Call For A Free Consultation(602) 345-1818Free Case Review
-
Cities Served
-
T-Shirt Lawyer
Fighting Suits,
Not Wearing Them.Enter the universeStories, animation and community. Created by Impact Legal.
Call For A Free Consultation(602) 345-1818Free Case Review
Fighting Suits, Stories, animation and community. Created by Impact Legal.
We're Here To Help 24/7
(602) 345-1818A car door swings open. You have maybe half a second. There is no good outcome from there: you hit the door, you lay the bike down, or you swerve into the next lane and into traffic.
Then the hard part starts. A motorcycle dooring accident claim in Arizona rarely comes down to one obviously responsible person. Insurers pick apart where you were in the lane, how fast you were going, and whether the door was already open when you got there. This page walks through who can be held responsible, how lane position changes the fault analysis, what evidence decides these cases, and how Arizona’s comparative fault statute turns fault percentages into dollars. It is general information about Arizona law, not advice about any specific crash, and the facts of your situation can change every answer below.
A dooring accident happens when someone in a parked or stopped vehicle opens a door into the path of a passing motorcyclist. The rider gets little or no reaction time. The door becomes a fixed obstacle at chest or handlebar height in a space that was clear a moment earlier.
It happens most often on streets where parallel parking sits right against a travel lane. Central Phoenix, downtown Tempe, Roosevelt Row, and older Mesa corridors all have that setup. It also happens in parking lots, at curbside rideshare pickups, and along loading zones where drivers and passengers exit without checking traffic.
Motorcyclists are exposed in a way drivers are not. The National Highway Traffic Safety Administration’s motorcycle safety materials describe why crash forces a car occupant absorbs through structure and restraints get absorbed by the rider’s body instead (NHTSA, Motorcycles). A door strike that would dent a fender can throw a rider over the bars.
Dooring is often written about as a single-defendant event. In practice there are usually two separate conduct questions on the table, and sometimes both produce liability.
The person who opened the door. Arizona negligence law requires people to use ordinary care toward others already lawfully using the road, and that includes looking before putting a door into a lane of travel. If a specific Arizona traffic-code provision applies to the door opening in a given case, an attorney can identify it, confirm the current text, and apply it to the facts. That is not something to guess at from a webpage. What we can say generally is this: whether a particular door-opener breached the duty of care, and whether that breach caused the injuries, are fact questions decided on the evidence, not automatic results. It also does not matter for duty purposes that the door-opener was a passenger rather than the driver. A passenger who throws a door open owes the same basic care to people already in the lane.
The vehicle that was passing. A second theory often exists alongside the first. A car that squeezes past a row of parked vehicles too closely, or that follows a rider so tightly that it clips the bike after the rider brakes for a door, has its own exposure. Same goes for a driver who crowds the rider toward the parked cars. Insurers raise this in reverse, too. They argue the rider was hugging the door zone or passing parked cars faster than conditions allowed, and that the rider’s own conduct is a comparative fault factor.
Fault splitting across multiple actors is common in motorcycle cases generally, including lane-position disputes like the ones we cover in lane splitting accidents in Phoenix. Dooring works the same way. Two theories can be pursued at once, and both can carry weight.
There is a third possibility worth checking early. If the door-opener carries no liability insurance, or a minimum policy that will not cover a serious orthopedic injury, your own uninsured motorist coverage may be the realistic source of payment. That depends entirely on your policy language, so pull the declarations page before assuming anything.
This is where dooring claims tend to be won and lost.
Adjusters reconstruct where in the lane the bike was traveling. Riding close to the parked-car line puts you inside the swing radius of every door you pass. Riding the center or left third of the lane gives you distance and sight lines, and it puts you where a driver checking a mirror is more likely to register you. So your lane position at the moment the door opened does two things. It shapes the physical geometry of the impact, and it shapes the argument about whether the door-opener could have seen you before committing.
