2023 International LT technical service bulletins
148 technical service bulletins and manufacturer communications cover the 2023 International LT.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Feature code 0008TSJ for auto start stop is a feature that will allow you to preset values in the body...
- This article provides service part information for replacing a cracked gauge cluster lens
- This article will provide the calibration revision history for S13 Integrated EPA 2024 Powertrains.
- Effective January 1, 2008 , engines built for vehicles registered in California or a CARB (Air Resources...
- This document outlines the steps for customers who wish to modify their vehicle configuration by...
- This article provides guidance to dealership personnel, Technical Services personnel, Dealer Service...
- This article will provide the calibration revision history for S13 Integrated EPA 2024 Powertrains
- The purpose of
- This document will guide the user through the parts and information related to A26B resonator removal and...
- This document will guide the user through to inspect A26 turbochargers remanufactured by SRC between...
- This document will provide information regarding certain approved S13 and T14 chemicals.
- 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- Certain International® trucks and IC BusTM CE Series buses may have out of date BCM programing that may
- This document will guide the user through parts information and installation instructions for the IMP...
- This document provides instructions for sealing oil leakage past the flywheel bolt holes on S13 engines
- This document provides guidance for assessing the feasibility of implementing a customer-requested change...
- This document enables technicians to: 1. Accurately identify International® A26A engine control systems
- This document enables technicians to: 1. Accurately identify International® A26B engine control systems
- The purpose of
- This document will guide the user through supplemental fuel system diagnostics on 2017 A26 ESN 4500000
- This document will guide the user through troubleshooting steps to submitting a case file for a horsepower...
- New CARB Idle Reduction Change Request
- This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files
- 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 provides: Steps to take when switch pack programming fails, or when switch pack disappears...
- In some geographic areas, ambient temperatures reaching below 40°F (4°C), including high levels of...
- This document will guide the user through diagnosing an intermittent shutdown complaint on a 2021 A26...
- This document will guide the user through understanding Prop Shaft Codes and understanding the variations...
- In some instances, the driver's or passenger's door pod may become unresponsive, where it will not respond...
- In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of...
- This document is to notify the field of an issue with BCM that causes various electrical system concerns...
- Some interaxle shafts (the driveshaft connecting 2 drive axles) utilise special phasing
- The purpose of
- This document will guide the user through the parts and information related to A26B resonator and EGR...
- Title: Service Portal iKNow Feedback Case Types Applies To: All
- Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
- Title: A/C Refrigerant and Oil Capacities Applies To: All current models
- Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
- Title: Export Recalibration Process & Emissions Label
- Title: S13 Gear Housing Leak (By The Air Compressor) Applies To: S13 Integrated Powertrain LT RH HX
- Title: Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition...
- Title: Replacing the Crankshaft Gear on S13 Engines
- Title: S13 New Power Steering Tube Support Brackets
- Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
- Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
- Title: Parameters for 16UZL with 16VKW Applies To: Vehicles with both feature codes 16UZL and 16VKW
- Title: Supplemental A26 MAF Fault Diagnostics Applies To: All A26 Engines
- This document reminds technicians of the critical relationship between the truck's suspension and the...
- Switch Pack Programming Troubleshooting Information
- Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of...
- Title: Battery Disconnect Switch Replacement
- Title: Supplemental A26 MAF Fault Diagnostics
- Title: Connecting an Auxiliary APU to the S13 Coolant System
- 02/19/2025
- Applies To: Units built 12/20/2022
- To improve the product's durability and prevent future damage for A26, S13, and Cummins X15-powered...
- This article addresses chassis lean conditions on all chassis
- This document is used to help guide through fault codes.
- This article will call out those VINs that are equipped with the shim, and if and when the shim should be...
- This document will guide the user on the available part kits for servicing A/C system in the event of...
- This document will guide the user through installing the upper mounting hardware in place of the missing...
- This document will guide the user how to addresses chassis lean conditions on all chassis.
- This document will guide the user through relocating the No-Idle system's voltage sense source from the...
- This article will provide the necessary resources to set up PTO functionality parameters on the S13/T14...
- This document will guide the user through installing the hood support bracket kit
- The Exhaust Gas Sensor In-Use Monitor Performance Ratio (IUMPR) may operate below the prescribed standard.
- This document will guide the user through various field repairs to eliminate the squeaks, rattles knocking...
- This document will provide the user with cleaning options and procedures for aluminum bright work parts...
- This document will guide the user on what to do when they receive a fault code after programming an ECM on...
- Update to International Preventative Maintenance
- This document is to guide users to eliminate brake pedal rattle noise.
