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Steps to Take After a Commercial Truck Accident in Illinois

Steps to Take After a Commercial Truck Accident in Illinois

July 27, 2026 | Collins Law Group

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Key Takeaways

  • Illinois law requires drivers in injury crashes to stop, remain at the scene, and report the crash (625 ILCS 5/11-401, 5/11-406).
  • Get medical care the same day and document everything, because gaps in treatment become insurance company talking points.
  • Trucking evidence disappears quickly, so having a lawyer send a preservation letter early can decide the case.

The most important steps to take after a commercial truck accident in Illinois are these: get to safety and call 911, meet your legal duties at the scene, get medical care the same day, document everything you can, and have a lawyer send an evidence preservation letter before the trucking company’s records disappear. Whether your crash happened on the Dan Ryan, I-80 near Joliet, or a suburban arterial, the first week usually decides what evidence your case will have. This guide walks through each step in order.

The Most Important Steps to Take After a Commercial Truck Accident in Illinois

If you remember nothing else, remember this checklist. Move to safety and call 911. Meet your legal duties at the scene. Get medical care right away and document your injuries. Gather evidence if you are able. Have a lawyer send a preservation letter before trucking records disappear. Be cautious with insurance adjusters, and involve an attorney early. The sections below explain each step and why it matters in a commercial truck case.

Step 1: Put Safety First and Call 911

Your first priority is safety, not paperwork. If you can do so safely, move yourself and your passengers away from traffic, because secondary collisions around a jackknifed or stalled truck are a real danger. Turn on your hazard lights and stay clear of any leaking fuel or spilled cargo.

Then call 911, even if you think your injuries are minor. A 911 call brings paramedics who can evaluate everyone involved, and it brings law enforcement to the scene. In a commercial truck crash, having police respond, investigate, and document the wreck is one of the most valuable things that can happen for your future claim.

Step 2: What Does Illinois Law Require After a Truck Crash?

Illinois law imposes duties on every driver involved in a crash, including you. Under 625 ILCS 5/11-401, the driver of any vehicle involved in a crash that results in personal injury or death must immediately stop at the scene and remain there until the Vehicle Code’s requirements are met. A driver who leaves must report the crash to police as soon as possible, and no later than half an hour after the crash, or within half an hour after being discharged from the hospital if the driver needed emergency treatment. Failing to stop and remain at the scene of an injury crash is a felony.

Illinois also requires a written crash report. Under 625 ILCS 5/11-406, a driver involved in a crash causing injury, death, or property damage to any one person over $1,500 (or over $500 if an uninsured vehicle is involved) must forward a written report within 10 days. The Illinois State Police crash report page explains that this self-reporting duty applies when police did not attend the scene, and it also explains how to obtain a copy of the official crash report online or by mail once one exists. After a serious truck wreck, officers will almost always respond and prepare a report, and getting a copy of it is one of the practical steps to take after a commercial truck accident in Illinois.

While you are at the scene, exchange information with the truck driver just as you would after any collision. In addition to a name, license, and insurance details, note the trucking company’s name and the USDOT number painted on the cab, since the company behind the driver usually matters as much as the driver.

Step 3: Get Medical Care and Document Your Injuries

See a doctor the same day if possible, even if you walked away from the crash. Adrenaline masks pain, and injuries like concussions, internal bleeding, and spinal damage can take hours or days to reveal themselves. Prompt care protects your health first, and it also creates medical records that tie your injuries to the crash.

Follow through on treatment. Keep every appointment, fill every prescription, and follow your doctors’ restrictions. Keep a simple file with discharge papers, bills, and receipts, and consider keeping a short daily journal describing your pain and what activities you can no longer do. Gaps in treatment are one of the first things insurers point to when they argue an injury was not serious.

Step 4: Gather Evidence at the Scene If You Can

If your injuries allow, use your phone to photograph everything: vehicle positions, damage to each vehicle, skid marks, debris, spilled cargo, road and weather conditions, traffic signs, and your visible injuries. Take wide shots that show the whole scene and close-ups that show detail.

