5 Common Equipment Failures That Cause Truck Accidents

Commercial trucks weigh up to 80,000 pounds and require properly functioning equipment to operate safely. When critical systems fail, the results can be catastrophic. 

In New Mexico, trucking companies and drivers must maintain their vehicles according to federal and state regulations. When they fail to do so, accident victims have legal options for recovery.

Key Takeaways

• Brake system failures are the most common equipment defect in truck accidents, often caused by worn brake pads, air brake leaks, or overheated drums.
• Tire blowouts result from inadequate tread depth, improper inflation, overloading, or age-related deterioration, creating dangerous debris fields.
• Steering system malfunctions include power steering failures, tie rod breaks, and wheel bearing wear that cause drivers to lose directional control.
• Trailer coupling detachment happens when kingpins, fifth wheels, or safety chains fail, leading to runaway trailers and multi-vehicle crashes.
• Lighting and reflector defects reduce visibility and prevent other drivers from seeing the truck’s position, especially during nighttime or poor weather conditions.
• Federal regulations require commercial trucks to undergo regular inspections, but enforcement gaps and maintenance shortcuts still allow defective equipment on roads.
• Multiple parties may be liable in equipment failure cases, including trucking companies, maintenance providers, parts manufacturers, and leasing companies.

Understanding Truck Equipment Failures

Equipment failures occur when mechanical or electrical components malfunction due to wear, defective design, improper maintenance, or manufacturing defects. Unlike driver error, these failures often develop gradually through neglect or suddenly through part defects.

The FMCSA requires commercial motor vehicles to meet specific safety standards outlined in the Federal Motor Carrier Safety Regulations (FMCSRs). Part 396 of these regulations establishes inspection, repair, and maintenance requirements for commercial vehicles operating in interstate commerce.

New Mexico also enforces these federal standards for trucks operating within state borders. The New Mexico Public Regulation Commission oversees commercial vehicle safety compliance for intrastate carriers.

1. Brake System Failures

Brake failures represent the most dangerous equipment defect in commercial trucks. The FMCSA reports that brake problems are the most frequently cited vehicle maintenance violation during roadside inspections.

How Brake Systems Fail

Commercial trucks use air brake systems that differ significantly from passenger vehicle hydraulic brakes. These systems can fail through:

• Worn or glazed brake pads that lose friction effectiveness
• Air brake system leaks that reduce stopping power
• Overheated brake drums from excessive use on steep grades
• Improperly adjusted brake shoes that don’t make full contact
• Contaminated brake lines with moisture or debris
• Faulty brake chambers or slack adjusters

When brakes fail on a loaded semi-truck traveling at highway speeds, the vehicle may require over 600 feet to stop—more than twice the distance of a properly functioning system. This extended stopping distance often results in rear-end collisions or jackknife accidents.

Regulatory Requirements

Federal regulations require trucks to maintain brake systems capable of stopping within specific distances at various speeds. Commercial vehicles must undergo brake inspections at least annually, with more frequent checks recommended for high-mileage vehicles.

2. Tire Blowouts

Tire failures on commercial trucks create immediate hazards for the truck driver and surrounding vehicles. According to the National Highway Traffic Safety Administration (NHTSA), tire-related factors contribute to approximately 646 traffic fatalities in 2023 nationwide.

Causes of Tire Failures

Commercial truck tires endure extreme stress and require vigilant maintenance:

• Tread depth below the legal minimum of 4/32 inch on steering axles
• Improper inflation pressure causing uneven wear
• Overloading beyond the tire’s weight rating
• Age deterioration from UV exposure and oxidation
• Road hazard damage to tire sidewalls or treads
• Manufacturing defects in tire construction

When a truck tire blows out, the driver may lose control as the vehicle pulls sharply toward the affected wheel. The tire debris field can span multiple lanes and cause secondary accidents. Retreaded tires, commonly used in the trucking industry, pose additional risks when the tread separates from the casing.

3. Steering System Malfunctions

Steering system failures rob drivers of directional control, often with little warning. These failures can result from deferred maintenance or sudden component breakage.

