Big rigs, semi-trucks, and large commercial vehicles flood the highways and interstates. These massive vehicles can weigh up to 80,000 pounds when they are fully loaded with cargo. Because they are so heavy, if there is a collision, the damage can be catastrophic.
These trucks travel thousands of miles across the country every single week. They face bad weather, rough roads, and long hours of non-stop driving. Because of this extreme wear and tear, they require a lot more care than a standard car.
Trucking companies have a strict duty. Under federal law, they are fully responsible for scheduling regular maintenance for every single vehicle in their fleet. But how often do semi trucks get serviced?
There is a strict schedule that companies must follow. It involves daily checks, mileage milestones, and strict federal laws. When companies cut corners on these rules, innocent drivers get hurt.
Commercial Trucking Maintenance Regulations Key Takeaways
- Commercial trucks require frequent, structured maintenance, including daily inspections, routine service every 10,000–15,000 miles, deeper checks at 25,000–30,000 miles, and a mandatory annual inspection.
- Federal law requires trucking companies to regularly inspect, repair, and maintain all vehicles, and to keep detailed maintenance records.
- Poor maintenance is a major cause of preventable truck accidents, often involving brake failure, tire blowouts, or steering issues.
- Trucking companies can be held legally responsible if they ignore maintenance requirements, as this may be considered negligence.
- Multiple parties may be liable after a crash, including the driver, trucking company, or maintenance providers, especially if inspections or repairs were skipped or done improperly.
The Serious Danger of Poor Maintenance
When a truck is not taken care of, it becomes a serious threat to other drivers. According to the National Safety Council (NSC), in 2023, 5,375 large trucks were involved in fatal crashes. On top of that, 114,552 large trucks were involved in crashes that resulted in serious injuries.
Most of the victims in these crashes were the people in the smaller, standard cars. A regular car is no match for a giant steel truck. Learning about the dangers of truck accidents is the first step to protecting yourself.
Many of these horrible accidents are completely preventable. They do not happen because of bad weather or sudden emergencies. They happen because a brake line snapped, a tire blew out, or an engine failed. They happen because a trucking company chose to ignore basic safety rules.
The Standard Maintenance Milestones
Depending on the distance a truck travels and the heavy cargo it carries, the vehicle needs different types of care at different times. A structured, routine semi truck maintenance schedule is the only way to catch mechanical problems before they get on the road.
Daily Pre-Trip and Post-Trip Inspections
Maintenance starts every single day. Before a truck driver even turns the key, they are supposed to do a pre-trip inspection.
Drivers must walk around the truck and check the:
- Tires
- Lights
- Brakes
- Mirrors
They must also look under the truck for heavy fluid leaks. At the end of their shift, they must do a post-trip inspection. If they spot any problems, they must report them right away. The truck should not be driven until the problem is fixed.
Basic Service Every 10,000 to 15,000 Miles
Semi-trucks rack up miles very fast. For every 10,000 to 15,000 miles a truck travels, it must receive a basic service. During this check, a mechanic will inspect the brake pads to make sure they are not worn down. They will test the turn signals and headlights.
They will also top off vital fluids, like the power steering fluid and coolant. Running out of coolant can destroy an engine while driving down the interstate.
Thorough Inspections Every 25,000 to 30,000 Miles
A truck needs a much more thorough inspection when it hits 25,000 to 30,000 miles. During this time, the truck’s oil must also be changed. Fresh oil keeps the heavy engine parts moving smoothly without catching on fire.
The mechanics will also replace the oil, air, and fuel filters. Clogged filters cause the truck to stall or lose power.
It is highly recommended to complete all minor repairs during this milestone. Ignoring small squeaks or rattling parts at 30,000 miles often leads to total mechanical failure down the road.
Full Inspections Once Per Year
At least once per year, every single commercial truck must undergo a massive, top-to-bottom inspection. This is called the Annual DOT Inspection.
During this annual inspection, trucking mechanics perform a comprehensive review of the truck's essential components. Key areas of focus include:
- Analyzing the engine's performance
- Checking the integrity of the steel frame
- Inspecting the coupling devices that connect the trailer to the truck cab
If the engine or frame is worn out or deemed dangerous, it must be replaced. A truck cannot legally operate without passing this yearly test.
Federal Laws and Strict Requirements
Truck maintenance is not just a polite suggestion. It is the law. The government takes highway safety very seriously.
The Federal Motor Carrier Safety Administration (FMCSA) creates the rules for the trucking industry. Under federal law, specifically 49 CFR Part 396, every motor carrier must systematically inspect, repair, and maintain all motor vehicles under its control.
