In a parked car open-door accident in California, the person who opened the door is presumed at fault. Vehicle Code 22517 requires anyone opening a door on the traffic side of a vehicle to make sure it’s safe first, and violating that duty is strong evidence of negligence.1California Legislative Information. California Code VEH 22517 – Opening and Closing Vehicle Doors That said, California uses pure comparative negligence, so the driver or cyclist who hit the door can pick up a share of the blame for speeding, distraction, or riding too close to parked cars. The percentage split controls how much each side pays.
The Law That Puts Fault on the Door-Opener
Vehicle Code 22517 says no one may open a door on the traffic side of a vehicle unless doing so is reasonably safe and won’t interfere with moving traffic. It also prohibits leaving a door open on the traffic side any longer than needed to load or unload passengers.1California Legislative Information. California Code VEH 22517 – Opening and Closing Vehicle Doors The statute says “no person,” which means it applies to drivers and passengers alike. A backseat passenger who flings a door open without looking carries the same legal obligation as the person behind the wheel.
Because the statute creates a specific duty of care, breaking it is treated as negligence in most claims. If you opened your door and someone hit it, expect the other side to lead with this statute. If you were the one who struck the open door, this is the law that shifts initial blame toward the person who opened it.
How Comparative Negligence Splits the Blame
California follows pure comparative negligence, which lets a court or insurer assign each party a percentage of fault and reduce their recovery accordingly.2Legal Information Institute. Comparative Negligence Even if the person who opened the door bears most of the responsibility, the moving driver can absorb a share for exceeding the speed limit, driving distracted, or hugging the line of parked cars when a travel lane was available farther out.
There’s no cutoff. A plaintiff who is 90% at fault can still recover 10% of their damages.3California Legislative Information. California Code CIV 1714 – Responsibility for Willful Acts and Negligence Many states bar recovery once fault crosses 50% or 51%; California doesn’t. Both sides have every reason to fight over each percentage point.
What typically shapes the split: surveillance or dashcam footage, witness statements, the location and pattern of vehicle damage, and the police report. Lighting matters too. Someone who opened a door at night on a poorly lit street without checking looks worse; a driver running dim headlights or failing to slow down in low visibility can pick up a share as well.
When a Passenger Opened the Door
Because Vehicle Code 22517 reaches “no person,” a passenger who causes a collision by opening a door without looking is the one who violated the statute and can be held personally liable.1California Legislative Information. California Code VEH 22517 – Opening and Closing Vehicle Doors The driver of the parked car generally isn’t on the hook for something a passenger did independently.
This changes the insurance path. The passenger’s own auto liability policy, if any, may be the relevant coverage rather than the vehicle owner’s policy. Where coverage is thin or missing, the injured party may need to use their own uninsured motorist coverage or sue the passenger directly.
Cyclists and Scooter Riders
California law treats bicycles as traffic, so Vehicle Code 22517 fully protects cyclists struck by an opening door.1California Legislative Information. California Code VEH 22517 – Opening and Closing Vehicle Doors A doored cyclist has the same legal claim as a driver, and the person who opened the door faces the same presumption of fault.
Injuries tend to be far worse than in car-to-car door collisions. There’s no metal shell absorbing the impact, and a rider can be thrown into the adjacent travel lane, creating a secondary collision risk.
One habit prevents most dooring incidents. It’s called the Dutch Reach: instead of opening the door with the hand closest to it, reach across your body with the far hand. Your torso swivels, your eyes go to the street, and you can’t miss an approaching cyclist or scooter.4Metropolitan Transportation Commission. Use the “Dutch Reach” to Keep Fellow Road Users Safe Then open slowly and step clear of the lane.
Insurance and Paying for the Damage
California is an at-fault state, so the responsible party pays through their liability coverage.5Legislative Analyst’s Office. Proposition 200 No-Fault Motor Vehicle Insurance When fault is shared, both insurers may contribute in proportion to their driver’s percentage.
Every California driver must carry at least $15,000 in property damage liability per accident.6California Department of Insurance. Automobile Coverage Limits That minimum rose from $5,000 as of January 2025.7California Department of Insurance. New Year Means New Changes for Insurance A minor scrape may fit inside $15,000; serious damage to a newer vehicle often doesn’t. If the at-fault policy runs out before your repairs are covered, you can file against your own collision coverage or pursue the at-fault party in court for the shortfall.
Medical bills from dooring injuries can be paid through MedPay, which covers regardless of fault but is optional in California. Without MedPay, health insurance or a personal injury claim against the at-fault party are the remaining routes.
Insurance adjusters weigh the police report, witness statements, and damage patterns before deciding. If the outcome is wrong, you can negotiate, file a complaint with the California Department of Insurance, or sue. For property damage cases up to $12,500, small claims court is efficient and doesn’t require a lawyer.8California Courts. The Small Claims Process Larger claims go through regular civil court.
The 10-Day DMV Report
If the accident caused more than $1,000 in property damage, any injury, or a death, every driver involved must file an SR-1 form with the California DMV within 10 days.9California Legislative Information. California Code VEH 16000 – Report of Accidents This is separate from any police report at the scene. It applies to every driver, not just the at-fault one, and skipping it can lead to a license suspension.
Most open-door collisions clear the $1,000 threshold once body panel repair, paint, and labor are added up. Get an estimate before assuming you can skip the filing.
Traffic Tickets Are Separate
Opening a door unsafely into traffic is a citable infraction under Vehicle Code 22517, whether or not a collision follows.1California Legislative Information. California Code VEH 22517 – Opening and Closing Vehicle Doors The base fine is modest, but California’s penalty assessments, state surcharges, and court fees push the all-in total into the range of a few hundred dollars. If the door-opening caused an accident, officers may add citations for related violations. The ticket doesn’t resolve civil liability for damages; it stacks on top.
When Criminal Charges Come In
Most dooring cases stay in traffic and insurance territory. Criminal charges appear when someone is seriously hurt or killed, or when the act was intentional.
Vehicular Manslaughter
Penal Code 192(c) covers deaths caused by driving a vehicle while committing a traffic violation or performing a lawful act negligently.10California Legislative Information. California Code Penal Code 192 – Manslaughter The statute refers to “driving a vehicle,” which creates some legal uncertainty about whether it reaches opening a door while parked. Whether a prosecutor charges it in a dooring fatality depends on the facts. With gross negligence, the sentence is two, four, or six years in state prison; without it, up to one year in county jail.11California Legislative Information. California Code PEN 193 – Punishment for Manslaughter
Intentional Acts
Deliberately opening a car door to hurt someone is no longer negligence. Penal Code 245, assault with a deadly weapon, can apply when a vehicle or door is used as a weapon, carrying two, three, or four years in state prison, or up to a year in county jail, plus fines up to $10,000.12California Legislative Information. California Code PEN 245 – Assault With Deadly Weapon In extreme cases involving road rage or an intent to kill, prosecutors can add attempted murder under Penal Code 664/187. An intentional act also opens the door to a civil suit, and a criminal conviction makes the civil case much easier to prove.
Lawsuit Deadlines
California gives you two years from the accident date to file a personal injury lawsuit.13California Legislative Information. California Code CCP 335.1 – Statute of Limitations for Personal Injury Property damage claims get three years.14California Legislative Information. California Code CCP 338 – Statute of Limitations for Property Damage Miss either deadline and the court will throw the case out, whatever the evidence looks like. These deadlines govern lawsuits, not insurance claims, but letting an insurance dispute drag on without watching the litigation clock is one of the most expensive mistakes people make after an accident.