Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
IK0800560
This document will guide the user through the changes of the dielectric grease/coatings used in certain areas on all International vehicles built after 1/8/2018. International's Electrical Engineering Team made this change to improve the longevity of the OEM coatings and to improve applications at the factory.
26101
Certain International® trucks and IC BusTM CE Series buses may have out of date BCM programing that may cause erroneous fault codes after a vehicle sits for 2 or 3 days.
IK2600255
This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. Customer requested changes will be approved in accordance with the requirements specified in 40 CFR Part 1037 to ensure continued compliance with greenhouse gas (GHG) regulations.
IK0800684
This document is to inform dealers, customers, and body builders/TEMs of a known BCM software issue with kernels 747 through 752. Units built after November of 2024 as well as older units that were updated with DLB between 11/5/2024 and 6/26/2025 with Remote Power Modules (RPM) modules, can experience loss of RPM functionality as well as other electrical system concerns. Kernel 753 was released to DLB on 6/26/2025 to address these concerns.
IK2600090
New CARB Idle Reduction Change Request
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This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files. It allows users to quickly load files either manually or directly from the Diamond Logic Builder Vehicles folder using VIN-based selection. As files are added or removed, the comparison runs automatically with no manual action required. The program presents results in an interactive table that shows feature codes, descriptions, access levels, and whether each feature is present in each selected file. Built-in search, filtering, and sorting make it easy to locate specific features or focus only on differences between files. Column visibility can be customized to show or hide descriptions and access information as needed. Users can remove files individually or clear all files at once, with results updating instantly. The tool also includes reporting and export options that reflect exactly what is visible on screen, allowing results to be printed, copied, saved as text, or exported to CSV for use in Excel or other spreadsheet tools. Overall, the program streamlines the process of comparing vehicle feature configurations, helping users quickly identify differences, validate setups, and document results without manual comparison or external tools.
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Engine replacements for all International engines will need to follow this procedure.
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This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.
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This document provides: Steps to take when switch pack programming fails, or when switch pack disappears after body control module update Sample scenarios Additional information to assist readers in understanding DLB switch pack programming
IK0600030
This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes. (Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)
IK0800689
In some instances, the driver's or passenger's door pod may become unresponsive, where it will not respond to any manual inputs from the driver or passenger. In some of these situations, it is possible for this symptom to be present without any fault codes becoming active. This article will guide the user through performing a hard reset of a door pod, which can restore the door pod to its operational condition, thereby avoiding the need for replacement. The steps in this article should be performed BEFORE diagnostics are completed for any active faults.
IK1201009
In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of humidity, an operator may experience engine stalling, low performance, and or poor aftertreatment performance. This is caused by condensation accumulating and freezing within the Charge Air Cooler (CAC); affecting air flow into the engine. This article lists all the currently available winter front covers that can be installed on the front grille and bumper to reduce cold air flow to the engine compartment.
IK0800688
This document is to notify the field of an issue with BCM that causes various electrical system concerns after the vehicle sits for 2-3 days. This can affect all LT, RH, MV, HV models, 2021MY and up HX, 2024MY and up CE Bus with BCM kernel version 752, 753, and 754. Vehicles built or updated with DLB between 6/1/25 and 11/4/25 are suspected of having these kernels installed on the BCM. The most common complaint is that the steering wheel switches do not function, which, depending on the vehicle model and options, can cause the bus door, pupil warning lights, radio controls, marker interrupt, and cruise control to stop working. Other complaints can include short circuit faults from multiple sensor circuits attached to the BCM setting at the same time, the vehicle will not go into gear, the headlights are stuck on, the brake lights are stuck on, or the parking brake alarm is sounding (horn chirping) with the parking brake set. As of 11/4/25, these symptoms can be resolved by updating the BCM to kernel 755 or later with DLB.
IK1201518
Title: Belt Noise or Edge Fraying in HX Vehicles Equipped with S13 Applies To: S13 Engine Serial Number 6008637 and Below in HX Chassis
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Title: Service Portal iKNow Feedback Case Types Applies To: All
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Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
IK0700113
Title: HX Rattle and Squeak Service Instructions Applies To: HX Series Trucks exhibiting complaints of a rattle or squeak from the vertical exhaust slider due to wear or too much pre load
IK1900022
Title: A/C Refrigerant and Oil Capacities Applies To: All current models
IK0900157
Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
IK1201501
Title: S13 Gear Housing Leak (By The Air Compressor) Applies To: S13 Integrated Powertrain LT RH HX
IK1200716
Title: Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check
IK1201519
Title: Replacing the Crankshaft Gear on S13 Engines
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Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
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Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
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Title: Supplemental A26 MAF Fault Diagnostics Applies To: All A26 Engines
IK0300078
This document reminds technicians of the critical relationship between the truck's suspension and the driveline operating angles. The information applies to diesel, gas, and electric vehicles.
