Waymo Autonomous Vehicle Reportedly Ran Over and Killed a Cat in San Francisco

A Waymo autonomous taxi in San Francisco's Mission District reportedly ran over a well-known neighborhood cat, Kit Kat. The vehicle was reportedly pulling away from a pickup when the cat darted under it, according to Waymo. Local residents reportedly attempted to intervene, and a bartender transported the injured cat to an emergency clinic, where it later died.

Risk classification

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

The vehicle lacked the capability to detect objects directly underneath its carriage and could not interpret the context of a human crouching in front of it as a hazard warning.

Causal factors

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

The harm was caused by the autonomous decision of the Waymo vehicle to pull away while the cat was underneath it, which was an unexpected and unintentional outcome of its operation.

EU AI Act risk tier

• Risk tier: 2 High Risk

High Risk: The autonomous vehicle operates in public transport and critical road infrastructure, which has significant implications for public safety.

AI system and alleged parties

• AI system: Waymo autonomous taxi (Google)
• AI purpose: Autonomous Driving
• Behaviour type: Autonomous
• Alleged developer: Waymo
• Alleged deployer: Waymo
• Alleged harmed parties: Kit Kat, General public of San Francisco, Animal life

Harm severity

Severity ratings are based on this scale.

Highest direct severity in any category: Negligible. 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 Negligible
• Financial: direct Negligible, indirect Negligible
• 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 Negligible, indirect Minor
• Epistemic: direct Negligible, indirect Negligible
• Child sexual exploitation and abuse: direct Negligible, indirect Negligible

Psychological

Reported: Yes, the report explicitly describes emotional distress, shock, and grief among local residents and witnesses.

Directly caused: The witness who tried to save the cat was left shocked and frozen in horror as the vehicle pulled away close to her and ran over the cat.

Indirectly caused: The cat's owner and the local community experienced significant grief and mourning over the loss of their beloved neighborhood pet.

People affected

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

Potential causes

Management

• Prioritizing Deployment over Safety: Expanding fleet size without resolving undercarriage blind spots.

Technology

• Lack of Undercarriage Sensors: Vehicles lack sensors underneath to detect animals or objects under the car.
• Inability to Interpret Human Behavior: The system could not understand that a crouching pedestrian signaled danger.
• No External Emergency Stop: No physical button or easy way for bystanders to halt the vehicle.

Data Inputs

• Blind Spots Under the Vehicle: Sensor data does not cover the area directly beneath the vehicle chassis.

Human Factors

• Bystander Hesitation and Freezing: Witness froze and was disoriented, unsure how to stop the autonomous vehicle.
• Unsupervised Roaming Cat: The cat was allowed to roam the streets freely at night near traffic.

Process and Methods

• Inadequate External Communication: Only way for outsiders to contact Waymo is scanning a QR code for a webpage.
• Post-Collision Drive-Away: The vehicle continued its route after the collision without stopping.

Regulatory Environment

• Lack of Local Municipal Control: State regulates AVs, preventing local cities from enforcing safety rules.

Information quality

• Classification confidence: High
• Reason for confidence: The reports provide detailed, consistent accounts of the incident from both witnesses and Waymo representatives, supported by security camera footage.

A Waymo autonomous vehicle struck and killed a neighborhood cat in San Francisco, sparking local debate over AV safety, sensor limitations, and regulatory oversight. This incident represents a localized public safety and consumer technology failure with negligible implications for national security.

• Overall national security impact: Negligible
• Scope: Single nation
• Primary target: United States
• Alleged perpetrator: Unknown

Threat characteristics

• Imminence: Long-term. Reflects ongoing public debate and technical safety challenges of autonomous vehicles rather than an imminent threat.
• Autonomy: Full autonomy. The Waymo vehicle executed driving decisions and pulled away without real-time human operator intervention.
• Novelty: Established threat. Incidents involving autonomous vehicles colliding with animals or failing to recognize complex human gestures are previously documented issues.

Impact by dimension

• Physical security: Negligible. Localized traffic incident resulting in the death of a domestic pet. No human injuries or critical infrastructure damage occurred.
• Information security: Negligible. No information warfare, intelligence compromise, or systemic manipulation of information occurred.
• Sovereignty: Negligible. No threat to state authority, electoral systems, or core government operations.
• Economic security: Negligible. Minor local economic impact restricted to veterinary fees and loss of a pet, with no threat to strategic industries or national economic stability.
• Societal stability: Negligible. Localized community debate and minor protests occurred, but there is no threat to broader societal stability or human rights.