Common Steering Problems

Critical steering components include:

• Power steering pump failures that make steering extremely difficult
• Hydraulic fluid leaks reducing steering assist
• Worn tie rod ends allowing excessive wheel play
• Failed pitman arms or drag links
• Damaged steering gearbox components
• Worn king pins on older truck models
• Wheel bearing failures causing wheel wobble

Steering failures often occur during turning maneuvers when loads on the system peak. A truck losing steering control while changing lanes or navigating curves can cross into oncoming traffic or leave the roadway entirely.

4. Trailer Coupling Detachment

The connection between tractor and trailer represents a critical failure point. When coupling systems fail, trailers become uncontrolled projectiles weighing up to 40,000 pounds.

Coupling System Components

The fifth wheel coupling system includes:

• Kingpin: A steel pin extending from the trailer that locks into the fifth wheel
• Fifth wheel: The coupling device mounted on the tractor frame
• Locking jaws: Mechanisms that grip and secure the kingpin
• Safety release latch: Prevents accidental uncoupling
• Safety chains: Backup connection if primary coupling fails

Coupling failures occur when drivers fail to properly engage the locking mechanism, when maintenance neglect allows worn components to separate, or when corrosion weakens structural elements. The FMCSA requires drivers to physically inspect coupling connections during pre-trip inspections, but rushed schedules often lead to inadequate checks.

Detached trailers can roll independently, strike other vehicles, or cause the tractor to lose stability. The resulting accidents often involve multiple vehicles and catastrophic injuries.

5. Lighting and Reflective Equipment Defects

Visibility systems help other drivers detect trucks’ position, especially at night or in adverse weather. The FMCSA requires specific lighting and reflective equipment on commercial vehicles.

Required Lighting Systems

Commercial trucks must maintain:

• Headlights and high beams for forward visibility
• Tail lights indicating the rear of the vehicle
• Brake lights signaling stops to following traffic
• Turn signals visible from front and rear
• Marker lights outlining the vehicle’s length
• Reflective tape on trailers and sides
• Clearance lights on wide or tall loads

Failed lighting causes accidents when other drivers can’t see the truck’s presence or movements. Burned-out brake lights prevent following drivers from recognizing stops. Missing reflective tape makes trailers nearly invisible at night, particularly on unlit rural highways.

Electrical system failures, corroded connections, and physical damage commonly cause lighting defects. Budget-conscious carriers sometimes defer lighting repairs despite their low cost relative to other maintenance.

Federal Regulations for Truck Maintenance

The FMCSA established comprehensive maintenance requirements to prevent equipment failures. Part 396 of the FMCSRs requires:

Carriers must keep vehicles and equipment in safe operating condition. Drivers cannot operate vehicles with conditions likely to cause an accident or breakdown. The regulations prohibit operating vehicles with identified out-of-service defects until repairs are completed.

Despite these requirements, enforcement challenges persist. Roadside inspections catch only a fraction of vehicles with defects. Economic pressures sometimes incentivize carriers to defer maintenance or operate vehicles with known problems.

Determining Liability in Equipment Failure Cases

Equipment failure accidents often involve multiple potentially liable parties. New Mexico follows comparative negligence principles, allowing recovery even when multiple parties share fault.

Potentially Liable Parties

Liability may extend to:

• Trucking companies: Responsible for maintaining vehicles and ensuring compliance with safety regulations
• Maintenance providers: Third-party shops that performed inadequate or improper repairs
• Parts manufacturers: Companies that produced defective components
• Leasing companies: Equipment lessors who retained maintenance responsibilities
• Truck drivers: Operators who failed to conduct required inspections or drove with known defects

Establishing liability requires proving the equipment failure caused the accident and identifying which party breached their duty of care. This often involves obtaining maintenance records, inspection reports, and expert analysis of failed components.

Under New Mexico law, you generally have three years from the date of a truck accident to file a personal injury lawsuit (NMSA § 37-1-8). Product liability claims against manufacturers may have different limitation periods. Identifying responsible parties early helps preserve evidence and meet filing deadlines.

