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What to Do After a Car Accident in California (Step-by-Step Guide)


Knowing what to do after a car accident in California can be the difference between a settled claim and a financial nightmare. Most people who lose money after an accident don't lose it in court — they lose it in the first 24 hours. A misplaced word to an adjuster. A missing photograph. A text that seemed harmless. An admission that wasn't really an admission — until it was used against them.

California roads see millions of collisions every year. The insurance industry has teams of adjusters, investigators, and attorneys working to minimize what they pay out. You have this guide.

Bigfirmlit is a non-attorney, self-help legal document preparation service registered as a Legal Document Assistant in California. We prepare documents at your direction. We are not attorneys and cannot provide legal advice, represent you in court, or tell you what the law means in your specific situation.


Step 1 — Safety First: Move to Safety and Call 911

Your first priority is not documentation. It is survival.

Immediately after the collision:

  • If the vehicle is drivable and it is safe to do so, move it to the shoulder or a nearby parking lot to clear the road.
  • Turn on your hazard lights.
  • Check yourself and any passengers for injuries. Do not assume you are unhurt because you feel okay — adrenaline masks pain. Whiplash, soft tissue injuries, and traumatic brain injuries may not be apparent for hours or days.
  • Call 911. In California, you are legally required to report any accident involving injury, death, or property damage over $1,000 to the California Department of Motor Vehicles within 10 days (SR-1 form). Calling 911 and getting a police report is the fastest way to satisfy your legal obligations and create an official record.

At the scene:

  • Do not admit fault. Do not say "I'm sorry." Even a reflexive apology can be documented by the other driver and used to assign liability.
  • Do not move injured persons unless there is immediate danger — you could worsen spinal injuries.
  • If the other driver is hostile or the scene is unsafe, stay in your locked car and wait for police.

Step 2 — Exchange Information

While waiting for police (or before they leave), collect the following from every driver involved:

  • Full legal name and home address
  • Driver's license number and issuing state
  • License plate number
  • Vehicle make, model, year, and color
  • Insurance company name and policy number
  • Phone number

Also collect contact information from all witnesses — not just names and numbers, but also what they saw. Witness accounts disappear fast. A witness who says "the light was green for you" today may be unreachable in two weeks.

Photograph the other driver's license, insurance card, and registration before you leave the scene. Memory fades. Paper gets lost. Photos don't lie.


Step 3 — Document Everything

The insurance adjuster assigned to your claim will look for every reason to reduce your payout or deny it entirely. Your documentation is your counterweight.

At the scene:

  • Photograph every vehicle from multiple angles — wide shots showing relative positions, close-ups of all damage
  • Photograph skid marks, debris, road conditions, traffic signs, and signals
  • Photograph any visible injuries (bruising, cuts, airbag burns)
  • Take a video walkthrough of the scene narrating what you observe
  • Note weather conditions, time of day, and road surface

After the scene:

  • Get the police report number from the responding officer. You can obtain the full report — typically within 5–10 business days — from the California Highway Patrol (CHP) or the responding local police department.
  • Keep a daily injury journal starting the day of the accident. Note pain levels, symptoms, and how the injury affects your daily activities. This documentation is critical for pain and suffering claims.
  • Collect and organize all medical records and bills — emergency room visits, urgent care, chiropractic, physical therapy, imaging (MRI, X-ray), prescription medications.
  • Keep receipts for all out-of-pocket expenses related to the accident: transportation to medical appointments, rental car costs, vehicle storage fees.

Step 4 — Notify Your Insurance Company (But Not Yet a Recorded Statement)

You must notify your own insurance company promptly after an accident — even if you were not at fault. Failing to do so can affect your coverage.

Do this:

  • Call your insurer and report the accident with basic facts: date, location, vehicles involved, whether there were injuries.
  • Ask what coverage you have: collision, liability, uninsured/underinsured motorist (UM/UIM), medical payments (MedPay).
  • File a claim if appropriate.

Do not do this:

  • Do not give a recorded statement to the other driver's insurance company without fully understanding your rights and the facts of your case. Adjusters are trained interviewers. A recorded statement is a permanent record that can and will be used to limit your claim.
  • Do not accept a quick settlement from the other driver's insurer before you know the full extent of your injuries. Once you sign a release, you cannot go back for more money — even if you discover months later that your injuries were more serious than you knew.

Step 5 — Know Your Rights Under California Law

California has specific rules that govern who pays after a car accident.

California is a pure comparative fault state. Under California Civil Code §1714, each party is responsible for their proportionate share of fault. If you are found 30% at fault and the other driver 70%, you can still recover 70% of your damages. Insurance companies know this — and they will argue for the highest fault percentage against you possible.

Uninsured and underinsured motorist coverage (UM/UIM): California requires insurers to offer UM/UIM coverage. If you were hit by an uninsured driver — or a driver whose coverage is insufficient to cover your damages — your own UM/UIM policy steps in. California Insurance Code §11580.2 governs these claims. Check your policy now, before you need it.

Statute of limitations: Under California Code of Civil Procedure §335.1, you have two years from the date of the accident to file a personal injury lawsuit. If you wait longer, you are almost certainly barred from recovery. Do not assume time is on your side. Witnesses forget, evidence disappears, and insurers know exactly how to wait you out.

