What to Do After a Truck Accident in Wisconsin — A Step-by-Step Guide
What to Do After a Truck Accident in Wisconsin — A Step-by-Step Guide
By Mark J. Mingo, Mingo & Yankala, S.C. | Milwaukee, Wisconsin
If you or a family member has just been involved in a truck accident in Wisconsin, the decisions you make in the next few hours can determine whether you are able to recover the full compensation you deserve — or whether critical evidence disappears and your legal rights are permanently compromised.
This guide tells you exactly what to do, in order, and explains why each step matters. It is written from the perspective of an attorney who spent years on the defense side representing major insurance companies and trucking corporations — and who now represents only injured people.
Step 1: Call 911 Immediately
Call 911 even if the injuries appear minor. You need a police report. Without one, the trucking company and its insurer will have every incentive to dispute what happened and who was at fault.
When law enforcement arrives, give an accurate account of what happened. Do not speculate about fault or apologize. Ask the responding officer how to obtain a copy of the official accident report — you will need it.
Step 2: Seek Medical Attention Immediately — Even If You Feel Fine
This is the step most accident victims skip — and it is one of the most costly mistakes you can make.
Traumatic brain injuries, internal bleeding, herniated discs, and spinal damage frequently produce no symptoms in the first hours after a crash. Adrenaline masks pain. Inflammation takes time to develop. A serious injury that presents as a minor ache at the accident scene can become a life-altering condition by the following morning.
Go to an emergency room or urgent care center the same day. If paramedics arrive at the scene, do not refuse treatment. Every visit creates a medical record that documents the connection between the accident and your injuries. Gaps in treatment — especially a failure to seek care immediately — are among the first things insurance adjusters look for when trying to minimize a claim.
Step 3: Document the Scene Before Anything Is Moved
Commercial trucks are large. The accident scene will be large. Document it thoroughly before any vehicles are moved, before debris is cleared, and before road conditions change.
Using your phone, photograph and video the following:
- The position of all vehicles before they are moved
- The truck — including its cab, trailer, license plate, DOT number on the door, and any visible damage
- Skid marks, road debris, and cargo spillage
- Traffic signals, signage, and road conditions
- The surrounding area — overpasses, on-ramps, shoulders
- Your vehicle — all four sides, plus the interior
- Any visible injuries on your body
- The faces and license plates of witnesses before they leave
More photographs are always better than fewer. Storage is free. Evidence is not replaceable.
Step 4: Get the Truck’s Information — But Do It Carefully
You need specific information from the commercial truck that is different from what you collect in an ordinary car accident. Get the following from the truck driver or from the truck itself:
- The driver’s full name and commercial driver’s license (CDL) number
- The motor carrier’s name — this is the trucking company, which may be different from the owner of the truck
- The U.S. DOT number — displayed on the side of the truck cab, usually in large print
- The MC number (motor carrier number) if visible
- The truck’s license plate number and state
- The trailer’s license plate number and state (often different from the cab)
- The name of the cargo shipper if load paperwork is visible
- The insurance carrier — some trucks carry an insurance certificate in the cab
Step 5: Get Witness Information
Other drivers, bystanders, and nearby business employees may have seen the crash. Get their names and phone numbers before they leave. Witnesses disappear quickly at accident scenes, and their accounts can be decisive — especially if the truck driver disputes what happened.
Step 6: Do Not Speak to the Trucking Company’s Insurance Adjuster
This is critical. Do not give any recorded statement to any insurance company — the trucking carrier’s insurer, your own auto insurer, or anyone else — before you have spoken with an attorney.
Insurance adjusters are professionals. Their job is to gather statements from injured people while those people are still in shock, disoriented, and unaware of the full extent of their injuries. Statements made in the first hours after a crash are routinely used to minimize or deny claims. A single poorly worded sentence about how you feel, about whether you saw the truck coming, or about what you were doing at the moment of impact can damage your case significantly.
You are not required to give a recorded statement. Politely decline and say you will have your attorney contact them.
Step 7: Understand That Trucking Companies Begin Investigating Immediately
One of the most important things an injured truck accident victim can understand is this: the trucking company and its insurer are not waiting. Within hours of a serious accident, many large carriers dispatch accident response teams — lawyers, investigators, and evidence preservation specialists — to the scene.
These teams photograph the scene from the carrier’s perspective, preserve or download electronic data favorable to the defense, interview the driver before memories fade, and begin building the defense narrative. This is not illegal. It is standard practice.
Which means you need an attorney building your case just as quickly.
Step 8: Contact a Truck Accident Attorney Immediately — Electronic Evidence Disappears
Commercial trucks generate enormous amounts of electronic data. This data is critical to establishing what happened — and it can be overwritten or destroyed quickly if not preserved.
