Model year record

2021 INTERNATIONAL LT

13 recall campaigns on file for this model year. 6 owner complaints on file.

Recalls

Recall campaignNHTSA 25V817000

Electrical system: software

Component
Electrical system: software
Manufacturer
International Motors, LLC
Vehicles affected
678
Reported to NHTSA
2025-11-25
Owners notified
2026-01-19

Defect description

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.

Safety risk

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.

Manufacturer remedy

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.

Recall campaignNHTSA 24V818000

Electrical system: software

Component
Electrical system: software
Manufacturer
International Motors, LLC
Vehicles affected
105,276
Reported to NHTSA
2024-10-31
Owners notified
2024-12-16

Defect description

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.

Safety risk

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.

Manufacturer remedy

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.

Recall campaignNHTSA 23V370000

Service brakes, air: antilock: ABS warning light

Component
Service brakes, air: antilock: ABS warning light
Manufacturer
Navistar, Inc.
Vehicles affected
59,684
Reported to NHTSA
2023-05-25
Owners notified
2023-07-18

Defect description

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."

Safety risk

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.

Manufacturer remedy

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.

Recall campaignNHTSA 23V353000

Exterior lighting: back up lights

Component
Exterior lighting: back up lights
Manufacturer
Navistar, Inc.
Vehicles affected
32,880
Reported to NHTSA
2023-05-18
Owners notified
2024-05-06

Defect description

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."

Safety risk

Low visibility or obstructed back up lights may not alert other drivers that the vehicle is backing up, increasing the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 23V220000

Engine and engine cooling: engine: engine control module (ECU/ECM): software

Component
Engine and engine cooling: engine: engine control module (ECU/ECM): software
Manufacturer
Navistar, Inc.
Vehicles affected
770
Reported to NHTSA
2023-03-30
Owners notified
2023-05-26

Defect description

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.

Safety risk

A vehicle that unexpectedly slows to idle speed on the roadway can increase the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 22V691000

Engine

Component
Engine
Manufacturer
Navistar, Inc.
Vehicles affected
7,918
Reported to NHTSA
2022-09-15
Owners notified
2022-11-14

Defect description

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.

Safety risk

Connecting rod failure can cause an engine shutdown, increasing the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 22V546000

Electrical system: 12V/24V/48V battery: cables

Component
Electrical system: 12V/24V/48V battery: cables
Manufacturer
Navistar, Inc.
Vehicles affected
8,483
Reported to NHTSA
2022-07-28
Owners notified
2022-09-26

Defect description

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.

Safety risk

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.

Manufacturer remedy

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.

Recall campaignNHTSA 22V164000

Electrical system: 12V/24V/48V battery: cables

Component
Electrical system: 12V/24V/48V battery: cables
Manufacturer
Navistar, Inc.
Vehicles affected
2,804
Reported to NHTSA
2022-03-17
Owners notified
2022-05-16

Defect description

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.

Safety risk

A damaged battery cable can cause an electrical short, increasing the risk of a fire.

Manufacturer remedy

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.

Recall campaignNHTSA 21V281000

Engine

Component
Engine
Manufacturer
Navistar, Inc.
Vehicles affected
10,038
Reported to NHTSA
2021-04-22
Owners notified
2021-06-11

Defect description

Navistar, Inc. (Navistar) is recalling certain 2019-2021 International LT and RH trucks. The wrist pin may crack and cause connecting rod failure.

Safety risk

Connecting rod failure may cause a stall, increasing the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 21V226000

Parking brake

Component
Parking brake
Manufacturer
Navistar, Inc.
Vehicles affected
615
Reported to NHTSA
2021-04-01
Owners notified
2021-05-28

Defect description

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.

Safety risk

A hole in the diaphragm may cause an air leak, causing the parking brake to engage and increasing the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 21V227000

Service brakes, air

Component
Service brakes, air
Manufacturer
Navistar, Inc.
Vehicles affected
845
Reported to NHTSA
2021-04-01
Owners notified
2021-05-28

Defect description

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."

Safety risk

Unintended spring brake application may occur, increasing the risk of a crash.

Manufacturer remedy

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.

Recall campaignNHTSA 21V112000

Engine

Component
Engine
Manufacturer
Navistar, Inc.
Vehicles affected
7
Reported to NHTSA
2021-02-24
Owners notified
2021-03-29

Defect description

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.

Safety risk

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.

Manufacturer remedy

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.

Recall campaignNHTSA 21V079000

Engine

Component
Engine
Manufacturer
Navistar, Inc.
Vehicles affected
27,457
Reported to NHTSA
2021-02-17
Owners notified
2021-04-16

Defect description

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.

Safety risk

An unexpected engine shutdown can increase the risk of a crash.

Manufacturer remedy

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.

Owner complaints

A complaint is one person's report to a federal agency. It is not a finding.

ComponentComplaintsMedian mileage
Engine1
Forward collision avoidance: adaptive cruise control1
Forward collision avoidance: automatic emergency braking1
Fuel/propulsion system1
Service brakes1
Structure: body1

The 2020 model has about 1.5 times as many complaints as this one. The 2022 model has 2 times as many complaints as this one. These figures reflect raw complaint counts, not failure rates. Higher-selling model years naturally receive more complaints.

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.