7 Possible Causes of a Jackknife Truck Accident in North Hollywood, California

Sharing the road with commercial trucks in North Hollywood and throughout Los Angeles has become more stressful in recent years. You may have seen the headlines about catastrophic California truck accidents involving trucking companies that hired drivers who lacked basic training or could not read road signs or safety instructions written in English. When you hear about drivers given keys to an 80,000 pound vehicle without proper screening or instruction, it becomes easier to understand how a jackknife accident can unfold in an instant.

If you were involved in one of these crashes, you might still be replaying the moment the trailer swung sideways, blocked traffic, and left you with injuries that changed your routine overnight. The hospital visits, the medical expenses, and the disruption to your work can leave you with more questions than answers. Many people in your position want to know what caused the truck to jackknife, whether the trucking company cut corners, and how many parties could have contributed to the chain of events that hurt them.

A jackknife truck accident rarely happens for one reason. It often reflects deeper problems inside the trucking industry, including poor training, rushed schedules, distracted driving, and worn equipment. California law holds truck drivers and commercial trucking companies to detailed safety rules, and when those rules are ignored, injury victims are often left dealing with consequences that could have been prevented.

When clients come to me after a jackknife crash, they usually want to understand what actually happened and why the truck lost control. I review how the driver was trained, whether the company followed the law, and what the evidence shows about the forces involved.

What you see in front of you is the aftermath, but there is always a reason the truck lost control. My job is to find it and explain what it means for your case. The sections below cover the problems I see most often in North Hollywood jackknife crashes.

1. Speeding or Sudden Braking by the Truck Driver

Speed is one of the most common factors in jackknife truck accidents. A fully loaded tractor trailer requires much more stopping distance than passenger vehicles, and sudden braking can cause the trailer to swing outward.

A truck driver may speed or brake too abruptly for several reasons, including:

• Following traffic too closely
• Approaching a red light at unsafe speeds
• Attempting to meet unrealistic delivery schedules
• Misjudging the distance needed to stop a large commercial truck

When a truck driver hits the brakes too fast, the truck’s weight forces the trailer to slide and pivot. In many large truck accidents, this begins the jackknife motion.

Under California Vehicle Code section 22350, drivers must maintain speeds that are reasonable for traffic and road conditions. Violations of section 22350 often appear in police reports or witness statements and can be used to help prove liability in a trucking accident claim.

If speeding played a role in your crash, this may form a key part of your truck accident lawsuit or personal injury claim.

2. Improper Maintenance by the Trucking Company

Commercial vehicles require constant inspections. Worn brakes, damaged tires, or malfunctioning antilock braking systems significantly increase the risk of a jackknife accident.

Common maintenance issues linked to jackknife truck accidents include:

• Brake system failures
• Tire blowouts
• Damaged suspension components
• Misaligned trailer axles
• Faulty coupling devices

California requires regular inspection of commercial vehicles under California Vehicle Code section 34506, which incorporates many federal trucking regulations into state law. When a trucking company ignores maintenance requirements, both the truck and trailer may respond unpredictably during braking or lane changes.

Maintenance records, repair logs, and inspection reports often become important evidence in a truck accident case.

3. Driver Fatigue and Hours of Service Violations

Fatigue is one of the leading causes of trucking accidents nationwide. Long hours on Southern California freeways increase the likelihood of falling asleep or losing focus.

Commercial truck drivers who operate across state lines must follow federal Hours of Service rules issued by the Federal Motor Carrier Safety Administration (FMCSA) under 49 CFR Part 395. These rules limit daily driving hours and require mandatory breaks.

When trucking companies pressure their drivers to complete deliveries faster or take on more miles than allowed, fatigue creates a dangerous situation. Fatigue reduces reaction time, delays braking, and causes misjudgments that can lead to a truck crash or jackknife event.