The law clearly states that any parts and accessories must be in safe and proper operating condition at all times. This includes everything from the windshield wipers to the heavy-duty brake systems. Trucking companies must keep exact records of all maintenance. They have to write down the date, the specific repair, and the name of the mechanic.
When a truck crashes, lawyers and investigators will immediately look at these records. Understanding how FMCSA regulations impact your truck crash case is vital. If a company broke federal law by skipping an inspection, it proves they were acting negligently.
What Happens When Maintenance is Ignored?
It is entirely up to trucking companies to schedule these regular maintenance checks. Sadly, however, trucking companies sometimes skimp on necessary commercial truck maintenance.
Why do they skip maintenance? The answer is simple: money. Many greedy corporations decide to prioritize their profits over your safety. Taking a truck off the road for a few days to fix the brakes costs the company money. Paying a skilled mechanic costs money. Buying brand new, high-quality tires costs money. They force their drivers to take dangerous trucks out onto the highway to deliver cargo faster.
Here are the most common parts that fail when ignored:
Brake System Failure
A fully loaded semi-truck traveling at 65 miles per hour needs a huge amount of distance to come to a complete stop. The brakes take a massive amount of friction and heat. If the brake pads are thin or if the air brake lines have a leak, the brakes will simply fail.
It already takes a truck a long time to safely come to a complete stop. If a truck has weak brakes, it can cause a terrible rear-end accident with the car in front of it.
Tire Blowouts
The weight of semi-trucks puts a lot of stress on the wheels. If a tire is under-inflated or if the rubber tread is completely worn down, the tire can explode while driving. This is called a blowout.
When a front tire blows out, the truck driver can easily lose control of the steering wheel. The truck may swerve across multiple lanes of traffic, crushing smaller vehicles in its path.
Blown-out tire leaves massive chunks of heavy rubber in the road, which can shatter the windshields of cars driving behind the truck.
Steering and Suspension Failure
The steering system is crucial for keeping a truck in its proper lane. If the steering fluid runs low or the connection rods rust, a driver can lose the ability to turn the wheels, causing the truck to drift into oncoming traffic.
The suspension system keeps the truck balanced. If the suspension fails, the truck can easily roll over and crush adjacent vehicles.
Uncovering the Truth After a Crash
To win a legal battle against them, you need undeniable trucking accident evidence to expose their lies.
When you are involved in a wreck with an 18-wheeler, the trucking company will almost always try to blame someone else. They will blame the weather, they will blame their contracted driver, or they will even try to blame you.
Modern trucks have a "black box" that records the truck's speed, braking, and engine status right before the crash. Trucking companies also have electronic logging devices and digital maintenance records. However, these companies are known to "lose" or delete this evidence quickly after a crash.
You must take fast legal action to force the company to preserve the maintenance logs. If the logs show the truck went 50,000 miles without a basic brake check, the company is caught red-handed.
Holding the Negligent Parties Accountable
When a truck crashes due to bad brakes or blown tires, multiple people might be at fault. This is known as liability. Liability simply means who is responsible for the harm caused, and who has to pay for it.
Learning about the role of negligence and liability in truck accidents is crucial for your recovery. The truck driver might be liable for failing to do their daily pre-trip inspection. The trucking company is usually liable for ignoring federal laws and forcing the unsafe truck onto the road. Sometimes, the third-party mechanic shop is liable for doing a terrible job repairing the vehicle.
DM Injury Law Is Here to Fight for You
If you or someone you love has been wrongfully injured in a truck accident, you do not have to fight this battle alone. The aftermath of a serious crash is overwhelming. As you focus on your physical and emotional recovery, we will focus on the recovery of your losses. We understand how emotionally exhausting and financially burdening it can be.
Our team of experienced attorneys at DM Injury Law is ready to fight for you in any case. We know exactly how to investigate greedy trucking companies. We know how to uncover their hidden maintenance records and expose their lies. Insurance companies try to pay victims as little as possible, but we seek to get you the maximum compensation you deserve.
We help injured victims maximize their financial recovery. We have a proven history of standing up to major corporations and bringing our clients the justice they so deeply deserve. Our successful case results include:
- $11 Million for clients whose son was killed in a work-truck accident
- $2.2 Million for a family who lost a family member in a truck crash
- $1.8 Million for the family of a man who died from his injuries after a truck wreck
DM Injury Law has offices all over the Midwest, including:
- Kansas City truck accident lawyer
- St. Louis truck accident lawyer
- Columbia truck accident lawyer
- Topeka truck accident lawyer
- Wichita truck accident lawyer
- Oklahoma City truck accident lawyer
- Tulsa truck accident lawyer
- Denver truck accident lawyer
- Omaha truck accident lawyer
Contact us online today or call us at 816-888-7500 to schedule your free consultation. Remember, Mike’s Got This!
