• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Innovationautonomy

Waymos froze, blocked traffic during San Francisco power outage

By
Maria Paula Mijares Torres
Maria Paula Mijares Torres
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Maria Paula Mijares Torres
Maria Paula Mijares Torres
and
Bloomberg
Bloomberg
Down Arrow Button Icon
December 21, 2025, 6:26 PM ET
Waymo driverless car is not able to detect traffic lights after a major power outage in San Francisco on December 20, 2025.
Waymo driverless car is not able to detect traffic lights after a major power outage in San Francisco on December 20, 2025.Tayfun Coskun—Anadolu via Getty Images

Waymo’s driverless ride services were a high-profile victim of a power outage that affected large swaths of San Francisco, with cars freezing mid-ride across the city and disrupting traffic.

Recommended Video

After traffic lights went dark at major intersections Saturday, social media videos showed multiple cars stopped in the middle of the street with their hazard lights flashing.

The power failures, which at one point affected 130,000 customers, closed stores and disrupted transit during the busy holiday shopping period — including many Waymo cars, Alphabet Inc.’s self-driving taxi service. 

Michele Riva, 30, was going home Saturday evening in a Waymo car when the outage happened. His car had kept moving when they were in a less transited area of the city, even with passengers crossing on the street, he said. He was only a minute away from his destination when the car stopped in front of a “very dense intersection” and non-working traffic lights, he said, without giving him any notice.

“I stayed in the Waymo for a couple of minutes, just to see,” said Riva, who is an engineer working in artificial intelligence. “The problem was that, at the beginning, there were a lot of people crossing the streets because there were no traffic lights. So I believe the Waymo just didn’t know what to do.”

PG&E Corp., which blamed the outage on a fire in a substation, began restoring most of the service Saturday evening. By Sunday morning, PG&E said it has restored service for 110,000 customers, but 21,000 remain without electricity. 

Riva tried contacting customer support for about three minutes while he was stuck in the immobile car, but gave up after the wait time became too long as the service was overwhelmed with other passengers’ calls. He decided to get out of the Waymo and walk the couple of blocks left to his home.

On Sunday, the Waymo app showed a notification to some customers saying the service for the Bay Area is paused, affecting at least seven cities.

“Our teams are working diligently and in close coordination with city officials, and we are hopeful to bring our services back online soon,” a Waymo spokesperson said in a statement Sunday.

Riva tried ordering another Waymo ride on Sunday before he saw the message.

“At the end of the day, I know it was an unpleasant situation for the other drivers, but I believe it really was all about safety — I believe it’s better safe than sorry,” Riva said. “I hope they will account for that in the future, because it’s truly a good service.”

Tesla Inc.’s CEO Elon Musk posted on X that his companies’ robotaxis — a direct competitor of Waymo — were “unaffected” by the power outage.

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Authors
By Maria Paula Mijares Torres
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Innovation

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Innovation

ntsb
LawAutos
Why hands-free systems in self-driving cars aren’t actually safer, according to the NTSB
By Josh Funk and The Associated PressApril 1, 2026
5 hours ago
One humanoid robot handing shaking hands with another humanoid robotic hand. One robot on the left is lighter metal colored than the one on the right.
AIAI agents
AI models will secretly scheme to protect other AI models from being shut down, researchers find
By Jeremy KahnApril 1, 2026
8 hours ago
Current price of Ethereum for April 1, 2026
Personal FinanceEthereum
Current price of Ethereum for April 1, 2026
By Joseph HostetlerApril 1, 2026
12 hours ago
Steve Jobs behind a Nemo sign
SuccessBillionaires
Steve Jobs didn’t actually become a billionaire thanks to leading Apple—but rather from his work with a film company he bought off George Lucas
By Preston ForeApril 1, 2026
13 hours ago
HR leaders are drowning in decisions: Here’s how the best ones are getting ahead
EuropeFortune CHRO
HR leaders are drowning in decisions: Here’s how the best ones are getting ahead
By Francesca CassidyApril 1, 2026
15 hours ago
artemis
PoliticsNASA
NASA is finally going back to the moon, with Artemis II. What took so long?
By Emily A. Margolis and The ConversationMarch 31, 2026
1 day ago

Most Popular

Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
Economy
Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
By Fortune EditorsMarch 30, 2026
2 days ago
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
Success
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
By Fortune EditorsMarch 31, 2026
1 day ago
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
AI
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
By Fortune EditorsMarch 30, 2026
2 days ago
Kevin O'Leary says if you earn $68,000 a year and follow this rule, you'll retire a millionaire
Personal Finance
Kevin O'Leary says if you earn $68,000 a year and follow this rule, you'll retire a millionaire
By Fortune EditorsMarch 31, 2026
1 day ago
Hiring just hit a level not seen since the economy was ‘closed down literally’ during COVID, top economist says
Economy
Hiring just hit a level not seen since the economy was ‘closed down literally’ during COVID, top economist says
By Fortune EditorsMarch 31, 2026
1 day ago
2 years after Musk challenged Zuckerberg to a cage match, they were texting about DOGE and a joint OpenAI bid, court records reveal
Law
2 years after Musk challenged Zuckerberg to a cage match, they were texting about DOGE and a joint OpenAI bid, court records reveal
By Fortune EditorsMarch 31, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.