2021 International LT: recalls and complaints

NHTSA lists 13 recall campaigns for the 2021 International LT. The newest campaign is 25V817000. NHTSA received the report on 25 Nov 2025. The NHTSA record gives the component Service Brakes, Air / Antilock / Control Unit/Module. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 25V817000, in the NHTSA record

International will work with Bendix to reprogram the ECU, free of charge. Owner notification letters were mailed January 19, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 25525. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 12, 2026.

NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on 1 Oct 2026. Complaint file through 15 May 2019. Recall file through 29 Sep 2026.

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

13 campaigns, newest first. 257,455 units in total.

25V81700025 Nov 2025Service Brakes, Air / Antilock / Control Unit/Module
24V81800031 Oct 2024Electrical System / Software
23V37000025 May 2023Service Brakes, Air / Antilock / ABS Warning Light
23V35300018 May 2023Exterior Lighting / Back Up Lights
23V22000030 Mar 2023Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm) / Software
22V69100015 Sep 2022Engine
22V54600028 Jul 2022Electrical System / 12v/24v/48v Battery / Cables
22V16400017 Mar 2022Electrical System / 12v/24v/48v Battery / Cables
21V28100022 Apr 2021Engine
21V2270001 Apr 2021Service Brakes, Air
21V2260001 Apr 2021Parking Brake
21V11200024 Feb 2021Engine
21V07900017 Feb 2021Engine