Visibility runs both directions. A door-opener who never checked a mirror has a weak argument built on your position, because they were not looking anywhere. But if a mirror was checked and you were in a blind spot created by a following vehicle, a truck bed, or a sharp approach angle, the door-opener’s insurer will lean on that hard.
NHTSA’s Special Crash Investigations program describes combining crash-scene inspection, vehicle examination, occupant and witness interviews, police and medical records, and available event data to reconstruct a crash (NHTSA, Special Crash Investigations). Civil cases draw on similar inputs. Be clear-eyed about what that produces, though. Sight-line and blind-spot conclusions are expert opinion, not settled fact, and the other side can retain its own expert to reach a different conclusion. Good documentation gives your expert something solid to work from. It does not make the question uncontested. For a broader look at that process, see how fault is proven in Phoenix cases.
A note on rider equipment, since insurers raise it. A.R.S. § 28-964 requires helmets for operators and passengers under 18. It also requires operators to wear protective glasses, goggles, or a transparent face shield of a type approved by the director, unless the motorcycle has a protective windshield, and the statute contains exceptions plus a limitation on who may be cited. So “adults do not need helmets” is accurate as far as helmets go, but it is not the whole equipment rule. None of it changes who opened the door. Equipment arguments go to injury severity, not to who caused the crash.
Dooring cases go stale fast. The door closes, the car drives off, the street looks normal again, and within a week the only proof left is what someone captured in the first few days.
Camera footage. Doorbell cameras, business security systems, parking garage cameras, transit cameras, and dashcams on nearby vehicles are often the strongest evidence available. Many systems overwrite on a loop, and retention windows vary by device, so each camera has to be identified and requested individually rather than assumed. If a business faces the crash location, someone needs to ask for that footage now, in writing. An evidence preservation letter does that formally, and our page on how to preserve surveillance video after an accident covers the mechanics.
Vehicle data. Passing or striking vehicles may store event data recorder information relevant to speed, braking, and following distance. Dashcams may hold the entire sequence. Whether any of that data exists, and whether it can be pulled, depends on the specific vehicle and device. Retention and overwrite behavior differ across makes and models, so the vehicle has to be identified and the data secured before the car is repaired or sold. That is one reason to preserve a vehicle inspection early.
Witnesses and the 911 timeline. Bystanders in dooring cases often see the door swing. Get names and numbers at the scene if you can move. The 911 call time and dispatch log matter too, because they anchor when the crash occurred against timestamped camera footage.
Physical evidence. Photograph the door in its post-impact position before anyone closes it. Photograph the door edge, the dent pattern, the paint transfer, and the height of the damage against the bike. Photograph scuff or skid marks and their distance from the parked car. Damage height and paint transfer are what a reconstructionist later uses to opine on whether the door was open, how far, and at what point of contact. Accident reconstruction evidence often turns on those photos.
Arizona uses comparative fault. Under A.R.S. § 12-2505, damages are reduced in proportion to the claimant’s share of fault, and ordinary negligence by the claimant does not by itself bar recovery (Arizona Legislature, A.R.S. § 12-2505). The statute also provides that there is no right to comparative negligence in favor of a claimant who has intentionally, wilfully, or wantonly caused or contributed to the injury. In plain terms, that claimant loses the benefit of proportional reduction, and recovery can be barred outright. The statute further makes the existence of contributory fault a question of fact for the jury in all cases.
The math for an ordinary negligence case is straightforward. Total damages multiplied by (100% minus your fault percentage) is your recovery. If a claim is valued at $200,000 and a factfinder assigns you 20% of the fault, that produces $160,000. At 40% fault, $120,000. Those numbers are arithmetic illustrations only, not a prediction about any real claim. The percentage matters because it is the largest single lever the other side has, which is why adjusters press so hard on lane position and speed.
The injury pattern reflects the mechanics: sudden stop, ejection, ground contact. NHTSA’s motorcycle safety guidance describes the exposure that drives this (NHTSA, Motorcycles).
