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.
IK1900198
Service Bulletin/Repair Instructions
This article only applies to Models w/ 0016UZL Built Between 06/23/2014 – 05/11/2020 OR Models w/ 0016UZL w/ Safety Recall 14516 Completed Reference the appropriate Technician Manual for models outside of this population. Safety Recall 14516 has been issued for units built before June 23, 2014. For LT and 2018+ LoneStar: If there is a complaint of the bunk blower turning off after an auto start event, the BCM needs to be updated to Data Version 323 or higher. • The bunk blower turning off was only present in BCM Data Version 309 to Data Version 322 To properly diagnose the system, you must ensure the recall has been performed. Only the "Cold Loop" sealed refrigerant core PN # 2614669C1 is to be replaced when the refrigerant circuit fails. DO NOT REPLACE THE COMPLETE UNIT IF THE A/C IS NOT FUNCTIONING. Complete unit is not Warrantable Refer to the BASIC TROUBLESHOOTING below before replacing any components. This will help you identify which component is at fault or any electrical issues. Refer to PARTS INFORMATION to properly identify the parts that may require replacement The A/C portion of the system is listed below in the parts section. The 16UZL No-Idle HVAC system is designed to disengage when the engine is started, and can be turned on with the key in any position. This battery-powered no-idle HVAC system provides heating and cooling of the sleeper area without use of the vehicle engine. The system is comprised of the no-idle HVAC components located in the sleeper HVAC module, a separate fuel-operated coolant heater mounted under the sleeper, and four additional batteries housed in a second battery box. The no-idle HVAC system shares the air handling assembly and several major components with the truck's standard HVAC system. Most importantly, the shared evaporator core contains refrigerant circuits for both the no idle system and the truck's standard A/C system. With this configuration, some procedures required to service the no idle A/C system will require opening the refrigerant circuit of the truck's standard A/C system. Trucks equipped with the 16UZL No-Idle HVAC system have two separate HVAC systems (Standard Truck A/C and the MaxxPower unit); it is important to identify each clearly, so you are troubleshooting the correct system. Per the Operator's Manual page 10: Run the heater at least once a month during the year (for a minimum of 15 minutes).
IK2600090
Other
New CARB Idle Reduction Change Request
IK4300035
Service Bulletin/Repair Instructions
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.
IK2600283
Service Bulletin/Repair Instructions
This document aims to enable technicians to: 1. Accurately identify N-series medium duty engine control systems. 2. Understand the programming intricacies related to these systems. 3. Autonomously execute programming tasks without needing technical support.
IK2600255
Other
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.
IK2600047
Service Bulletin/Repair Instructions
Engine replacements for all International engines will need to follow this procedure.
IK1600272
Service Bulletin/Repair Instructions
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.
IK2600279
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
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.
IK1201518
Service Bulletin/Repair Instructions
Title: Belt Noise or Edge Fraying in HX Vehicles Equipped with S13 Applies To: S13 Engine Serial Number 6008637 and Below in HX Chassis
IK3400001
Service Bulletin/Repair Instructions
Title: Service Portal iKNow Feedback Case Types Applies To: All
IK1400005
Service Bulletin/Repair Instructions
Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
IK0700113
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
Title: A/C Refrigerant and Oil Capacities Applies To: All current models
IK0900157
Service Bulletin/Repair Instructions
Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
IK1201501
Service Bulletin/Repair Instructions
Title: S13 Gear Housing Leak (By The Air Compressor) Applies To: S13 Integrated Powertrain LT RH HX
IK1200716
Service Bulletin/Repair Instructions
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
IK0800684
Service Bulletin/Repair Instructions
Title: Erratic BCM and RPM Behavior with Kernel 747-752 Applies To: All MV, HV, HX with RPM modules
IK1201519
Service Bulletin/Repair Instructions
Title: Replacing the Crankshaft Gear on S13 Engines
IK0500054
Service Bulletin/Repair Instructions
Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
IK2600069
Service Bulletin/Repair Instructions
Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
IK1201511
Service Bulletin/Repair Instructions
Title: Supplemental A26 MAF Fault Diagnostics Applies To: All A26 Engines
IK0300078
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
Title: Connecting an Auxiliary APU to the S13 Coolant System
IK1400023
Service Bulletin/Repair Instructions
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.
iK1201463
Service Bulletin/Repair Instructions
The purpose of this article is to describe all aspects of the A26 connecting rod replacement repair processes.
iK1500095
Service Bulletin/Repair Instructions
This document will provide the user with cleaning options and procedures for aluminum bright work parts that become stained or tarnished.