25V817000Received 25 Nov 2025. 678 units.
Service Brakes, Air / Antilock / Control Unit/Module
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2016 7600, 2016-2023 Lonestar, 2018 8600, 2018-2023 LT, 2021-2026 MV, 2022-2023 RH, 2023-2026 HX, and 2025-2026 HV vehicles. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.
Consequence, in the NHTSA record
Safety systems that depend on the ECU, such as Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System, may have diminished or lost functionality, increasing the risk of a crash.
Remedy, in the NHTSA record
International will work with Bendix to reprogram the ECU, free of charge. Owner notification letters were mailed January 19, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 25525. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 12, 2026.
Report filed by International Motors, LLC. Manufacturer campaign number 25525. Owner notification date in the NHTSA record: 19 Jan 2026.
24V818000Received 31 Oct 2024. 105,276 units.
Electrical System / Software
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2021-2024 Lonestar, 2021-2025 RH, HV, MV, LT, HX, and 2022 PROSTAR vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.
Consequence, in the NHTSA record
Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.
Remedy, in the NHTSA record
International will work with Bendix to reprogram the ECU software, free of charge. Owner notification letters were mailed December 16, 2024. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 24515.
Report filed by International Motors, LLC. Manufacturer campaign number 24515. Owner notification date in the NHTSA record: 16 Dec 2024.
23V370000Received 25 May 2023. 59,684 units.
Service Brakes, Air / Antilock / ABS Warning Light
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021-2024 International HV, HX, LoneStar, LT, MV, eMV, and RH trucks, and IC Bus CE, 2021-2023 IC Bus RE, and 2022-2023 IC Bus TC Commercial Buses. The anti-lock brake system (ABS) indicator light does not remain illuminated when a malfunction exists, and when the vehicle's ignition switch is on, and the vehicle is in motion. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Consequence, in the NHTSA record
An ABS indicator light that fails to remain illuminated will not alert the driver of an ABS malfunction, which could increase the risk of a crash.
Remedy, in the NHTSA record
Towing variant vehicles under this campaign will not be repaired under recall 24V-8918. Dealers will update the software, free of charge. Owner notification letters are expected to be mailed July 24, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23515.
Report filed by Navistar, Inc.. Manufacturer campaign number 23515. Owner notification date in the NHTSA record: 18 Jul 2023.
23V353000Received 18 May 2023. 32,880 units.
Exterior Lighting / Back Up Lights
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2000-2003 International 8100, 2001-2003 International 9100i, 2001-2007 International 9400i, 2001-2010 International 9200i, 2002-2007, 2009 International 8500, 2003-2007, 2013 International 9900i, 2003-2018 International 8600, 2004, 2007 International 9900iX, 2008-2018 International ProStar, 2010-2011, 2013, 2016 International LoneStar, 2011-2012, 2016 International 4400, 2017-2024 International LT, 2018-2024 International RH, 2019-2021 International LS, 2019-2024 International MV vehicles. The back-up lights offer low visibility when the vehicle is in reverse and bobtail mode. Also, the vehicles have not been equipped with additional unobstructed back-up lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence, in the NHTSA record
Low visibility or obstructed back up lights may not alert other drivers that the vehicle is backing up, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will replace the existing rear stop/turn signal lights, free of charge. Owner notification letters were mailed May 06, 2024. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23514.
Report filed by Navistar, Inc.. Manufacturer campaign number 23514. Owner notification date in the NHTSA record: 6 May 2024.
23V220000Received 30 Mar 2023. 770 units.
Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm) / Software
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021-2024 International LT and RH trucks. The engine control module (ECM) may be unresponsive to throttle pedal application, which can cause the vehicle to unexpectedly slow to idle speed on the road.
Consequence, in the NHTSA record
A vehicle that unexpectedly slows to idle speed on the roadway can increase the risk of a crash.
Remedy, in the NHTSA record
Dealers will update the ECM software, free of charge. Owner notification letters are expected to be mailed May 26, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23509.
Report filed by Navistar, Inc.. Manufacturer campaign number 23509. Owner notification date in the NHTSA record: 26 May 2023.
22V691000Received 15 Sep 2022. 7,918 units.
Engine
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2018-2021 International HV, 2018-2020 International HX, 2018-2021 International LT and International RH vehicles. The connecting rod wrist pin may crack, resulting in connecting rod failure.
Consequence, in the NHTSA record
Connecting rod failure can cause an engine shutdown, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will install new knock detection software to warn the driver prior to engine connecting rod failure, and replace connecting rods as necessary, free of charge. Owner notification letters were mailed February 24, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22518.
Report filed by Navistar, Inc.. Manufacturer campaign number 22518. Owner notification date in the NHTSA record: 14 Nov 2022.
22V546000Received 28 Jul 2022. 8,483 units.
Electrical System / 12v/24v/48v Battery / Cables
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2018-2021 International LoneStar and 2016-2021 International LT vehicles. The cables that connect the batteries to the vehicle frame may become excessively hot, and in some cases, cause battery post separation.
Consequence, in the NHTSA record
Excessively hot battery ground cables may cause personal injury during battery maintenance repairs. In addition, a battery post that separates from the battery can result in an engine stall without warning, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will replace the alternator positive and ground cables, and relocate the alternator ground to the starter, free of charge. Owner notification letters are expected to be mailed September 26, 2022. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22516.