Signs of fatigue may include:

• Inconsistent speed
• Drifting between lanes
• Missing traffic signals
• Delayed braking

If driver fatigue contributed to your accident case, electronic logging device data, dispatch records, and delivery schedules can be used to identify violations.

4. Improper Cargo Loading or Weight Distribution

Large commercial trucks must carry loads that are balanced and properly secured. When cargo shifts suddenly, the trailer may pull sideways and cause the tractor trailer to jackknife.

Cargo loading errors include:

• Overloading beyond federal weight limits
• Uneven distribution of weight
• Failure to secure cargo with approved tie downs
• Allowing freight to move inside the trailer

Federal weight and cargo securement rules are found in 49 CFR Part 393. If cargo shifted at the moment of the accident, more than one party could be at fault, including:

• The trucking company
• Third-party loading companies
• Independent contractors responsible for freight preparation

This is one reason truck accident claims often involve multiple parties and more complex investigations than a car accident claim.

5. Distracted Driving by the Truck Driver

Distracted driving continues to play a major role in North Hollywood truck accidents. A driver who looks away for even a second loses awareness of traffic, braking distance, and the angle of the trailer behind them.

Distractions may include:

• Texting
• Using dispatch systems
• Eating while driving
• Reaching for objects inside the cab
• Adjusting GPS systems

California law prohibits handheld cellphone use while driving under California Vehicle Code sections 23123 and 23123.5. When distracted driving leads to sudden braking or delayed reactions, the trailer can lose alignment with the tractor and cause a jackknife accident.

Phone records, dash camera footage, and witness testimony can be valuable in proving liability.

6. Hazardous Road Conditions or Unsafe Maneuvers

Traffic, tight turns in urban areas, and unexpected debris on the road can all contribute to jackknife truck accidents. A truck driver has a responsibility to account for changing conditions and adjust driving behavior.

Hazards that often contribute to jackknife events include:

• Wet pavement
• Potholes
• Loose gravel
• Sharp curves
• Construction zones
• Sudden lane obstacles

Truck drivers who make unsafe maneuvers, such as abrupt lane changes or aggressive steering, may create a chain reaction that leads to a jackknife.

California Vehicle Code section 22107 requires safe and reasonable lane changes. When a driver ignores roadway conditions, both the trucking company and their insurance carriers may attempt to avoid liability by blaming traffic or weather. A careful review of the accident scene, tire marks, and vehicle positions can counter these arguments.

7. Defective Truck Parts or Mechanical Malfunctions

Sometimes a jackknife occurs because a truck component fails unexpectedly. Even with a careful driver, a defective part can cause loss of control.

Defects may involve:

• Brake components
• Steering assemblies
• Trailer hitches
• Tires
• Electronic stability control systems

If a manufacturing defect caused the crash, the truck accident claim may expand into a product liability case. These personal injury cases often involve major national brands and require detailed mechanical analysis.

A law firm familiar with truck accident lawsuits can work with trucking industry experts to examine the equipment involved and determine whether a defect contributed to the crash.

Common Injuries Reported After Jackknife Truck Accidents

Jackknife collisions often cause more serious injuries than other types of roadway accidents. The size and force of large commercial trucks can place people in nearby passenger vehicles at significant risk.

Injury victims may face:

• Traumatic brain injuries
• Spinal cord damage
• Fractures
• Internal bleeding
• Soft tissue injuries
• Lacerations
• Post impact emotional distress

Many people also experience lost wages, long-term medical care needs, and ongoing physical limitations during recovery. Even minor injuries may require follow up treatment or specialist evaluations after the initial emergency room visits.

Who May Be Liable in a North Hollywood Jackknife Truck Accident

A jackknife accident often involves more than one party. Depending on how the crash unfolded, your truck accident claim may include:

• The truck driver
• The trucking company
• Commercial trucking companies that owned the trailer
• Third-party cargo loaders
• Truck mechanics
• Manufacturers of defective components
• Contractors responsible for maintenance
• Government entities responsible for unsafe road conditions

Each truck accident case requires a full investigation to determine how the accident happened and which at fault parties played a role. Liability may be shared among several individuals or companies, which affects how much insurance coverage is available.

