How does an underride crash differ from a standard collision?

Not all traffic collisions carry the same level of risk or the same set of legal considerations. When a smaller vehicle slides beneath the body of a large commercial truck, the resulting injuries and the legal process that follows might look different from those in a typical crash.

Can an underride crash cause more severe injuries?

An underride crash happens when a smaller car slides under the rear or side of a large truck trailer. In many cases, the trailer sits high enough that it cuts into the upper part of the car. This can crush or tear away the roof, which exposes occupants to direct impact.

Most passenger vehicles rely on safety features designed for crashes with similar-sized vehicles. When a car goes under a trailer instead, those features may fail to work as intended. For example, airbags may not deploy at the right time, and seatbelts may not hold the body in a safe position during impact.

These crashes can also lead to additional injuries inside the vehicle. Occupants may also strike parts of the trailer or loose cargo as the structure of the car gives way, making these among the most serious crashes on the road.

Does liability work differently in these cases?

In a standard collision in Illinois, liability centers on which driver violated a traffic law or acted negligently behind the wheel. Underride crashes tend to involve a broader range of potentially responsible parties beyond just the two drivers.

Several parties may share responsibility, including the trucking company, the trailer manufacturer, a maintenance contractor or a government agency that handled the road’s design. Federal rules require certain commercial trailers to have rear underride guards. If a guard is missing, damaged or poorly built, that failure can support a product liability claim or point to a violation of safety regulations.

The state also follows a modified comparative negligence standard, which means a jury can reduce your compensation according to your percentage of fault as long as that share is 50% or less. In underride cases, sorting out responsibility can involve a close review of federal motor carrier safety rules along with state negligence law.

Is filing a claim more complex for this type of crash?

Filing an injury claim after an underride crash often involves more complexity than a standard collision. You may need to deal with several defendants, questions about federal regulations and insurance policies that differ from typical personal auto coverage. Each of these factors can add layers to the process and affect how a claim moves forward.

Illinois law generally gives a two-year window from the date of the crash to file a personal injury lawsuit. Because underride cases involve technical details and multiple issues, starting early can provide enough time to investigate the facts and gather strong evidence.