- This document covers battery diagnostics, maintenance and storage requirement.
- This document details the procedure that must be followed to ensure proper alternator troubleshooting.
- Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison...
- LT & RH aftertreatment PDM F2 fuse falling out or cracking.
- A26 & S13
- Lt / rh
- Aftertreatment PDM F2 fuse falling out or cracking.
- Corroded TPMS Receiver / Repeater Module Connectors; only models equipped with feature code 16VLS or 16VVM
- Certain LT and RH series trucks with Lane Keep Assist (LKA) may have outdated software in the LKA...
- J1939 Data Link Source Address Information
- Tire Pressure Monitoring system; Feature Codes 16VLS, 16VUY, 16VVA, 16VVM, or 16VUZ
- A26 and S13 Fuel Gelling; only vehicles equipped with International A26 or S13 engines
- Rebuilding Cylinder Heads on Certain MaxxForce 11/13, N13, and A26 engines; 2010 to present.
- Endurant Plumbing Retrofit; only models built with endurant transmission built before 11/01/2023
- No Idle HVAC run time shorter than expected
- Diagnosis of chassis wander complaints.
- General Wheel Speed Sensor Troubleshooting
- How to request a horsepower quote; all International and Cummins engines
- J1939 Data Link Troubleshooting
- Snap-On torque wrench requirement for all big bore engine connecting rod bolts; A26, MaxxForce 13, N13 engines
- Cab Deflector Extension
- Potential A/C Compressor Parts shortage
- Fifth Wheel Unlock
- Removal and Installation of the Air Cleaner Assembly Cover and Air Filters; All Engines and only HX and LT...
- New air compressor incorporates an oil feed dowel O-ring
- N2 telematics module not communicating with OCC systems
- Per agreement with EPA and CARB, Cummins, Inc. provided an emergency calibration for Cummins ISB, B6.7,...
- QLS Emergency Calibration Revert Process
- Auto Start Stop Information and troubleshooting; Only LT with feature code 08TSJ
- Tire Pressure Monitoring systems (TPMS); Only LT, RH, HV, HX, or MV series trucks with feature code 16VLS,...
- New Air compressor Incorporates an oil feed dowel O-ring; only models built with MaxxForce 11/13, N13, or...
- Hood guide installation
- Certain HV, HX, LT, and RH Series trucks may have incorrect idle shutdown programmable parameters
- Certain LT Series trucks may have incorrect idle shutdown programmable parameters
- Certain HV, LT, and RH Series trucks may have incorrect idle shutdown programmable parameters
- Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
- Telematics installation guidelines
- Starter diagnostics and warranty claim procedure for all engines and all chassis EXCLUDING vehicles...
- Rebuilding cylinder heads on certain EPA 2010 MaxxForce 11/13, N13, and A26 Engines
- Rebuilding Cylinder Heads on Certain International MaxxForce 11/13 engines and all International N13 and...
- The Proposition 65 and/or DEF warning light labels may not have been installed at time of vehicle manufacture.
- Fifth Wheel Unlock
- Installation of the 7104674C92 Engine Sensor Harness on 2021 and Newer International A26B engines.
- QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 engines
- QLS Emergency Calibration
- J1939 Data link source address information
- These certain trucks may have incorrect ECM programming in make and model programmable parameter
- The steering gears may have been assembled with less than the required input shaft ball bearings and can...
- Pico Scope CCOS (Crankcase Separator Test)
- Lt A26
- Certain HV and LT Series trucks may have an alternator built with an incorrect voltage regulator that...
- The fifth wheel jaw release airline may be routed incorrectly and could result in a pinched line when the...
- Cab Components That Reduce Wheel End Vibration Complaints
- As reported by R. H. Sheppard Co., Inc. in their defect report to the federal safety agency (Recall...
- PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
- PicoScope Test
- PicoScope Test for Datalink (CAN) Health Shorts & opens
- PicoScope Test Resistance and Ohmmeter
- PicoScope Wheel Speed Sensor Test
- PicoScope Test One Channel RCT
- Cab Components That Reduce Wheel End Vibration Complaints
- Side mounted cab extender fins that provide more flexibility during trailer contact.
- Cab water leak trouble shooting tips
- Textured surfaces on painted plastic bumpers, chassis side skirts, and fender extendtions
- Primer recommendation for matching textured panels to smooth panels for field repairs
- The positive battery cable to the inverter may chafe on the side skirts and over time could result in an...
- DEF tank coolant hose routing on 73-inch sleeper cabs
VIN decoder
See the problems and recalls for an exact car
Buying a used 2023 International LT?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history