Common Causes of Truck Accidents in Lexington, SC

Legally Reviewed by the Stewart Law Offices Content Team: Sep 19, 2026

Commercial trucks are essential to South Carolina’s economy. Every day, tractor-trailers transport construction materials, retail goods, food products, fuel, and industrial equipment through Lexington County using Interstate 20, U.S. Highway 1, Augusta Road, Sunset Boulevard, and nearby connections to Interstate 26. While these vehicles keep businesses supplied, they also create unique dangers when drivers, trucking companies, or maintenance providers fail to follow proper safety practices.

Unlike most passenger vehicle crashes, truck accidents rarely occur because of a single mistake. They often result from a combination of human error, equipment failures, company policies, road conditions, and tight delivery schedules. Understanding what caused the collision is one of the most important steps in determining liability and recovering compensation. If you were injured in a commercial vehicle collision, learning the common causes of truck accidents in Lexington, SC can help you understand how these crashes happen and why a thorough investigation matters.

Attorney Stephen Vicari is a licensed member of the South Carolina Bar with more than 10 years of experience representing truck accident victims in Lexington County. When you work with Stewart Law Offices, you receive personal case handling, direct communication with your attorney, and ongoing support from your first meeting forward. We know how to hold negligent drivers and corporate entities fully accountable for their dangerous choices.

The Most Common Causes of Truck Accidents in Lexington, SC

Every truck crash has a cause, and that cause determines who bears legal responsibility for the harm it produces. The following are the most frequently documented causes of truck accidents throughout Lexington, South Carolina, and the surrounding Lexington County road network:

Driver Fatigue

Fatigue behind the wheel of a commercial truck is among the most dangerous conditions on any roadway. Federal hours-of-service regulations under 49 CFR Part 395 limit how many consecutive hours a commercial driver may operate a vehicle, but pressure from carriers to meet tight delivery schedules leads some drivers to push past legal limits.

A fatigued truck driver loses reaction time, judgment, and the ability to respond to sudden hazards, and a loaded tractor-trailer traveling at highway speed on I-26 through Lexington County requires full attention and fast reaction every second of the route.

Distracted Driving

Federal regulations under 49 CFR § 392.82 explicitly prohibit commercial motor vehicle drivers from using hand‑held mobile phones while driving. Violations can result in civil penalties, employer liability, and driver disqualification. Despite that prohibition, distraction remains a leading factor in truck crashes. The FMCSA confirmed that distracted driving claimed 3,208 lives nationwide in 2024 and injured 315,167 more.

A truck driver texting, adjusting a dispatch device, eating, or reaching for something in the cab while navigating Augusta Road or the US-1 corridor through Lexington creates catastrophic risk for every vehicle nearby.

Speeding and Aggressive Driving

Commercial trucks require far greater stopping distances than passenger vehicles under normal conditions. When a truck driver exceeds posted speed limits or drives aggressively to meet a deadline, that stopping distance increases dramatically, and the force of any resulting impact increases proportionally.

Speeding truck crashes on the I-20 and I-26 interchanges around Lexington produce some of the most severe injury outcomes our Lexington truck accident attorneys handle. Jackknife accidents are among the most dangerous outcomes when a speeding truck loses control, causing the trailer to swing outward and block multiple lanes simultaneously.

Unsafe Lane Changes

Large commercial trucks have extensive blind spots on all four sides of the vehicle. Although passenger vehicle drivers should avoid remaining in these areas, truck drivers also have a responsibility to check mirrors carefully before changing lanes.

Many serious collisions occur because

• mirrors were not checked
• turn signals were ignored
• drivers changed lanes too quickly
• surrounding traffic was overlooked

These crashes frequently occur on multi-lane highways where traffic patterns change rapidly.

Cargo Loading Violations

Improperly loaded or overloaded trailers destabilize the truck’s handling characteristics in ways the driver cannot always detect or correct. Cargo that shifts during a turn or sudden braking can transfer enough weight to tip the trailer, producing a rollover on a surface road or highway ramp.

Cargo that exceeds legal weight limits under federal regulations degrades braking performance and puts excessive stress on tires and axles. Cargo that is not adequately secured poses a direct hazard to other vehicles when it falls from the trailer onto roadways traveled by Lexington County commuters every day.

