Complaints about the 2021 International LT peaked in 2021, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Heavy truck, diesel, 6x4, built in Mexico. Owner complaints on file from Dec 3, 2021 to Mar 30, 2023.
Owner complaints about this model year, by the year they were filed with NHTSA.
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 25V-817 | Nov 25, 2025 | Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working | Electrical system | 678 | Software update |
| 24V-818 | Oct 31, 2024 | Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working | Electrical system | 105,276 | Software update |
| 23V-370 | May 25, 2023 | Anti-lock brake system (ABS) indicator light does not remain illuminated when a malfunction exists, and when the vehicle's ignition switch is on,… | Brakes | 59,684 | Software update |
| 23V-353 | May 18, 2023 | Back-up lights offer low visibility when the vehicle is in reverse and bobtail mode | Lighting | 32,880 | Part replacement |
| 23V-220 | Mar 30, 2023 | Engine control module (ECM) may be unresponsive to throttle pedal application, which can cause the vehicle to unexpectedly slow to idle speed on… | Engine and cooling | 770 | Software update |
| 22V-691 | Sep 15, 2022 | Connecting rod wrist pin may crack, resulting in connecting rod failure | Engine and cooling | 7,918 | Software update |
| 22V-546 | Jul 28, 2022 | Cables that connect the batteries to the vehicle frame may become excessively hot, and in some cases, cause battery post separation | Electrical system | 8,483 | Part replacement |
| 22V-164 | Mar 17, 2022 | Positive battery cable may be incorrectly routed, causing it to chafe on the side skirt frame and become damaged | Electrical system | 2,804 | Part replacement |
| 21V-281 | Apr 22, 2021 | Wrist pin may crack and cause connecting rod failure | Engine and cooling | 10,038 | Software update |
| 21V-227 | Apr 1, 2021 | Retainer was not properly seated in the SC-3 single check valve and may not provide source air isolation when pressure is applied | Brakes | 845 | Part replacement |
| 21V-226 | Apr 1, 2021 | Spring inside the spring brake chamber may allow the pressure plate to shift and wear a hole through the diaphragm | Brakes | 615 | Part replacement |
| 21V-112 | Feb 24, 2021 | Capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach | Engine and cooling | 7 | Repair or modification |
| 21V-079 | Feb 17, 2021 | Battery ground cable ring terminal at the frame connecting point may break, resulting in a loss of electrical power and unintended engine shutdown… | Electrical system | 27,457 | Part replacement |
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
2 complaints on file, page 1 of 1.
The brake assist malfunctioned causing the brakes to abruptly stop without cause or warning. When the braking system abruptly stopped it caused a jack knife and lost of a trailer on a congested highway with vehicles in all lanes, I was able to finally get control of the tractor with out causing contact or injury with other vehicles and the rear trailer broke free and rolled back and landed in the grass that divided the highways. I injured myself and had to have surgery. The tractor was taken to a shop 4 days after the accident. They found that the module for abs ec80 had blocked radar and data link faults for camera, radar & camera was not properly installed. Rush truck center told the company that they needed to drive tractor on a long drive to recreate issues, but the company denied to go forward and picked the tractor up.
NHTSA complaint 11514699I drive tractor trailer for JB Hunt. Over the last 4 Years, the three trucks I have been assigned to have had exhaust leaks that vented into the cab. One was a Freightliner (approx 2017 model), and two have been Internationals. These exhaust leaks caused me medical problems, requiring that I take off time unscheduled. The last three trucks I have been assigned to have had exhaust leaks into the cab. Some leaks I only found with a thermal camera. The exhaust leaks are not the main problem. The problem is that design of these trucks cause any leaking engine gases to be pushed into the cab of the truck, mostly through the air conditioning/heater vents. I have tested this. I zip tied a can of orange air freshener under the hood. The can was positioned in such a way as to point away from the air intake box, toward the back of the engine. When driving at highway speed, the orange air freshener was very strong coming into the cab from the a/c vents. The truck is supposed to be getting the fresh air from outside the truck, and forward of where the air freshener was spraying. I originally thought the only problem was that the cabin air intake box is located under the hood, in immediate proximity to all of the leaks. This in itself is a poor design. Even with duct tape over the openings into the cabin air box, any gases (or air freshener) is immediately pulled into the cab through the a/c and heat. I have no idea how this occurs. The design of the trucks allows any leaking gases under the hood to come directly into the cab. This applies to Freightliners and Internationals. They have the same basic design, and by experience I can say that both perform the same way. The hoods on both truck makes are designed with dedicated pathways to provide pure outside air for the intake of the ENGINE. The air provided to the driver comes from an unsealed airbox located under the hood. The main problem is not the leaks but that they get vented into the driver's cabin. The engine crankcase ventilation pours large volume
NHTSA complaint 11442614Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.