Truck vs. Passenger Vehicle Accidents: Why the Legal Process Is Different

By Eugene Bruno on May 1, 2025

Accidents that involve semi-trucks and passenger vehicles cause catastrophic injuries. And beyond the sheer size of trucks and the impact caused by these collisions, the legal process for handling truck accident claims compared to car accident claims can be far more complicated than other types of motor vehicle crashes. 

At Eugene Bruno & Associates, we’ve helped countless San Diego truck crash victims get the compensation they needed to cover the cost of their medical bills, lost wages, and other expenses.

If you or a loved one has been injured in a semi-truck vs. car accident, there are things you need to know about how the truck accident legal process works and how it differs from a car accident claim.

Size, Weight, and Damage Disparity

The most obvious difference in truck collisions vs. cars is physical. Semi-trucks can weigh up to 80,000 pounds, while the average passenger vehicle weighs under 4,000 pounds.

In a crash, this size disparity means that occupants of smaller vehicles almost always suffer more serious injuries or fatalities. As a result, injury compensation comparisons often show that claims involving large trucks are significantly higher in value due to the severity of injuries, damages, and long-term consequences.

In a truck accident, getting the compensation you deserve isn’t always as straightforward as it might be in a standard car accident because it may involve different laws, more parties, and a lot of complex evidence.

Legal Standards for Trucking Companies

Commercial truck drivers and their employers are held to a higher legal standard than other motorists under state and federal regulations. Proving negligence in a truck accident often involves showing violations of industry-specific laws.

Key regulations include:

• The Federal Motor Carrier Safety Regulations (FMCSR) enforces rules to cover everything from truck maintenance and driver hours to alcohol and drug testing.
• The California Vehicle Code sets additional standards for trucks operating within the state, including weight limits, lane restrictions, and local road access.

Violations of FMCSR or state laws can be used as evidence of trucking company negligence, even if they weren’t the direct cause of the crash. For instance, failing to inspect brakes or exceeding federal hours-of-service (HOS) limits can establish a pattern of reckless behavior.

When There’s More Than One Liable Party

One of the defining features of a San Diego truck crash lawsuit is the likelihood of multiple-party liability. In a car accident, there’s usually one other driver involved. In a truck crash, liable parties may include:

• The truck driver (for negligence, distraction, or fatigue)
• The trucking company (for improper training, supervision, or hiring)
• The cargo company (for overloading or unbalanced freight)
• The vehicle manufacturer (for defective brakes, tires, or steering systems)
• The maintenance provider (for poor service or missed repairs)

Each of these parties may be insured separately, with their own legal teams and insurance adjusters working to limit exposure. For injury victims, that means more finger-pointing, red tape, and tactics designed to delay or deny fair compensation.

Employer Responsibility and Respondeat Superior

In many truck accident cases, the legal doctrine of respondeat superior becomes a key part of the lawsuit. This principle holds that an employer is responsible for the negligent acts of its employee if those acts occurred during the course of employment.

In the context of trucking company negligence, that means:

• If a truck driver causes an accident while making a delivery, the trucking company can be liable.
• If the company failed to properly vet or supervise the driver, this can open the door to negligent hiring, training, or retention claims.

Rules of Evidence in Truck Accident Litigation

Semi-truck crashes involve specialized evidence that isn’t usually part of car accident claims. Critical pieces of evidence may include:

• Black box data: Electronic control modules (ECMs) record speed, braking, and throttle usage before and during a crash.
• Driver logs and ELDs: Electronic Logging Devices (ELDs) track driver hours, which can reveal violations of rest rules.
• Maintenance records: Documenting whether a vehicle was properly serviced prior to the crash.
• Cargo manifests: Showing whether the load was legal and properly secured.

Preserving this evidence is essential, as trucking companies are only required to retain logs and black box data for a limited time, sometimes as little as 30 days.

That’s why it’s critical to work with a law firm that knows how to send spoliation letters and file preservation motions right away to protect important evidence.

Litigation Strategies in Truck Accident Cases

Successfully pursuing a San Diego semi-truck crash lawsuit requires an aggressive, proactive approach. At Eugene Bruno & Associates, we prepare every case as if it’s going to trial. Our process includes:

1. Rapid evidence preservation: Including black box data, dash cam footage, and inspection records.
2. In-depth investigation: Interviewing witnesses, reviewing police reports, and analyzing vehicle damage.
3. Expert consultation: Accident reconstructionists, trucking industry experts, and medical professionals help us present a compelling case.
4. Insurance pressure: We know how to deal with multiple insurers and push for maximum compensation without delay.

Compensation in San Diego Truck Accident Claims

Because truck accidents are more likely to cause devastating injuries, like traumatic brain injury, spinal damage, or wrongful death, the stakes in these cases are higher.

In a typical semi-truck accident case, the following compensation may be pursued:

• Medical expenses: Past, current, and future
• Lost income and earning capacity
• Pain and suffering
• Emotional distress
• Punitive damages (in cases of gross negligence or safety violations)

Speak with an Experienced San Diego Truck Accident Attorney Today

Trucking companies are protected by teams of corporate lawyers, insurers, and claims specialists who are trained to limit their liability. If you try to handle a truck case like a car crash claim, you could end up leaving thousands of dollars on the table.

At Eugene Bruno & Associates, our San Diego truck accident lawyers know how to handle the complexity of truck vs. car accident claims. We have over 85 years of combined experience, a 99.7% success rate, and tens of millions recovered for injury victims across San Diego.

Let a credible law firm guide you through the process and fight for every dollar you deserve. Call Eugene Bruno & Associates at 1-888-BRUNO-88 (1-888-278-6688) to schedule your free consultation today.