IK0900156
Title: Connecting an Auxiliary APU to the S13 Coolant System
24517
International® HX® Series trucks built 9/1/2021 thru 8/21/2024 with Bendix 4-Channel Air Brakes ABS or Bendix 4-Channel Air Brake ESP ATC with IROS Air Suspension and Rear Drum Brake, feature codes 0004AZJ or 0004AZS & with 0014UNT or 0014UNU (IROS Air Suspension) & 0004XDE, 0004XDH or 0004XDR (Rear Drum Brake).
IK1400023
This article addresses chassis lean conditions on all chassis. This does not include any diagnostics for body leans such as a cab lean. Keep in mind that a chassis lean may cause or accentuate a cab lean. Filling out the printable form and using the notes in blue will help you to determine the source of the lean and identify the action and parts required to correct the lean.
IK0100055
This document will guide the user through repairing frame cracks and installing inner and outer frame reinforcement on HX models with C1 frame rail feature code 001cgc.
IK0800659
This document will guide the user through relocating the No-Idle system's voltage sense source from the battery to the interior sleeper PDM.
iK1201497
This document will guide the user through diagnosing X15 belt noise and fretting on the HX chassis only. This document only applies to HX models with X15 engines
iK1200101
The purpose of this document is to guide a user to resolve fault code 285 & 286 for Cummins engines.
iK1500095
This document will provide the user with cleaning options and procedures for aluminum bright work parts that become stained or tarnished.
IK0400037
This document is to guide users to eliminate brake pedal rattle noise.
IK08000403
This document details the procedure that must be followed to ensure proper alternator troubleshooting.
VER 23521
Certain International vehicles built with A26 engines does meet the emission requirements for J1939-Stationary Test
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Suggested alignment target values when performing a vehicle axle alignment.
IK0800407
Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.
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A26 & S13 Fuel Gelling
IK0800351
J1939 Data Link Source Address Information
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Tire Pressure Monitoring system; Feature Codes 16VLS, 16VUY, 16VVA, 16VVM, or 16VUZ
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Rebuilding Cylinder Heads on Certain MaxxForce 11/13, N13, and A26 engines; 2010 to present.
IK1300192
Endurant Plumbing Retrofit; only models built with endurant transmission built before 11/01/2023
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Diagnosis of chassis wander complaints.
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General Wheel Speed Sensor Troubleshooting
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HX, PayStar, and 9900 Transmission Shifter Disengaging
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J1939 Data Link Troubleshooting
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Snap-On torque wrench requirement for all big bore engine connecting rod bolts; A26, MaxxForce 13, N13 engines
IK1900272
Potential A/C Compressor Parts shortage - 4158126C1 (A/C compressor)
IK0800652
Fifth Wheel Unlock - Trailer Lamp Detection Calibration. Only models equipped with BCM feature code 597017
IK0700120
QLS Emergency Calibration Revert Process
IK1201482
Removal and Installation of the Air Cleaner Assembly Cover and Air Filters; All Engines and only HX and LT series trucks with feature code 012VCB or 012VBZ Air Cleaner Assembly
22501
This Emissions Recall applies to truck models for which, per agreement with EPA and CARB, Navistar, Inc. provided an emergency calibration for International® A26 engines when a DEF Quality Sensor (DQS) was not available. This action addressed the Diesel Exhaust Fluid (DEF) Quality Sensor failures in the field and the unavailability of parts due to the worldwide chip shortage. This recall is step two of this program designed to revert all affected vehicles back to the certified calibration and to provide them with the latest improved DQS and Coolant Control Valve (CCV) designs. Additionally, the emergency calibration and the restoration to the certified calibration with the latest improved DQS and Coolant Control Valve (CCV) designs have no effect on vehicle Emissions.
IK1201466
New air compressor incorporates an oil feed dowel O-ring. Only models equipped with 2010 and newer MaxxForce 11/13 engines, all N13, and A26 engines
IK0800655
N2 telematics module not communicating with OCC systems. Only models built with feature codes 10ADT, 10AEY, 10AEU, 10AEZ, 10AGB, or 10AGC built from 04/04/2019 through 11/01/2022.
22502
Per agreement with EPA and CARB, Cummins, Inc. provided an emergency calibration for Cummins ISB, B6.7, ISL9, L9, and X15 engines when a DEF Quality Sensor (DQS) was not available. This action addressed the Diesel Exhaust Fluid (DEF) Quality Sensor failures in the field and the unavailability of parts due to the worldwide chip shortage. This recall is step two of this program designed to revert all affected vehicles back to the certified calibration and to provide them with the latest improved DQS and Coolant Control Valve (CCV) designs. Additionally, the emergency calibration and the restoration to the certified calibration with the latest improved DQS and Coolant Control Valve (CCV) designs have no effect on vehicle Emissions.
