Top 5 Ways Truck Crashes Differ from Car Crashes in California

Legally Reviewed by Daniel Setareh on September 2, 2026

Most people have a general sense of how a car accident claim goes. The injured party files a claim against the other driver, and the two insurance companies work out who owes what. However, many people mistakenly assume a truck accident claim will follow the same path.

These claims are typically more challenging, which is why it helps to understand the top ways truck crashes differ from car crashes. If you were involved in one, consider contacting a California truck accident lawyer to help guide you through the claims process.

Truck Accidents Are Often More Severe

Most fully loaded 18-wheelers weigh up to 80,000 pounds. The average passenger car, by comparison, weighs just over 4,000 pounds. The truck’s weight and size are not the only factors that can make a crash more dangerous; commercial truck drivers also contend with larger blind spots, longer stopping distances, and wider turn radii than passenger vehicle drivers. All of these factors can make a truck accident far more likely to cause life-threatening injuries. Some trucks also carry hazardous cargo, such as flammable chemicals, which can make an accident even more dangerous.

Truck Accidents Often Involve Multiple Parties

In a typical car accident, an injured party generally deals with one other driver and that driver’s insurance company. Truck accidents are usually more complicated, since several parties may share responsibility. Depending on the facts, a claim might potentially be brought against the truck driver, the trucking company, a company that loaded the cargo, or even the manufacturer of a defective truck part.

Trucking companies typically have large legal teams and experienced defense attorneys working to limit what they pay out on a claim. This is one reason it is important to speak with a personal injury attorney before giving a statement to an insurance company or opposing counsel.

Commercial Truck Accidents Usually Require More Evidence

Evidence is central to any accident claim, but truck crashes typically require more documentation than a car collision. Photographs, police reports, and witness statements remain important, but truck accident claims often also involve driver logs, employment records, and maintenance records.

Most commercial trucks are also equipped with a black box, sometimes called an electronic control module or event data recorder. It can record how fast the truck was traveling, when the driver applied the brakes, and other performance data in the moments before a crash, which can be valuable evidence in a claim.

Federal Hours-of-Service Rules Create a Distinct Fatigue Risk

Commercial truck drivers are subject to federal hours-of-service regulations from the Federal Motor Carrier Safety Administration (FMCSA) that do not apply to ordinary passenger vehicle drivers. Under these rules, most property-carrying drivers may drive a maximum of 11 hours following 10 consecutive hours off duty, and generally cannot drive after being on duty for 14 consecutive hours. Drivers are also limited to 60 hours on duty over 7 consecutive days, or 70 hours over 8 consecutive days, depending on the carrier’s schedule, and must take a break after a set number of consecutive driving hours.

Despite these regulations, some trucking companies prioritize delivery schedules over driver rest, and long-haul drivers may feel pressure to bend the rules to complete a route on time. According to FMCSA crash data, driver fatigue is consistently cited as a contributing factor in a meaningful share of large truck crashes, which is one reason hours-of-service violations are closely scrutinized in truck accident litigation.

Trucks Are Susceptible to Different Types of Crashes than Passenger Vehicles

When two passenger vehicles collide, the crash is usually a head-on, rear-end, or sideswipe impact. Rollover accidents can also occur, and they can result in catastrophic injuries or fatalities due to the weight of the vehicle and factors like high speed or uneven road surfaces. These same crash types can happen with a truck, but the truck’s size and momentum tend to make them more dangerous, and trucks are also prone to accident types that simply do not occur with passenger vehicles, such as:

• Jack-knife accidents, which occur when a trucker brakes suddenly but the trailer’s forward momentum keeps it moving, causing the trailer to swing to the side and form a V shape
• Underride accidents, which occur when a smaller vehicle crashes into the back or side of a truck and slides partially underneath it
• Override accidents, the reverse scenario, where a truck slides over a smaller vehicle in front of it
• Cargo-related accidents, where cargo breaks loose from the truck and strikes another vehicle

Causes of Truck Accidents

Truck accidents can stem from a range of factors, each contributing to the complexity and potential severity of the crash. Driver error, including speeding, reckless driving, and failure to follow traffic laws, is among the most common causes, and any such error is magnified by the size and weight of a commercial truck.