Property damage claims are governed by a separate three-year statute of limitations under CCP §338.


Step 6 — When the Insurer Won't Pay: Use a Demand Letter

Many accident claims settle without litigation. But many do not — because the insurer lowballs the offer, disputes liability, delays the claim, or denies it outright.

When that happens, a formal demand letter is your next move.

A demand letter:

  • Puts the insurer on written notice of your claim and the full amount you are demanding
  • Documents your injuries, treatment, lost wages, property damage, and pain and suffering
  • Establishes a paper trail showing you made a good-faith attempt to resolve the dispute before filing suit
  • Sets a response deadline that, if missed, strengthens your position in any subsequent litigation or arbitration

Insurers take formal written demand letters seriously. An informal email or phone call does not carry the same weight. A properly formatted demand letter, citing the accident facts, your damages, and the applicable California law, tells the insurer you are organized, you know your rights, and you are prepared to escalate.


Get Your Demand Letter Prepared by Bigfirmlit

If your insurer is dragging its feet, disputing liability, or offering less than your claim is worth, a professionally formatted demand letter is your first formal step toward a fair resolution.

Order the Demand Letter Packet — CA Edition — $129

Bigfirmlit prepares demand letters for self-represented individuals dealing with insurance disputes, property damage claims, personal injury claims, and more — formatted for California, ready to send.

Bigfirmlit is a non-attorney, self-help legal document preparation service registered as a Legal Document Assistant in California. We prepare documents at your direction. We are not attorneys and cannot provide legal advice, represent you in court, or tell you what the law means in your specific situation.


5 Common Mistakes People Make After a California Car Accident

Avoid these — they are the most common reasons valid claims get denied or undervalued:

  1. Admitting fault at the scene. Even "I didn't see you" can be framed as an admission. Say as little as possible to the other driver.
  2. Not calling the police. Without a police report, it becomes your word against theirs. Always call 911 and get a report number.
  3. Delaying medical treatment. Waiting days or weeks to see a doctor gives the insurer grounds to argue your injuries weren't accident-related. Seek evaluation immediately, even if you feel okay.
  4. Giving a recorded statement to the adverse insurer. This is almost never in your interest without legal or document preparation support. Politely decline and ask for the request in writing.
  5. Accepting the first settlement offer. The first offer is almost never the best offer. It is a lowball figure designed to close your file before you understand the full value of your claim. Get the complete picture of your damages before you sign anything.

Frequently Asked Questions

How long does it take to get a police report after a California car accident?

California Highway Patrol (CHP) reports typically become available within 7 to 10 business days after the accident. Reports from local police departments may take slightly longer. You can request a copy in person, by mail, or (in many jurisdictions) online. There is usually a small fee. The report number given to you at the scene will help you locate it faster.

Is California an at-fault or no-fault state for car accidents?

California is an at-fault state — not a no-fault state. This means the driver who caused the accident is financially responsible for damages. The injured party can file a claim against the at-fault driver's liability insurance, their own insurance (if applicable), or file a civil lawsuit. California's pure comparative fault rule means you can recover even if you were partially at fault — your damages are simply reduced by your percentage of fault.

Should I go to small claims court or file a civil lawsuit after a car accident?

For property damage only involving amounts up to $12,500 (the small claims limit for individuals as of 2024 under CCP §116.220), small claims court is a fast and affordable option. For personal injury claims, larger property damage, or complex liability disputes, you would need to file in limited or unlimited civil court depending on the amount. An accident with serious injuries almost always requires a civil court filing rather than small claims.

What if the driver who hit me was uninsured?

California requires all drivers to carry minimum liability insurance, but millions drive uninsured. If you have uninsured motorist (UM) coverage on your own policy (California Insurance Code §11580.2), you can file a claim with your own insurer. If you don't have UM coverage, you can file a civil lawsuit against the uninsured driver — but collecting on a judgment against someone with no assets or insurance is a practical challenge. File a DMV SR-1 report within 10 days and consult your policy documents immediately.

Do I need a lawyer to send a demand letter after a car accident?

No. A demand letter is a self-help tool that any injured party can use. Bigfirmlit prepares demand letters for self-represented individuals throughout California. A properly formatted demand letter presents your claim in writing, documents your damages, and sets a deadline for a response — giving you a formal record before you escalate to litigation or arbitration. It does not require an attorney to draft, and in many cases, a strong demand letter resolves the dispute without any court involvement at all.


Protect Your Claim — Start With the Right Documents

The clock is running on two things simultaneously: your statute of limitations under CCP §335.1 (two years) and the insurer's effort to close your file on their terms. Don't let either one expire before you've protected yourself.

Order the Demand Letter Packet — CA Edition →

Also see our guides on writing a demand letter in California and crafting an effective settlement demand in California.

Bigfirmlit is a non-attorney, self-help legal document preparation service registered as a Legal Document Assistant in California. We prepare documents at your direction. We are not attorneys and cannot provide legal advice, represent you in court, or tell you what the law means in your specific situation.

Take the first step while the evidence is still fresh and your options are still open.

Not Legal Advice

Bigfirmlit is a non-attorney document preparation service. We do not provide legal advice or represent clients. For legal advice, consult a licensed California attorney or a legal aid organization in your county.

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