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.
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.
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.)
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.
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
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
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
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
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.
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.
IK0400037
Service Bulletin/Repair Instructions
This document is to guide users to eliminate brake pedal rattle noise.
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.
IK0800351
Service Bulletin/Repair Instructions
J1939 Data Link Source Address Information
IK0300010
Service Bulletin/Repair Instructions
Diagnosis of chassis wander complaints.
IK0400040
Service Bulletin/Repair Instructions
General Wheel Speed Sensor Troubleshooting
IK1201457
Service Bulletin/Repair Instructions
Cummins B6.7 Grid Heater Relay
IKo800080
Service Bulletin/Repair Instructions
J1939 Data Link Troubleshooting
IK0700120
Service Bulletin/Repair Instructions
QLS Emergency Calibration Revert Process
IK1200101
Service Bulletin/Repair Instructions
Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
IK0800554
Service Bulletin/Repair Instructions
Telematics installation guidelines - Only units with 500K data link
IK0700115
Service Bulletin/Repair Instructions
QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 engines
IK1201472
Service Bulletin/Repair Instructions
Pico Scope CCOS (Crankcase Separator Test)
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
IK0400046
Service Bulletin/Repair Instructions
WABCO Full Power Brake Diagnostic Code (DTC) Index
IK0800074
Service Bulletin/Repair Instructions
Dual Drive Cab Throttle Position Harness for APS/IVS throttle pedals; only models with both left hand and right hand drive.
IK0800080
Service Bulletin/Repair Instructions
J1939 Data Link Troubleshooting
IK1000003
Service Bulletin/Repair Instructions
Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
IK1300086
Service Bulletin/Repair Instructions
Bendix Stability control - customer satisfaction performance improvement; Specific Emergency / Tanker applications only.
IK2600251
Service Bulletin/Repair Instructions
How to obtain As built parameter list
IK0400028
Service Bulletin/Repair Instructions
How to program parameters after changing WABCO FPB ECU (Parking brake shows N/A)
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
IK0700112
Service Bulletin/Repair Instructions
Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
IK1900259
Service Bulletin/Repair Instructions
Day cab roof air deflector causing loud vibration noise at highway speed
IK0100051
Service Bulletin/Repair Instructions
Frame Rail Straightness Inspection Procedure
IK1500074
Service Bulletin/Repair Instructions
Fuel Filters, Winter Additives, and Blending Fuels for Cummins® Engines
IK1600233
Service Bulletin/Repair Instructions
Cab Lean Concern
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
IK1600258
Service Bulletin/Repair Instructions
Cleaning and Disinfecting Trucks and Buses
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
IK0800533
Service Bulletin/Repair Instructions
Key Codes and Key Cutting Information (Not for CV Series)
IK0700097
Service Bulletin/Repair Instructions
NEW Ultrasonic DEF Head Unit; All SCR vehicles
IK1201389
Service Bulletin/Repair Instructions
Cummins ISB Fan Drive Belt Chirp; Cummins ISB and Cummins B6.7
IK0400019
Service Bulletin/Repair Instructions
Air Powered (SAAR) Park Brake Troubleshooting (Service "P" Light Coming on). Only models with hydraulic brakes
Odyne Service Bu
Service Bulletin/Repair Instructions
Odyne Systems, LLC has issued a service bulletin - FSA 00029E Installation of Driveshaft Loop to address u-joint or driveline failure (In case of failure, driveshaft loop limits movement of PTO Driveshaft)
IK0700079
Service Bulletin/Repair Instructions
SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV