Baidu Apollo Go Robotaxis Stopped in Traffic During Reported System Failure in Wuhan, Stranding Some Passengers

On March 31, 2026, Baidu's Apollo Go robotaxi service in Wuhan experienced a widespread system failure, causing numerous autonomous vehicles to stop abruptly in live traffic, including on highways. Passengers were stranded inside the vehicles for extended periods, and the failure led to multiple traffic collisions, including one involving an SUV traveling at 40 mph. Local authorities and the company confirmed the incident, citing a system malfunction.

Baidu's Apollo Go robotaxi service in Wuhan experienced a reported system failure that left multiple vehicles stopped in live traffic, including on elevated roads, and stranded some passengers until police and company personnel responded. At least 100 vehicles were reportedly affected. Police said no injuries were reported.

Source: AI Incident Database

Risk classification

  • Primary risk domain: 7 AI system safety, failures, & limitations
  • Primary risk subdomain: 7.3 Lack of capability or robustness

The robotaxis failed to perform reliably under normal operating conditions, experiencing a system-wide freeze that created severe traffic hazards.

Causal factors

  • Entity: AI
  • Intent: Unintentional
  • Timing: Post-deployment

The incident was caused by an unexpected system malfunction in deployed autonomous vehicles, leading them to freeze in active traffic.

EU AI Act risk tier

  • Risk tier: 2 High Risk

High Risk: The system is an AI used in critical infrastructure (specifically, traffic management and autonomous transport/robotaxis on public highways).

AI system and alleged parties

  • AI system: Apollo Go (Baidu)
  • AI purpose: Autonomous Driving; Navigation Assistant
  • Behaviour type: Autonomous
  • Alleged developer: Baidu, Apollo
  • Alleged deployer: Baidu, Apollo Go
  • Alleged harmed parties: Road users in Wuhan, China, Road users, Apollo Go passengers

Harm severity

Severity ratings are based on this scale.

Highest direct severity in any category: Minor. Severity is scored from Negligible to Catastrophic in each harm category, for harm the reports describe as caused directly or indirectly by the AI system.

  • Physical: direct Negligible, indirect Negligible
  • Infrastructure: direct Negligible, indirect Negligible
  • Property: direct Negligible, indirect Minor
  • Financial: direct Negligible, indirect Minor
  • Environmental: direct Negligible, indirect Negligible
  • Malicious content: direct Negligible, indirect Negligible
  • Differential treatment: direct Negligible, indirect Negligible
  • Civil rights: direct Negligible, indirect Negligible
  • Democracy: direct Negligible, indirect Negligible
  • Privacy: direct Negligible, indirect Negligible
  • Psychological: direct Minor, indirect Negligible
  • Epistemic: direct Negligible, indirect Negligible
  • Child sexual exploitation and abuse: direct Negligible, indirect Negligible

Property

Reported: Yes

Indirectly caused: An SUV sustained major front-end damage after colliding with a stopped robotaxi at 40 mph, and a minivan and another robotaxi were damaged in a rear-end collision.

Inferred additional harm: With dozens of vehicles stranded on busy roads, additional minor collisions and vehicle damage likely occurred but were not detailed in the reports.

Financial

Reported: Yes, the report describes vehicle collisions causing property damage, though no specific monetary values are explicitly stated.

Indirectly caused: Significant financial losses were incurred by vehicle owners and Baidu due to physical damage to at least three vehicles and towing costs.

Inferred additional harm: We infer thousands of dollars in vehicle repair costs, towing fees, and operational losses for Baidu due to fleet downtime.

Psychological

Reported: Yes

Directly caused: At least four passengers experienced distress and anxiety from being trapped inside frozen vehicles on busy highways with non-functional SOS buttons.

Inferred additional harm: Dozens of other trapped passengers and drivers who narrowly avoided collisions likely experienced significant temporary distress and anxiety.

People affected

  • Occurrences reported: 1
  • People reportedly harmed: 7
  • People reportedly exposed: 30

Potential causes

Management

  • Poor Incident Management: Baidu lacked effective procedures to quickly resolve widespread vehicle freezes.
  • Inadequate Support Staffing: No company representatives arrived to assist passengers trapped over an hour.

Technology

  • Vehicle System Malfunction: A sudden system malfunction caused the autonomous vehicles to freeze in traffic.
  • Network Connectivity Failure: Customer service reported the driving system anomaly was due to network issues.
  • SOS Button Malfunction: Passengers reported the in-car SOS button was completely unavailable.

Human Factors

  • Passenger Panic and Confusion: Passengers were trapped inside frozen vehicles with misleading instructions.
  • Delayed Driver Reactions: Other drivers on the road could not react fast enough to avoid stopped taxis.

Process and Methods

  • Inadequate Emergency Response: Baidu customer support failed to dispatch help or provide clear information.
  • Unresponsive Support Channels: Phone support took 30 minutes to reach and SOS buttons did not work.
  • Misleading In-Car Instructions: Screens instructed passengers to wait 5 minutes, but help never arrived.

Regulatory Environment

  • Aggressive Public Road Testing: Wuhan aggressively permitted fully autonomous vehicles on busy highways.

Information quality

  • Classification confidence: High
  • Reason for confidence: The reports from multiple sources consistently describe the timeline, location, and consequences of the system failure. While the exact technical root cause is only briefly attributed to a 'system malfunction' or 'network reasons', the physical events and resulting harms are well-documented.
  • Ambiguities identified: The exact technical nature of the system malfunction or network reasons is not fully explained.
  • Alternative interpretations: None. The event is clearly a technical failure of an autonomous vehicle fleet.

A widespread system failure in Baidu's Apollo Go autonomous robotaxi fleet in Wuhan caused multiple vehicles to freeze in live traffic, leading to localized disruptions and minor collisions. The incident represents a minor physical security and infrastructure concern regarding the robustness of autonomous transport systems, but carries negligible broader national security implications.

  • Overall national security impact: Minor
  • Scope: Single nation
  • Primary target: China
  • Alleged perpetrator: Unknown

Threat characteristics

  • Imminence: Long-term. The immediate system failure was resolved, representing an ongoing technical reliability concern for autonomous vehicle deployment rather than an active national security crisis.
  • Autonomy: Full autonomy. The Apollo Go vehicles operate with full autonomy on public roads, making driving decisions without active human intervention.
  • Novelty: Evolved capability. Widespread fleet-wide freezes represent an evolved failure mode of autonomous driving technology operating at scale in dense urban environments.

Impact by dimension

  • Physical security: Minor. System failure caused localized traffic disruption and minor collisions on highways, managed by local police and company protocols without broader national infrastructure compromise.
  • Information security: Negligible. No information warfare, intelligence compromise, or data theft occurred during this technical malfunction.
  • Sovereignty: Negligible. The incident was a commercial fleet malfunction with no impact on state authority, government decision-making, or sovereign functions.
  • Economic security: Negligible. Property damage was limited to a few vehicles and operational downtime for a single commercial fleet, presenting no systemic threat to economic or technological security.
  • Societal stability: Negligible. While causing temporary distress to stranded passengers, the incident did not lead to social instability, civil unrest, or human rights violations.
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