Vehicle maintenance issues also play a significant role. Faulty brakes, worn tires, and other mechanical failures can lead to a loss of control, and regular maintenance, while required, is sometimes neglected. Weather conditions such as rain, fog, or snow can further complicate driving for truck drivers, and poor road conditions, including potholes and construction zones, can add to the risk.

Cargo-related issues are another factor. Improperly loaded or unsecured cargo can shift during transit, unbalancing the truck and contributing to a crash. Understanding these causes is important both for prevention and for building a legal case after a crash has already happened.

Injuries and Damages in Truck Accidents

Truck accidents often result in more severe injuries and greater damages than are typically seen in car accidents, given the size and weight difference between the vehicles involved. Injuries can range from cuts and bruises to life-threatening conditions such as traumatic brain injuries and spinal cord injuries, and the financial impact, including medical bills, lost income, and long-term rehabilitation costs, can be substantial.

In addition to physical injuries, truck accidents frequently cause significant property damage, and in the most serious cases, they can result in fatalities. Damages in these cases often include not only medical expenses and lost wages but also pain and suffering and loss of quality of life, which are important considerations in any truck accident claim.

Truck Accidents Often Involve Much Larger Insurance Policies

Federal law requires most interstate motor carriers to maintain significantly higher minimum liability insurance than a typical passenger vehicle policy, generally at least $750,000 for general freight and up to $5,000,000 for carriers hauling certain hazardous materials. This is a meaningful difference from a standard car accident claim, where the at-fault driver’s policy limits are often far lower. While a larger policy does not guarantee a larger payout, it does mean that a truck accident case may involve a more extensive investigation into available coverage, including any umbrella or excess policies the trucking company carries, before a fair settlement can be reached.

California’s Statute of Limitations and Comparative Negligence Rule

In California, the statute of limitations for filing a truck accident lawsuit is generally two years from the date of the accident, though there are exceptions that can shorten or, in some cases, extend that window, such as claims involving a government entity. Because of these exceptions, it is important to consult a truck accident lawyer to determine the specific timeframe that applies to your case.

California also follows a pure comparative negligence rule, meaning an injured person can still pursue compensation even if they were partially at fault for the crash. Under this rule, any compensation awarded is reduced by the injured person’s percentage of fault rather than eliminated entirely. Because trucking companies and their insurers often try to shift a greater share of fault onto the other driver, having an attorney who understands how to counter these arguments can make a meaningful difference in the outcome of a claim.

What to Expect in a Truck Accident Claim or Lawsuit

Filing a claim after a truck accident can be a complex and time-consuming process, but understanding the general steps can help you prepare. Most cases begin with an investigation and evidence-gathering phase, followed by negotiations with the trucking company’s insurer. If a fair settlement cannot be reached, the case may proceed to a formal lawsuit, which typically involves filing a complaint, a discovery phase where both sides exchange evidence such as driver logs, black box data, and medical records, and, in some cases, a trial.

Throughout this process, a truck accident lawyer can negotiate with insurance companies and the opposing legal team on your behalf, working to secure a resolution that reflects the full extent of your damages. Understanding what to expect can help you prepare for the road ahead after a serious truck accident.

Speak to a California Truck Accident Attorney Today

If you or a loved one was involved in a trucking accident in California, reach out to Setareh Law. We take pride in working closely with our clients to understand the accident and their injuries. Our team of experienced legal professionals will work closely with you to build a strong case and pursue the compensation you may be entitled to. Complete our contact form to schedule a free consultation today.

Frequently Asked Questions About Truck Crashes vs. Car Crashes in California