IK0400037
Service Bulletin/Repair Instructions
This document is to guide users to eliminate brake pedal rattle noise.
IK08000403
Service Bulletin/Repair Instructions
This document details the procedure that must be followed to ensure proper alternator troubleshooting.
IK0200013
Service Bulletin/Repair Instructions
Suggested alignment target values when performing a vehicle axle alignment.
IK0800407
Service Bulletin/Repair Instructions
Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.
IK1500106
Service Bulletin/Repair Instructions
Cracked air cleaner housings; only Pre 2021 HX series trucks with Cummins X15 and feature code 12VBG - cowl mounted air cleaner.
IK0800351
Service Bulletin/Repair Instructions
J1939 Data Link Source Address Information
IK1201476
Service Bulletin/Repair Instructions
Rebuilding Cylinder Heads on Certain MaxxForce 11/13, N13, and A26 engines; 2010 to present.
IK0300010
Service Bulletin/Repair Instructions
Diagnosis of chassis wander complaints.
IK0400040
Service Bulletin/Repair Instructions
General Wheel Speed Sensor Troubleshooting
IK1300148
Service Bulletin/Repair Instructions
HX, PayStar, and 9900 Transmission Shifter Disengaging
IKo800080
Service Bulletin/Repair Instructions
J1939 Data Link Troubleshooting
IK1201391
Service Bulletin/Repair Instructions
Snap-On torque wrench requirement for all big bore engine connecting rod bolts; A26, MaxxForce 13, N13 engines
IK1201466
Service Bulletin/Repair Instructions
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
IK1200101
Service Bulletin/Repair Instructions
Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
IK0700115
Service Bulletin/Repair Instructions
QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 engines
IK0100053
Service Bulletin/Repair Instructions
HX series rear crossmember cracking.
IK1201472
Service Bulletin/Repair Instructions
Pico Scope CCOS (Crankcase Separator Test)
IK0800605
Service Bulletin/Repair Instructions
PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
IK0800607
Service Bulletin/Repair Instructions
PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
IK0800609
Service Bulletin/Repair Instructions
PicoScope Test for Datalink (CAN) Health Shorts & opens
IK0800610
Service Bulletin/Repair Instructions
PicoScope Test Resistance and Ohmmeter
IK1201469
Service Bulletin/Repair Instructions
PicoScope Test One Channel RCT
IK1600131
Service Bulletin/Repair Instructions
Cab water leak trouble shooting tips
IK1201471
Service Bulletin/Repair Instructions
HX series band clamp assembly installation guide
IK1600260
Service Bulletin/Repair Instructions
16VLS, 16VUY, 16VVA, and 16VUZ Tire Pressure Monitoring System (TPMS).
IK1000003
Service Bulletin/Repair Instructions
Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
IK2600251
Service Bulletin/Repair Instructions
How to obtain As built parameter list
IK2600254
Service Bulletin/Repair Instructions
New or replacement body control Module (BC,BCM) not detected; Gen 4 BCM
IK1201299
Service Bulletin/Repair Instructions
Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
IK1201458
Service Bulletin/Repair Instructions
Oil leaks at the Bottom of the Oil Filter Module; Only International A26, N13, or 2010 and newer 11 and 13 engines
IK0700112
Service Bulletin/Repair Instructions
Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
IK0100051
Service Bulletin/Repair Instructions
Frame Rail Straightness Inspection Procedure
IK1400038
Service Bulletin/Repair Instructions
Tridem Axle Oil Temperature Cluster Messages
IK1500074
Service Bulletin/Repair Instructions
Fuel Filters, Winter Additives, and Blending Fuels for Cummins® Engines
IK0800560
Service Bulletin/Repair Instructions
Dielectric Grease Change
IK0800504
Service Bulletin/Repair Instructions
Repair Procedures for Vehicles Struck by Lightning
IK0800284
Service Bulletin/Repair Instructions
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK0800475
Service Bulletin/Repair Instructions
Radio Diagnostics and Information
IK1600259
Service Bulletin/Repair Instructions
Chrome Plated C-Loop Mirror Flat Glass Cracks
IK0900140
Service Bulletin/Repair Instructions
HX Frequent Engine Fan Cycling with A/C; only models equipped with Integrated Receiver Drier Built Before 1/13/2020.