Ask witnesses for their names and phone numbers before they drive away, because independent witnesses are often impossible to find later. Note nearby businesses or homes that might have cameras pointed at the road. If you are too badly hurt to do any of this, do not worry. A lawyer and investigators can reconstruct much of it, especially if they get involved early.

Step 5: Send a Preservation Letter Before Trucking Evidence Disappears

Here is what makes truck cases different from ordinary collisions: the most important evidence usually belongs to the trucking company, and much of it is not kept for long. Federal rules generally require carriers to retain a driver’s electronic logging device records of duty status and supporting documents for at least six months. Other records, like the truck itself, its onboard data, and dashcam video, can be repaired, overwritten, or lost far sooner than that.

That is why one of the most important steps to take after a commercial truck accident in Illinois is having a lawyer send a preservation letter, sometimes called a spoliation letter, to the motor carrier and its insurer. The letter demands that the company preserve the truck, its electronic data, driver logs, inspection records, and related evidence, and it puts the company on notice that destroying them can have serious consequences in court. Every week of delay is a week in which valuable evidence can legally age out of existence.

Step 6: Be Careful When the Insurance Company Calls

Expect a call from the trucking company’s insurer quickly, sometimes within a day or two. The adjuster may sound friendly and may offer a fast settlement. Remember that the adjuster works for the trucking company’s insurer, and the goal of an early recorded statement or quick check is usually to limit what the company pays, not to help you.

You are not required to give a recorded statement to the other side’s insurer, and you should not sign medical authorizations or releases without advice. Early offers rarely account for future surgeries, lost earning capacity, or long-term care. We covered these tactics in detail in our post on the 6 secrets insurance companies don’t want you to know about your personal injury claim, and they apply with extra force in truck cases, where the money at stake is larger.

When Should You Involve a Truck Accident Lawyer?

The short answer is as soon as possible after you have received medical care. Truck crash claims move fast on the defense side, involve multiple companies and layers of insurance, and turn on evidence that begins disappearing immediately. An experienced Illinois truck accident lawyer can send preservation letters, identify every responsible party, deal with the insurers, and value your claim properly, all while you focus on healing. The steps to take after a commercial truck accident in Illinois all point in the same direction: protect your health, follow the law, and get the evidence locked down before it is gone.

A real example from our firm’s practice: our client was rear-ended by a tractor-trailer on I-55 in winter weather and was recommended for spine surgery. We recovered a $900,000 settlement. Every case is different, and past results do not guarantee future outcomes.

Frequently Asked Questions

What are the first steps after a commercial truck accident in Illinois?

Move to safety and call 911, meet your legal duties at the scene, get medical care immediately, gather evidence if you can, and involve a lawyer early so trucking company records are preserved before they disappear.

Do I have to report a truck accident in Illinois?

Yes. Drivers must stop and remain at the scene of an injury crash, and a written report is required within 10 days for crashes involving injury, death, or property damage over $1,500 (or $500 if an uninsured vehicle is involved) when police did not attend the scene.

When should I hire a truck accident lawyer?

As soon as possible after getting medical care. Federal rules let carriers destroy key records after months, and preservation letters only protect evidence that still exists.

Talk to an Illinois Truck Accident Lawyer

If you or someone you love was injured in a crash with a semi truck or other commercial vehicle, Collins Law Group, P.C. can take it from here. Our team investigates the crash, preserves the trucking company’s records, handles the insurers, and pursues full compensation for your injuries and losses. We offer free consultations, so it costs nothing to learn where you stand and what your claim may be worth. Contact Collins Law Group today and let us shoulder the legal fight while you focus on your recovery.

About the Author

John D. Risvold is an equity partner at Collins Law Group, P.C. in Naperville, Illinois. He represents individuals and families in catastrophic personal injury and wrongful death cases, focusing on commercial trucking crashes, rideshare and autonomous vehicle litigation, medical malpractice and birth injury, and product defect claims. He has tried cases to verdict in Illinois courts, recovered more than $50 million for clients over thirteen years of practice, and has been named to Best Lawyers in America for Personal Injury Litigation and Illinois Super Lawyers.

This article is for general information only and is not legal advice. Reading it does not create an attorney-client relationship. Every case is different; if you have been injured, speak with a lawyer about your specific situation.

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