What to Do After a Truck Equipment Failure Accident

If you’re involved in an accident caused by truck equipment failure:

1. Seek immediate medical attention for all injuries, even if they seem minor initially
2. Document the scene with photographs of vehicle positions, tire marks, debris, and visible damage
3. Obtain the truck information including company name, DOT number, driver’s license, and insurance
4. Report the accident to law enforcement and request an official crash report
5. Preserve evidence by not repairing your vehicle until it’s been documented
6. Contact an attorney experienced in truck accident cases before speaking with insurance adjusters

Equipment failure cases require technical expertise to identify defects and establish causation. The truck and failed components represent critical evidence that carriers may attempt to repair or dispose of quickly. Legal representation helps ensure evidence preservation through spoliation letters and litigation holds.

Compensation for Truck Equipment Failure Accidents

Victims of truck equipment failure accidents may recover damages for:

• Medical expenses including emergency care, surgery, rehabilitation, and future treatment
• Lost wages from missed work during recovery
• Loss of earning capacity if injuries prevent returning to previous employment
• Property damage to vehicles and personal belongings
• Pain and suffering from physical injuries and emotional trauma
• Loss of consortium for spouses of injured victims

New Mexico law allows recovery of economic and non-economic damages without statutory caps in most personal injury cases. However, punitive damages require clear and convincing evidence of willful disregard for others’ safety or malicious conduct.

Commercial trucks carry substantial insurance coverage, typically $750,000 to $5 million or more depending on cargo type. Equipment failure cases often involve policy limits negotiations when injuries are severe. Results vary based on each case’s specific facts, injuries sustained, and available insurance coverage.

How The Law Giant, Personal Injury & Accident Lawyers Can Help

Equipment failure truck accidents require immediate investigation before critical evidence disappears. The Law Giant, Personal Injury & Accident Lawyers understands the technical and legal complexities of these cases.

Our firm investigates truck accidents by:

• Obtaining and analyzing maintenance records, inspection reports, and driver logs
• Working with accident reconstruction experts to determine how equipment failures caused the crash
• Identifying all potentially liable parties and applicable insurance coverage
• Preserving evidence through legal holds and spoliation notices
• Consulting with mechanical engineers to establish defects and causation
• Negotiating with insurance companies to maximize compensation

We work on a contingency fee basis, meaning you pay no attorney fees unless we recover compensation for you. Our team handles all aspects of your claim while you focus on medical recovery.

Contact Us for a Free Consultation

If you or a loved one was injured in a truck accident caused by equipment failure, time matters. Evidence disappears, memories fade, and legal deadlines approach. The Law Giant, Personal Injury & Accident Lawyers offers free consultations to evaluate your case and explain your legal options.

Call (505) 578-5005 today to schedule your free consultation. We’ll review the circumstances of your accident, explain applicable New Mexico laws, and provide honest guidance about your case’s potential value. Don’t face insurance companies alone—let experienced truck accident attorneys protect your rights and pursue the compensation you deserve.

Frequently Asked Questions

What are the top five reasons equipment accidents occur?

The five most common equipment failures causing truck accidents are brake system failures (worn pads or air leaks), tire blowouts (from inadequate tread or improper inflation), steering malfunctions (power steering or tie rod failures), trailer coupling detachment (kingpin or fifth wheel problems), and defective lighting or reflective equipment. Most occur due to inadequate maintenance or deferred repairs.

What are the 5 factors that contribute to accidents?

Beyond equipment failures, the five main factors in truck accidents are driver error (fatigue, distraction, speeding), improper loading (overweight or unbalanced cargo), environmental conditions (weather, road design), regulatory violations (hours of service, licensing), and corporate negligence (inadequate training or maintenance policies). Many accidents involve multiple contributing factors rather than a single cause.

What are the top 5 causes of accidents?

The leading causes of all truck accidents are driver-related factors (accounting for roughly 87% of crashes according to FMCSA), vehicle defects (10%), environmental factors (3%), cargo issues, and inadequate roadway design. Driver error includes fatigue, speeding, distraction, and impairment.

What are the most common causes of truck accidents?

Driver negligence causes most truck accidents, including speeding, following too closely, fatigue from violating hours-of-service rules, distraction from phone use, and impaired driving. Equipment failures—particularly brake and tire problems—rank as the second most common cause. Poor weather conditions, improper loading, and inadequate driver training also contribute significantly to commercial truck crashes. Many serious accidents involve multiple causation factors working together.