Poor Truck Maintenance

Federal regulations require commercial carriers to conduct pre-trip and post-trip inspections and maintain documented maintenance records for their entire fleet. When a carrier neglects those obligations, mechanical failures cause crashes that would not have occurred on a properly maintained vehicle. Brake failures are the most commonly documented maintenance-related truck crash factor, and tire blowouts at highway speed cause drivers to lose control before they can respond.

Steering system failures produce similar outcomes. Trucking companies that cut maintenance costs to increase profit margins create foreseeable risks for every vehicle sharing Lexington County roads with their fleet.

Inadequate Driver Training

Operating a tractor-trailer safely requires training that goes far beyond the knowledge needed to pass a licensing exam. A driver who has not received adequate training to manage a fully loaded trailer on mountain grades, execute emergency stops on wet pavement, or recognize the early signs of tire failure risks everyone on the road.

Some carriers accelerate driver onboarding to address driver shortages, placing under-trained operators on high-volume freight routes through Lexington before those drivers have developed the judgment and skill those routes demand.

Driving Under the Influence

Federal regulations prohibit commercial drivers from operating a vehicle with a blood alcohol content at or above 0.04 percent, half the limit applicable to passenger vehicle operators, reflecting the greater risk that impairment creates when operating a vehicle of this size and weight. Prescription drug impairment and stimulant use among drivers under delivery pressure also contribute to impaired truck driving crashes.

A commercial truck accident involving driver impairment represents one of the most serious liability scenarios in personal injury law, and the evidence needed to establish it must be preserved quickly after the crash.

Equipment and Manufacturing Defects

Some truck crashes result not from driver or carrier negligence but from a defective component that failed during normal operation. Brake system defects, defective tires, and steering failures have all been documented as causes of crashes in large truck accident investigations. When a defective component manufactured or maintained by a third party caused or contributed to the crash, that party faces liability alongside the carrier and driver.

Every truck accident investigation our Lexington truck accident lawyers conduct includes examination of the vehicle’s maintenance history and component condition to identify any manufacturing or design defect that may have played a role.

Poor Weather and Road Conditions

South Carolina’s weather conditions create elevated risk for truck crashes during heavy rain, fog, and ice events. A fully loaded commercial truck traveling at highway speed on wet pavement requires substantially more distance to stop than the same truck on dry road.

Drivers who fail to reduce speed appropriately for conditions, or who follow other vehicles too closely during weather events on US-378 or I-20, create stopping distance deficits that produce rear-end crashes at the moment traffic ahead slows. Rear-end truck accidents in adverse weather conditions consistently produce some of the most severe injury outcomes in Lexington County crash records.

Evidence That Can Help Prove the Cause of the Crash

Commercial truck accidents typically generate far more evidence than an ordinary car accident. Acting quickly is important because some records may only be retained for a limited period.

Evidence commonly reviewed includes

• Electronic logging device data
• Engine control module information
• Dash camera recordings
• Driver qualification files
• Vehicle inspection reports
• Maintenance records
• Cargo loading documentation
• Cell phone records
• Police reports
• Witness statements
• Photographs and videos from the scene

When these records are analyzed together, they often provide a much clearer picture of why the collision occurred and whether federal safety regulations were violated.

Visit Our Lexington Truck Accident Lawyers in Lexington, SC

Why the Cause of the Crash Determines Who Is Liable

Identifying the cause of a Lexington truck accident is not just an investigative exercise. It determines which parties face legal liability, what evidence must be gathered, and how quickly that evidence must be secured. Trucking companies are required to retain certain records for limited periods only.

Electronic logging device data, dashcam footage, maintenance records, and driver qualification files can disappear or be overwritten without prompt legal action to preserve them. Under S.C. Code Section 15-3-530, injured victims have three years from the date of the crash to file a civil lawsuit, but the evidence needed to build the strongest possible case must be pursued far sooner.

Stewart Law Offices investigates the cause of every Lexington truck accident claim from the moment of contact, securing the electronic and physical evidence that establishes liability before it can be lost. You pay no attorney fees unless we recover compensation on your behalf.

Frequently Asked Questions About Common Causes of Truck Accidents in Lexington, SC