The key electronic evidence in truck accident cases includes:
- Engine Control Module (ECM) / “black box” data — records vehicle speed, braking, throttle position, and other mechanical data in the seconds before impact
- Electronic Logging Device (ELD) records — required under FMCSA regulations; records the driver’s hours of service and driving time for the preceding days and weeks
- GPS and telematics data — records the truck’s route, speed, stops, and location history
- Dashcam and forward-facing camera footage — many modern commercial trucks have cameras that record continuously
- Dispatch communications — texts, calls, and electronic logs between the driver and the carrier’s dispatch center
Federal regulations require carriers to preserve certain records — but only for specified periods, and only if they receive notice to do so. A trucking company is under no obligation to preserve ECM data or dashcam footage beyond its normal retention schedule unless it receives a formal written demand.
One of the first things a truck accident attorney does is send a spoliation letter — a formal legal notice to the carrier and its insurer demanding preservation of all electronic evidence. Without that letter, critical evidence can disappear within days.
Step 9: Do Not Authorize Medical Records Access to the Trucking Company’s Insurer
An insurance adjuster may ask you to sign a medical authorization allowing the company to access your medical records. Do not sign anything until you have spoken with an attorney. A broad medical authorization can give an insurer access to your entire medical history — records that have nothing to do with your accident injuries — which they will use to find pre-existing conditions to blame for your symptoms.
Step 10: Preserve Everything From the Day of the Accident
Preserve your clothing, your footwear, and any items in the vehicle at the time of the crash. Do not wash or repair anything. Preserve your phone and the photographs on it. Write down everything you remember about the accident while it is fresh — the time, the weather, the road conditions, what you saw and heard, and the sequence of events. Preserve any communications you receive from the trucking company or its insurer.
Why Mark Mingo and Mingo & Yankala, S.C.
Attorney Mark Mingo argued and won DeShaney v. Winnebago County, 489 U.S. 189 (1989) before the United States Supreme Court — one of the most significant Fourteenth Amendment decisions in American constitutional law, cited thousands of times by courts nationwide and taught in virtually every law school in the United States. He has been selected to Wisconsin Super Lawyers for 18 consecutive years, holds an AV Preeminent rating from Martindale-Hubbell, an Avvo rating of 10/10 (Superb), and is National Board Certified in Trial Practice by the NBTA. He has tried more than 100 personal injury cases to jury verdict.
Before representing injured people, Mark Mingo spent years on the defense side representing major insurance companies and corporate defendants including Yamaha Motor Corporation and Bombardier Recreational Products. He knows exactly how trucking carriers and their insurers investigate and defend accident claims — because he helped them do it. That knowledge now works entirely for injured people.
If you or a family member has been seriously injured in a truck accident in Wisconsin, contact Mingo & Yankala, S.C. for a free, confidential consultation. No fee unless we win.
Schedule a free consultation → | (414) 273-7400
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Frequently Asked Questions
How long do I have to file a truck accident lawsuit in Wisconsin?
Wisconsin’s general statute of limitations for personal injury cases is three years from the date of the accident. However, if a government entity is involved — a municipal vehicle, a county truck, or a state contractor — you may have as little as 120 days to file a formal notice of claim. Missing that deadline can permanently bar your claim. Do not wait to consult an attorney.
What if I was partly at fault for the truck accident?
Wisconsin follows a modified comparative fault rule under Wis. Stat. § 895.045. You may still recover compensation as long as your percentage of fault does not exceed 51%. Your recovery is reduced proportionally by your fault percentage. An experienced attorney will investigate the accident thoroughly to establish the carrier’s fault and challenge any comparative fault argument made against you.
Can I sue the trucking company directly, or only the driver?
You can sue both — and often should. The motor carrier (trucking company) may be independently liable under theories of negligent hiring, negligent training, negligent supervision, or vicarious liability for the driver’s actions. In many truck accident cases, the motor carrier has deeper pockets and larger insurance coverage than the individual driver. Identifying all responsible parties at the outset of a case is essential.
What if the truck driver was an independent contractor?
Trucking companies sometimes attempt to characterize their drivers as independent contractors to avoid vicarious liability. Whether this characterization holds up legally depends on the specific facts of the employment relationship. Wisconsin courts examine the degree of control the carrier exercised over the driver, the work, and the equipment — regardless of how the contract labels the relationship. An attorney familiar with FMCSA regulations and Wisconsin employment law can evaluate whether the carrier remains liable.
How much does it cost to hire a truck accident attorney?
Mingo & Yankala, S.C. handles truck accident cases on a contingency fee basis. You pay no attorney fees unless and until the firm recovers compensation for you. The initial consultation is completely free. Case expenses — obtaining records, retaining experts, court filing fees — are advanced by the firm and recovered from the settlement or verdict at the conclusion of the case.