IK1600266
HX series grille surround; only models shipped without grille surround installed
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Lift Axle potential interference; adjusting clearance when lift axle is in the "up" position
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Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
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Telematics installation guidelines - Only units with 500K data link
22903
The Proposition 65 and/or DEF warning light labels may not have been installed at time of vehicle manufacture.
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HX vertical exhaust S-pipe alignment
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Installation of the 7104674C92 Engine Sensor Harness on 2021 and Newer International A26B engines.
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QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 engines
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HX series rear crossmember cracking.
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HX Radiator Debris Damage
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Pico Scope CCOS (Crankcase Separator Test)
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PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
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PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
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PicoScope Test for Datalink (CAN) Health Shorts & opens
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PicoScope Test Resistance and Ohmmeter
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PicoScope Test One Channel RCT
22504
Under certain conditions, the Engine Control Module (ECM) programming may not detect when the Exhaust Gas Recirculation (EGR) flow exceeds the predetermined threshold resulting in not setting a fault code and activating the Malfunction Indicator Light (MIL). Only models equipped with International A26 engine.
22902
The Body Control Module (BCM) may have outdated software that could result in active Over The Air (OTA) programming to not fully complete and result in an inoperative Engine Control Module (ECM). Only models with International A26 engine and feature code 10ADT, 10AEK, 10AEU, 10AEY, 10AEZ, 10AGB, or 10AGC (Telematics Communications Module).
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International A26 engine fuel delivery pressure sensor and harness pigtail eliminated
IK1600131
Cab water leak trouble shooting tips
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HX series band clamp assembly installation guide
22110
Certain HX series trucks may have a DEF tank jumper harness with a missing circuit. Only 2023 Model Year HX series built 02/25/2022 through 03/17/2022.
22102
Certain HX series trucks built 01/21/2021 through 09/20/2021.
IK1600251
Water leaks past plastic vapor barrier sheet in the inner cavity of the cab entry door
IK1201460
Installing P/N 7104373C91 A26 Engine Sensor Harness
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2021 A26 Low Power In Cold Climates
21123
The No Idle HVAC blower motor may stay ON when ignition ignition is turned to the key OFF position resulting in a battery draw
IK0800080
J1939 Data Link Troubleshooting
IK1000003
Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
IK2600251
How to obtain As built parameter list
IK2600254
New or replacement body control Module (BC,BCM) not detected; Gen 4 BCM
21901
The Environmental Protection Agency (EPA) and California Air Resources Board (CARB) have approved an emergency calibration to provide temporary relief from the global supply shortage of electrical components. When there is a communication fault in the DEF head unit / Quality Level Sensor (QLS) this temporary calibration will allow the vehicle to operate. The procedure in this document will include diagnosing the DEF head unit / QLS and if found to be defective will advise to install the temporary engine calibration if replacement parts are not available. Any vehicle that receives this calibration will be required to have it removed and a new QLS installed once parts become available, this will be managed through future communication.
21110
The ESPAR heater may not function properly because of a constant voltage supply from the BCM to the ESPAR control module. 2020 Model year HX, LT and Lonestar
IK1201299
Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
IK1201458
Oil leaks at the Bottom of the Oil Filter Module; Only International A26, N13, or 2010 and newer 11 and 13 engines
21107
Certain HX Series trucks may have been built with an incorrect dash mounted air filter minder.
IK0700112
Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
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CPA BEAM RCT and Idle Test for A26 engine; only trucks equipped with International A26 engine
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Radio clock changes time automatically; Only vehicles built after March 2020 and excluding CV
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Frame Rail Straightness Inspection Procedure
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Tridem Axle Oil Temperature Cluster Messages
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Programming Procedure for Center Panel Switch Packs
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1 channel CPA RCT test for A26 or CV 6.6L; Only trucks built with International A26 or 6.6 engines
IK1500074
Fuel Filters, Winter Additives, and Blending Fuels for Cummins® Engines
20113
For certain International HX Series trucks with Cummins® X15 engines, the bolts that attach the idler pully mounting bracket may not be long enough to attain the correct clamp load and may result in the mounting bolts to loosen or fracture.
20507
The bolts that attach the trailing arm to the steerable auxiliary lift axle may not be long enough to engage the locking feature of the corresponding nuts and may result in fracture or loss of the bolt.
IK1900261
Bluetooth Cannot Be Connected to Radio
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Repair Procedures for Vehicles Struck by Lightning
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Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK4300009
This document will guide the user through the proper use of the A26 Misfire Detection Session to determine cylinder misfire count releted to the specific misfire DTCs.
IK0800475
Radio Diagnostics and Information
IK1600259
Chrome Plated C-Loop Mirror Flat Glass Cracks
IK1600258
Cleaning and Disinfecting Trucks and Buses
IK0900138
HX X15 Idler Pulley Bracket Torque Procedure; Only HX series trucks with Cummins X15 engine
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.