massive S.F. blackout after causing traffic jams