Report filed by Navistar, Inc.. Manufacturer campaign number 22516. Owner notification date in the NHTSA record: 26 Sep 2022.
22V164000Received 17 Mar 2022. 2,804 units.
Electrical System / 12v/24v/48v Battery / Cables
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2018-2023 International LT vehicles equipped with a 1500W Purkeys inverter system. The positive battery cable may be incorrectly routed, causing it to chafe on the side skirt frame and become damaged.
Consequence, in the NHTSA record
A damaged battery cable can cause an electrical short, increasing the risk of a fire.
Remedy, in the NHTSA record
Dealers will replace any damaged battery cables and install new inverter cable brackets and saddles, free of charge. Owner notification letters were mailed May 16, 2022. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 22507.
Report filed by Navistar, Inc.. Manufacturer campaign number 22507. Owner notification date in the NHTSA record: 16 May 2022.
21V281000Received 22 Apr 2021. 10,038 units.
Engine
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2019-2021 International LT and RH trucks. The wrist pin may crack and cause connecting rod failure.
Consequence, in the NHTSA record
Connecting rod failure may cause a stall, increasing the risk of a crash.
Remedy, in the NHTSA record
Navistar will notify owners and dealers will install a detection system software to warn the driver prior to engine connecting rod failure and engines with a defective connecting rod will be repaired, free of charge. Vehicles previously repaired under Recall 20V255 that received only a software update will need to return to the dealer for the new remedy. Owner notification letters were mailed on June 11, 2021. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21505.
Report filed by Navistar, Inc.. Manufacturer campaign number 21505. Owner notification date in the NHTSA record: 11 Jun 2021.
21V227000Received 1 Apr 2021. 845 units.
Service Brakes, Air
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021 International LT, RH, MV, and HV vehicles equipped with Bendix pressure switches. A retainer was not properly seated in the SC-3 single check valve and may not provide source air isolation when pressure is applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Consequence, in the NHTSA record
Unintended spring brake application may occur, increasing the risk of a crash.
Remedy, in the NHTSA record
Navistar will notify owners, and dealers will replace the SC-3 check valves, free of charge. Owner notification letters were mailed on May 28, 2021. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21503.
Report filed by Navistar, Inc.. Manufacturer campaign number 21503. Owner notification date in the NHTSA record: 28 May 2021.
21V226000Received 1 Apr 2021. 615 units.
Parking Brake
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021 International LT and International RH vehicles. The spring inside the spring brake chamber may allow the pressure plate to shift and wear a hole through the diaphragm.
Consequence, in the NHTSA record
A hole in the diaphragm may cause an air leak, causing the parking brake to engage and increasing the risk of a crash.
Remedy, in the NHTSA record
Navistar will notify owners, and dealers will inspect and, as necessary, replace the spring brake chambers, free of charge. Owner notification letters were mailed on May 28, 2021. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21502.
Report filed by Navistar, Inc.. Manufacturer campaign number 21502. Owner notification date in the NHTSA record: 28 May 2021.
21V112000Received 24 Feb 2021. 7 units.
Engine
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021 International LT vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.
Consequence, in the NHTSA record
A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.
Remedy, in the NHTSA record
Navistar will work with the engine manufacturer Cummins Inc. to notify owners, and Cummins dealers will properly tighten the capscrews and inspect for possible damage, repairing any damage found, free of charge. The recall began on March 29, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
Report filed by Navistar, Inc.. Owner notification date in the NHTSA record: 29 Mar 2021.
21V079000Received 17 Feb 2021. 27,457 units.
Engine
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2018-2021 International LoneStar and 2017-2021 International LT vehicles. The battery ground cable ring terminal at the frame connecting point may break, resulting in a loss of electrical power and unintended engine shutdown without warning.
Consequence, in the NHTSA record
An unexpected engine shutdown can increase the risk of a crash.
Remedy, in the NHTSA record
Navistar will notify owners, and dealers will replace the battery ground cable, free of charge. The recall began on April 16, 2021. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21501.
Report filed by Navistar, Inc.. Manufacturer campaign number 21501. Owner notification date in the NHTSA record: 16 Apr 2021.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

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Official channels

NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
NHTSA page of the 2021 International LTThe recalls, the complaints and the investigations that NHTSA shows for this model year.

Cite this page

Recall Register. 2021 International LT: recalls and complaints. https://recallregister.com/vehicle/international/lt/2021/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through 29 Sep 2026.

Sources

Source: NHTSA Office of Defects Investigation
Licence: US government work, public domain
Recall file through: 29 Sep 2026
Complaint file through: 15 May 2019
First complaint in the file: 1 Jan 1995
Manufacturer in the recall file: International Motors, LLC

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2021 International LT?: 257,455 units in 13 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the International LT have for all model years?: NHTSA lists 42 recall campaigns for the International LT, model years 2016 to 2027. 13 of them name the 2021 model year.
Is an NHTSA investigation of the 2021 International LT open?: The NHTSA investigation file has no investigation that names this model year.