Legally reviewed by:
Setareh Law
May 14, 2026

As autonomous vehicles become increasingly common on California roads, they introduce novel legal questions about responsibility and liability in accident scenarios. One particularly important question is whether passengers in self-driving cars can be held liable for crashes. The answer is nuanced and depends on several factors, including the vehicle’s automation level, the passenger’s actions or inactions, and the specific circumstances of the accident.

At Setareh Law, we closely monitor developments in autonomous vehicle law to provide informed guidance to clients affected by these emerging technologies. Our attorneys understand the complex interplay between traditional vehicle liability principles and the new paradigms created by self-driving technology. We help passengers, pedestrians, and other motorists navigate the legal landscape when accidents involving autonomous vehicles occur.

Understanding Levels of Vehicle Automation

To assess potential passenger liability, it’s essential to understand that not all “self-driving” vehicles are equal. The Society of Automotive Engineers (SAE) defines six levels of driving automation, from Level 0 (fully manual) to Level 5 (fully autonomous):

Partial Automation (Levels 2-3)

Many vehicles currently marketed as “self-driving” actually operate at Level 2 or 3, where the system handles steering and acceleration under certain conditions, but human oversight remains necessary. In these vehicles, passengers designated as operators maintain legal responsibility for monitoring the driving environment and taking control when needed.

Full Automation (Levels 4-5)

In truly autonomous vehicles (Levels 4-5), the system handles all driving tasks without human intervention. Level 5 vehicles may not even have steering wheels or pedals. As these vehicles become more common, liability questions grow more complex, potentially shifting from human passengers toward manufacturers, software developers, and fleet operators.

Scenarios Where Passengers May Face Liability

Even in highly automated vehicles, certain circumstances may lead to passenger liability:

Failure to Intervene When Required

In Level 2-3 vehicles, designated operators who fail to take control when the system prompts them or when conditions obviously require human intervention may be negligent. For example, if a Tesla on Autopilot approaches road construction and the passenger ignores alerts to take control, resulting in an accident, they may face liability for this failure.

Improper Maintenance or Use

Passengers may also bear responsibility if they:

  • Override safety systems or tamper with autonomous functions
  • Use self-driving features in prohibited areas or conditions
  • Ignore required software updates affecting safety systems
  • Knowingly operate a vehicle with malfunctioning autonomous features
  • Misuse the technology in ways contrary to the manufacturer’s instructions

These actions could constitute negligence if they contribute to a car accident. Courts will likely examine whether the passenger’s conduct created foreseeable risks that a reasonable person would have avoided.

Shared Control Scenarios

In partially automated vehicles, determining liability becomes particularly challenging when control shifts between human and computer. If an accident occurs during this transition period, liability may depend on factors such as: how quickly the system transferred control to the human, whether the driver received adequate warning, what the driver was doing at the moment of transition, and whether the timing of the handover itself constituted a system failure.

Who Else Can Be Liable in a Self-Driving Car Accident?

While passenger liability is one piece of the puzzle, self-driving car accident cases often involve multiple responsible parties. California law allows injured victims to pursue claims against any party whose negligence contributed to the crash.

Vehicle Manufacturers and Software Developers

When a self-driving car accident results from a design defect, sensor malfunction, or software error, the vehicle manufacturer or the developer of the autonomous system may be held liable under product liability law. This applies whether the defect was in the hardware, the AI decision-making system, or the failure to warn users of known limitations.

Ride-Hailing and Fleet Companies

Autonomous vehicles are increasingly deployed by ride-hailing and commercial fleet operators. If you are injured in a self-driving taxi or rideshare vehicle, the company operating the fleet — such as Waymo or a similar service — may carry liability through its corporate insurance policy, similar to how Uber and Lyft are responsible for accidents involving their drivers.

Third-Party Drivers and Government Entities

Not every self-driving car accident is caused by the autonomous vehicle itself. A human driver who cuts off or collides with an AV may bear fault. In some cases, poor road conditions, malfunctioning traffic signals, or inadequate signage maintained by a city or government entity can also contribute to a crash, creating potential liability for those public bodies.

Shifting Liability Landscape

As autonomous technology evolves, we anticipate liability will increasingly shift toward manufacturers, developers, and fleet operators. Several factors drive this trend:

Product Liability Principles

When vehicles operate autonomously, accidents may more often result from design flaws, software bugs, or sensor failures than human error. In these cases, product liability principles apply, focusing on whether the autonomous system was defectively designed, manufactured, or marketed without adequate warnings about its limitations.

Regulatory Developments

California and federal regulations governing autonomous vehicles continue to evolve, potentially clarifying liability questions. California requires manufacturers to maintain specific insurance coverage for autonomous testing and has implemented reporting requirements for autonomous vehicle accidents. These regulations may eventually establish clearer liability frameworks for victims pursuing compensation.

How Insurance Works After a Self-Driving Car Accident in California

Insurance coverage in autonomous vehicle accidents can involve several layers depending on who is at fault and what type of vehicle was involved:

  • Owner’s auto insurance: If the vehicle is privately owned, the owner’s standard auto policy is typically the first source of coverage, even if the car was operating autonomously at the time.
  • Manufacturer or corporate liability insurance: If a product defect caused or contributed to the crash, the manufacturer’s liability insurance may apply. California requires AV manufacturers to carry minimum insurance thresholds for vehicles in testing and commercial operation.
  • Product liability claims: When system failures are the root cause, victims may pursue a product liability claim directly against the manufacturer or software developer, separate from any auto insurance claim.

Because multiple policies and parties may be involved, it is important to consult an attorney before accepting any settlement offer.

What to Do After a Self-Driving Car Accident in California

If you are involved in a self-driving car accident, taking the right steps early can significantly strengthen your claim:

  • Call 911 and seek medical attention for any injuries, even if they seem minor.
  • Document the scene with photos of the vehicles, road conditions, traffic signals, and any visible damage.
  • Preserve vehicle data: Modern autonomous vehicles record detailed event data through onboard systems and sensors. Request that this data be preserved immediately, as it can be critical evidence.
  • Avoid speaking to insurers without first consulting an attorney — statements made early in the process can be used to limit your recovery.
  • Contact a personal injury attorney who understands California autonomous vehicle law as soon as possible.

How Setareh Law Can Help After an Autonomous Vehicle Accident

If you’ve been involved in an accident with a self-driving car — whether as a passenger, another motorist, or a pedestrian — navigating the liability issues requires specialized legal knowledge. Our attorneys at Setareh Law can assist by:

  • Investigating the technical aspects of the accident, including the vehicle’s automation level and operating status at the time of the crash
  • Determining whether the passenger had legal responsibility to monitor or control the vehicle
  • Analyzing whether manufacturer defects or software failures contributed to the crash
  • Identifying all potentially liable parties, which may include passengers, manufacturers, software developers, fleet operators, and others
  • Advocating for fair compensation based on the applicable liability principles

Our approach combines thorough investigation with current knowledge of this rapidly evolving area of law. We also recommend reading our related guide: Who’s At-Fault in a Self-Driving Car Accident?

Contact a California Personal Injury Attorney Today

As self-driving technology transforms transportation, accident liability questions grow increasingly complex. At Setareh Law, our attorneys help clients throughout California navigate the challenging intersection of technology and liability law. Whether you were a passenger in a self-driving car or were injured by one, we can help you determine the appropriate path forward.

Contact us today at (310) 659-1826 or through our contact form to schedule a free consultation about your autonomous vehicle accident case.