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What to Do Immediately After a Truck Accident?

Written by Dormer Harpring reviewed by KC Harping. September 8, 2025Truck Accidents

When a large truck is involved in a crash, the damage can be extensive, especially in a fast-moving city like Denver. Heavy traffic, narrow lanes, and large vehicles all contribute to the risk. Between the physical pain and unexpected medical bills, it’s easy to feel lost. At Dormer Harpring, we’ve worked with people facing exactly this—and we know how important it is to offer not just legal help, but real support when it’s needed most.

In those first moments after a crash, it’s easy to feel unsure about what to do. Yet your actions can shape the outcome of your recovery and any future claims. Preserving evidence, seeking medical help, and knowing who to speak with can all help ease the burden. If a truck accident has affected your life, taking the right steps early can make a big difference.

Truck Accident

Step-by-Step Guide

Following a truck accident, what you do next can significantly impact your safety, legal standing, and ability to pursue a claim. Responding quickly and intentionally helps reduce risk, meet legal obligations under Colorado law, and protect evidence that may be crucial later. Acting early also makes it easier to identify liability, document what happened, and avoid potential complications with insurance or legal proceedings.

Ensure Safety

Move your vehicle out of traffic if it’s safe to do so. If the vehicle can’t be moved, turn on your hazard lights to warn other drivers and minimize the risk of further impact. Stay alert and visible, avoiding blind spots and standing between vehicles, especially on highways or high-traffic roads. When possible, place reflective triangles or flares to mark the scene and create a buffer zone. Try to stay in a location where you’re protected but still able to monitor the situation. 

Remaining calm and focused helps prevent further danger, keeps the scene as secure as possible, and allows emergency responders to reach you more safely and efficiently once they arrive.

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Check for Injuries

Check yourself, your passengers, and others involved for injuries. Some injuries might not be immediately obvious, especially with the adrenaline that follows a collision. Look for signs like dizziness, confusion, pain, or restricted movement, which could indicate hidden trauma.

If anyone is hurt or unconscious, call emergency services right away. Time matters, especially in head or spinal injuries, and prompt medical attention could be the difference between full recovery and long-term consequences. Stay on the line with dispatchers until help arrives, and provide updates if anyone’s condition changes.

Call 911 

Even if the collision seems minor, always call 911. It’s not only for your safety—it’s also required by Colorado law. According to Colorado Revised Statutes Section 42-4-1601, any driver involved in a crash that results in injury, serious bodily harm, or death must remain at the scene and report the incident to law enforcement.

First responders can assess the situation, provide immediate care, and determine if anyone needs emergency transportation. Prompt medical attention can make a critical difference, especially with injuries that aren’t immediately visible.

Additionally, the police will complete an official report, which may become key evidence in filing an insurance claim or pursuing legal action. Having this documentation can strengthen your case and help clarify fault when liability is disputed.

Exchange Information with the Other Party

Collect the other driver’s full name, phone number, address, driver’s license number, and insurance information. Double-check the details for accuracy and take photos of any documents if possible.

If the other party is a commercial truck driver, get the name and contact details of their employer or the company that owns the truck. Note any identifying company logos or vehicle numbers on the truck itself. Write down the make, model, license plate number, and vehicle identification number (VIN) of each vehicle involved. Be as thorough as possible, since this information can support future investigations or claims.

Speak to bystanders or passengers who saw the crash. Request their names and contact information in case their testimony is needed later. Witness statements can be crucial in complex liability disputes, especially if accounts from drivers differ or fault is unclear.

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Gather Evidence at the Scene

Use your smartphone to document everything thoroughly, including:

  • Vehicle positions and damage
  • Road conditions and signage
  • Skid marks or debris
  • Weather and lighting conditions
  • Any visible injuries

Take wide-angle shots to show the overall scene and close-ups for specific damage or hazards. Be sure to note the time, date, and exact location of the crash. Include street names, nearby landmarks, and any unusual road conditions like potholes or obstructed signage that may have contributed.

If the truck driver appears distracted, impaired, or overly aggressive, record this discreetly. Details like slurred speech, erratic behavior, or the smell of alcohol can be important in proving negligence later. The more evidence you can collect in the moment, the stronger your case will be when it’s time to pursue compensation.

Seek Medical Attention

Even if you feel fine, see a doctor as soon as possible. Delayed symptoms from soft tissue injuries or concussions are common in truck accidents. Injuries like whiplash, internal bleeding, or traumatic brain injuries may not appear until hours or days later, but early diagnosis is key.

A doctor’s report creates an official medical record. This strengthens any personal injury claim by connecting the crash directly to your condition. It also helps establish a timeline that insurance adjusters or courts can reference when evaluating your claim.

Keep up with all recommended treatments, including physical therapy or specialist visits. Following medical advice consistently shows that you’re taking recovery seriously. Skipping care can weaken your case, delay healing, and give insurers a reason to dispute the extent of your injuries.

Notify Your Insurance Company

Contact your insurance provider to report the crash as soon as possible. Stick to the basic facts and avoid speculating or assigning blame. Be careful not to say anything that could sound like an admission of fault, even in casual conversation. Colorado follows a modified comparative negligence rule, which means your compensation can be reduced or denied if you’re found to be partially at fault for the accident.

If a representative from the other driver’s insurance company reaches out, politely decline to speak with them until you’ve consulted with an attorney. Never agree to a recorded statement without legal advice.

According to the Colorado DMV, any accident involving injury, death, or substantial property damage must be reported to law enforcement promptly. The resulting police report and your medical documentation will be crucial in proving liability and securing fair compensation.

Speak with a Colorado Truck Accident Lawyer

A truck accident often involves complex legal and insurance challenges that can be difficult to manage without experienced guidance:

  • Multiple potentially liable parties, including the driver, their employer, or maintenance contractors
  • Commercial insurance carriers with large policies and aggressive legal teams
  • Strict federal and Colorado regulations governing commercial transportation

Legal support is crucial in identifying all sources of liability, preserving critical evidence, and handling negotiations with insurers. Acting without representation can leave you vulnerable to undervalued claims, delayed payouts, or disputes over fault that could limit your ability to recover full compensation.

Sean Dormer

Denver Personal Injury Attorney
Fighting for Justice, Winning Against the Odds

Sean Dormer has built his career on standing up to powerful corporations and insurance companies to get justice for the injured. With a relentless trial-focused approach, he has secured multi-million-dollar verdicts and settlements for clients who were turned away by other firms. His expertise has led him to speak at statewide legal conferences and advocate for fairer personal injury laws in Colorado.

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Need Help After a Truck Accident in Denver?

If you’ve been involved in a truck accident in Denver, it’s important to act without delay. Waiting too long can affect your health, delay treatment, and make it harder to secure compensation. The earlier you begin taking steps, the better your chances of building a strong legal case. Dormer Harpring is here to help people across Colorado understand their rights and take meaningful action after a serious crash. We offer thoughtful, personalized guidance based on your unique situation. 

For clear answers and experienced support, call (303) 747-4404. You’ll speak with a team that knows how to deal with trucking companies and insurance providers and how to advocate for what you deserve.

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This page has been written, edited, and reviewed by a team of legal writers following our comprehensive editorial guidelines. This page was approved by attorney, K.C. Harpring, a Denver personal injury attorney with extensive legal expertise.