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Electrical system

2021 International LT Electrical problems

Owners have filed 1 complaint about the 2021 International LT's electrical system with NHTSA - 33% of all its complaints, most recently on October 13, 2026. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Complaints
1
Recalls
4
Crashes
0
Fires
0
Injuries
0
Deaths
0

Electrical recalls for the 2021 International LT

Electrical system: software

25V817000678 vehicles affected

The problem
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.
The 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.
The fix
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.

Electrical system: software

24V818000105,276 vehicles affected

The problem
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.
The 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.
The fix
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.

Electrical system: cables

22V5460008,483 vehicles affected

The problem
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.
The 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.
The fix
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.

Electrical system: cables

22V1640002,804 vehicles affected

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

Electrical complaints

Electrical system

Odometer Fraud. The contact sold a 2021 International LT625. The contact stated that he was a car dealer who had sold the vehicle and several other vehicles to a fleet dealer. The vehicles were a dealer sale. At the time of sale, the vehicles had approximately 600,000 miles; however, the fleet dealer currently listed the vehicle and the other vehicles for sale, showing 300,000 miles. The contact confirmed through VINs and pictures posted on the fleet dealer's website and Facebook Marketplace that the listed vehicles were the exact same vehicles the fleet dealer had purchased from the contact.

Filed Incident Electrical systemNHTSA 11770753

International LT electrical complaints by year

LT electrical problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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