IK1600258
Service Bulletin/Repair Instructions
Cleaning and Disinfecting Trucks and Buses
IK0900137
Service Bulletin/Repair Instructions
HX Radiator Debris Damage; only HX series trucks built before 1/13/2020
IK0900138
Service Bulletin/Repair Instructions
HX X15 Idler Pulley Bracket Torque Procedure; Only HX series trucks with Cummins X15 engine
IK1600257
Service Bulletin/Repair Instructions
HX Cluster Gauges not Zeroing at key-off; Only HX series trucks with cluster P/N 4093442C9, 4093443C9, or 4093444C9
IK0800080
Service Bulletin/Repair Instructions
J1939 Data Link Troubleshooting
IK0400159
Service Bulletin/Repair Instructions
Bendix EC80 Blank Module Replacement Program; This document will guide the user through selecting the correct ABS module when it has been determined a replacement is needed. Only Models with EC-80 ABS Controller
IK0700097
Service Bulletin/Repair Instructions
NEW Ultrasonic DEF Head Unit; All SCR vehicles
IK1201441
Service Bulletin/Repair Instructions
Identifying the Source of Oil Seen at the Lower Flywheel Housing Area. Only models equipped with Allison Transmission and International A26 or Cummins L9 engines
IK0800444
Service Bulletin/Repair Instructions
Driver Information Display (VIS/DID) screen fails to boot up.
IK0700079
Service Bulletin/Repair Instructions
SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK1201433
Service Bulletin/Repair Instructions
Only models built with Cummins X15; Fault Code 7125
IK1600228
Service Bulletin/Repair Instructions
HX; Air Conditioning Inoperative due to Low PSI A/C Switch
IK0800092
Service Bulletin/Repair Instructions
The First Check to make when Troubleshooting any Body Controller or ESC Issue
K1200716
Service Bulletin/Repair Instructions
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
18521
Service Bulletin/Repair Instructions
Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification and proper diagnosis. In addition, Diesel Exhaust Fluid (DEF) quality sensor monitors will be corrected to proper operating function.
IK0800503
Service Bulletin/Repair Instructions
ISB Starting System Diagnostics; Only models built with cummins ISB engines
NPN
Service Bulletin/Repair Instructions
DUAL STEERING GEAR AIR BLEED PROCEDURE
IK0700107
Service Bulletin/Repair Instructions
Aftertreatment Backpressure Diagnostic; Models wequipped with Cummins X15 engine
IK0800130
Service Bulletin/Repair Instructions
Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
IK0400077
Service Bulletin/Repair Instructions
FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
IK0500059
Service Bulletin/Repair Instructions
Steering Noise in Vehicles Equipped with Dual Steer
IK0800564
Service Bulletin/Repair Instructions
Child Checkmate is not functioning correctly; Only buses with features 47EXC, 47EXD, 47EXE built from 4/18/16 to 5/15/17
4328530R1
Service Bulletin/Repair Instructions
Tool Instruction - BCM Programming Harness
IK0800576
Service Bulletin/Repair Instructions
HX Engine Fan Engages While Driving Under Load; only models with Cummins X15 engines
IK1600240
Service Bulletin/Repair Instructions
Door will not open far enough
IK2500511
Service Bulletin/Repair Instructions
Using Supplier Software to Check DTCs
REC17504
Service Bulletin/Repair Instructions
The recalibration will remove engine aftertreatment system faults during reset while ensuring required driver warning remains.
IK0700096
Service Bulletin/Repair Instructions
Urea Quality Sensor (UQS) Supplemental Diagnostic and Service Information; only models with SCR Aftertreatment system and N9, N10, N13, A26 or Cummins ISB, ISL, ISX engines built from January 2016
IK0800546
Service Bulletin/Repair Instructions
HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
IK0800445
Service Bulletin/Repair Instructions
Controller Updates for 500k Baud; only vehicles with 500k baud data link
REC16512
Service Bulletin/Repair Instructions
Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification and proper diagnosis; only with 2016 compliant N13 engines and 500K baud communications network.
IK0800411
Service Bulletin/Repair Instructions
Body Controller Resource Center
IK0800412
Service Bulletin/Repair Instructions
Headlight Operation and Troubleshooting; only Post 2007 Vehicles Built with a Body Controller