Some of this is obvious at the scene. Some is not. Head injury symptoms in particular can surface late, which we cover in our page on delayed concussion symptoms. Get evaluated the same day if you can, and follow up when something new appears. Gaps in treatment become a causation argument later.
If an insurer unreasonably delays or denies a valid claim, that handling may itself give rise to a separate claim. Insurance bad faith in Phoenix explains the general framework. Whether any particular denial crosses that line is fact-specific and often disputed.
For a claim against a private person or business in Arizona, a two-year limitations period generally applies to personal injury claims after the claim accrues, under A.R.S. § 12-542. Accrual, discovery, and tolling rules can move that date.
Government claims are different, and the difference is easy to get wrong. If a public entity, public school, or public employee is involved (a city vehicle, a transit vehicle, a public employee opening a door on the job), two separate deadlines apply. A written notice of claim must be filed within 180 days after the cause of action accrues under A.R.S. § 12-821.01, and suit must be filed within one year after accrual under A.R.S. § 12-821. Not two years. One.
There are express exceptions. Under A.R.S. § 12-821.01(D), a minor or a person who is insane or incompetent may file the notice of claim within 180 days after the disability ceases. Subsection (C) delays accrual where a mandatory dispute-resolution or administrative process applies. A child’s own claim and a parent’s derivative claim are not necessarily on the same clock. If any of that might fit your situation, do not assume you are out of time based on a general rule you read online.
Treat these dates as something to verify, not estimate. Camera footage disappears in weeks, long before any deadline runs. More on timing sits in our page on filing an auto accident claim in Arizona.
No. The door-opener is usually the primary target, because Arizona negligence law expects people to use ordinary care before opening into a lane of travel. But breach and causation are fact questions, and a rider’s lane position or speed, or a passing vehicle’s conduct, can shift part of the fault. Under A.R.S. § 12-2505, whatever percentage lands on you reduces your recovery proportionally.
A passenger owes the same basic duty of care to traffic already in the lane. The claim runs against the passenger’s negligence, and depending on the facts and the policy language, the vehicle’s liability coverage may or may not respond. Coverage questions here are policy-specific and need a look at the actual policy.
A.R.S. § 28-964 requires helmets for riders under 18. It separately requires operators to wear protective glasses, goggles, or a transparent face shield of a type approved by the director, unless the motorcycle has a protective windshield, with statutory exceptions. Riding without a helmet as an adult does not make you responsible for a door opening into your lane. Insurers may still argue equipment affected the extent of head injuries, which is a damages argument rather than a liability one.
Fast. Many residential and business systems overwrite on a loop, and some retain very little. Retention varies by device, so each camera has to be identified and requested individually. A written preservation request is the practical tool for this.
Possibly. For ordinary negligence, Arizona reduces damages by your fault percentage rather than cutting off recovery, so riding in the door zone may reduce a recovery without eliminating the claim. Note the limit, though: under A.R.S. § 12-2505 there is no right to comparative negligence in favor of a claimant who intentionally, wilfully, or wantonly caused or contributed to the injury, and in that situation recovery can be barred entirely. You also still have to prove liability, causation, and damages, and there has to be coverage or assets to collect from.
Then your own uninsured or underinsured motorist coverage may be the realistic source of payment. Whether it applies depends on your policy terms and the specific facts, so pull your declarations page and have the coverage reviewed.
Dooring claims turn on details that disappear quickly: a camera loop, a door position, a passing driver nobody wrote down. If a door put you on the pavement in Phoenix, get the evidence question answered before an adjuster frames the fault question for you.
Free case review with Jared J. Pehrson: (602) 345-1818. We answer 24/7. Attorney’s fees are contingent, meaning no attorney’s fee unless we recover, and the fee percentage and how case costs are handled are set out in a written agreement you sign before anything starts. Reading this page does not create an attorney-client relationship, and the general rules described here may apply differently to your facts.
By Jared J. Pehrson | Impact Legal Car Accident Attorneys
A free conversation can help you understand your next step.