See attached document for complaint.
The worst 2020 International Lonestar problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Transmission1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Transmission1
Recalls 3
Service brakes, air: antilock: control unit/module
- What is wrong
- 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.
- 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.
- 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 beginning January 12, 2026.
Recall number 25V817000 · Recall details
Electrical system: 12v/24v/48v battery: cables
- What is wrong
- 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.
- 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.
- 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 number 22V546000 · Recall details
Engine
- What is wrong
- 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.
- Risk
- An unexpected engine shutdown can increase the risk of a crash.
- 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.
Recall number 21V079000 · Recall details
Technical service bulletins for the 2020 International Lonestar 112
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This article provides guidance to dealership personnel, Technical Services personnel, Dealer Service...
- This article only applies to Models w/ 0016UZL Built Between 06/23/2014 – 05/11/2020 OR Models w/ 0016UZL...
- This document will guide the user through the changes of the dielectric grease/coatings used in certain...
- Certain International® trucks and IC BusTM CE Series buses may have out of date BCM programing that may
- New CARB Idle Reduction Change Request
- This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files
- This document provides guidance for assessing the feasibility of implementing a customer-requested change...
- Engine replacements for all International engines will need to follow this procedure.
- This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle...
- This document will guide the user through understanding Prop Shaft Codes and understanding the variations...
What 2020 International Lonestar owners say
Most recent owner complaints, unedited.
Compare the 2020 International Lonestar
Other model years
Questions about the 2020 International Lonestar
Is the 2020 International Lonestar reliable?
Owners have filed 1 complaint about the 2020 International Lonestar, close to a typical Lonestar model year.
What is the most common problem with the 2020 International Lonestar?
Transmission and drivetrain, with 1 complaint.
How many recalls does the 2020 International Lonestar have?
3 recalls, covering service brakes, air, electrical system and engine.
VIN decoder
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