Is California a No-Fault State for Truck or Car Accidents?

California is not a no-fault state. It follows a fault-based system, also known as traditional tort liability, which means the party who caused the accident is responsible for the medical expenses, lost wages, property damage, and other losses that follow. Because California uses pure comparative negligence under California Civil Code section 1714, each party’s level of fault affects how much they may be able to recover.

This matters in jackknife truck accidents because more than one party is often involved. A truck driver, a trucking company, a cargo loader, or even a parts manufacturer may share responsibility depending on the evidence. If the trucking company tries to argue that you contributed to the accident in some way, comparative negligence rules determine how the final compensation is calculated.

How an Attorney Can Support Your Truck Accident Claim

A North Hollywood personal injury attorney may investigate the truck crash from multiple angles. This helps identify violations of trucking regulations, the truck accident statute of limitations, and any evidence from the accident scene.

An attorney may assist by:

• Reviewing the police report
• Gathering medical records and imaging studies
• Evaluating property damage
• Analyzing dash camera footage
• Interviewing witnesses
• Preserving electronic logging device data
• Examining maintenance and inspection logs
• Determining whether trucking regulations were violated
• Identifying each of the insurance carriers involved

Most truck accident claims require detailed analysis because commercial trucks are governed by both California law and federal trucking regulations. A personal injury lawyer also prepares your personal injury lawsuit if settlement negotiations with the insurance company do not move forward.

California’s statute of limitations for personal injury cases is found in California Code of Civil Procedure section 335.1, which provides two years from the date of injury.

What You May Recover Through a Truck Accident Claim

If the evidence shows that another party’s negligence caused the accident, you may pursue compensation for:

• Medical expenses
• Lost wages
• Future medical treatment
• Loss of earning capacity
• Property damage
• Pain
• Emotional distress

Truck accident victims often have a higher level of medical needs due to the force of the impact. Your truck accident attorney may work with medical professionals to calculate both current and future needs before negotiating a fair settlement.

Speak to a Truck Accident Attorney About Your Jackknife Truck Accident Claim

I’m truck accident attorney Sean Shamsi. With more than 17 years handling truck accident cases, I’ve seen how fast a jackknife accident can cause devastating injuries and leave you facing long-term challenges. If you’re dealing with ongoing pain, medical bills, or pressure from insurance companies, you don’t have to deal with this on your own. My role is to take the stress off your shoulders and guide you through what comes next.

When we talk, I look at how the crash happened, who may be responsible, and what the law allows you to pursue. I review the police report, speak with your doctors, gather the records we need, and deal with the insurance carriers so you can focus on healing. You’ll always know where your case stands because you speak with me directly.

If you’ve been searching online for “truck accident lawyers near me” or need a dedicated truck accident attorney, my North Hollywood office is ready to take your call. Schedule your free, no-obligation consultation today at (818) 764-7640(818) 764-7640 or fill out our confidential online form. You pay no attorney fees unless I recover compensation for you.

I fight the insurance companies, so you don’t have to!

Copyright © 2025. The Shamsi Law Firm, APC. All rights reserved.

The information in this blog post (“post”) is provided for general informational purposes only and may not reflect the current law in your jurisdiction. No information in this post should be construed as legal advice from the individual author or the law firm, nor is it intended to be a substitute for legal counsel on any subject matter. No reader of this post should act or refrain from acting based on any information included in or accessible through this post without seeking the appropriate legal or other professional advice on the particular facts and circumstances at issue from a lawyer licensed in the recipient’s state, country, or other appropriate licensing jurisdiction.

The Shamsi Law Firm, APC
4605 Lankershim Blvd., Suite 840
North Hollywood CA 91602
(818) 764-7640(818) 764-7640
https://shamsilaw.com/