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.
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.)
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.
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.
IK0800503
Service Bulletin/Repair Instructions
Cummins ISB Starting system diagnostics.
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
22502
Service Bulletin/Repair Instructions
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.
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)
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
IK1600145
Service Bulletin/Repair Instructions
Front cab mount bushings/insulators MV, HV, DuraStar, and WorkStar vehicles used in severe vocations
IK1600131
Service Bulletin/Repair Instructions
Cab water leak troubleshooting tips; HX with steel cab only
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
20510
Service Bulletin/Repair Instructions
On certain trucks equipped with an automatic transmission, if the automatic transmission is still in drive or reverse position and the stationary PTO switch is engaged, the engine RPM will ramp up and may overcome parking brake hold capability resulting in possible vehicle movement.
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
IK1300185
Service Bulletin/Repair Instructions
Reduced ISB Engine Exhaust Brake Efficiency; Only vehicles with Allison 1000/2000 series transmissions
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
IK1900257
Service Bulletin/Repair Instructions
Day Cab Roof Air Deflector Vibrates against Cab Roof; only models with P/N 4067947C92 Roof Air Deflector
IK1201398
Service Bulletin/Repair Instructions
ISB 6.7 Frequent Regeneration
IK1600207
Service Bulletin/Repair Instructions
Wind noise at upper side of cab door due to door out of alignment
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
IK0700079
Service Bulletin/Repair Instructions
SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK0800484
Service Bulletin/Repair Instructions
Voltage gauge drops on cold engine start-up; Only models built with Cummins ISB, B6.7, ISL, or L9 engines
K1200716
Service Bulletin/Repair Instructions
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
IK0400063
Service Bulletin/Repair Instructions
Brake pedal not returning and sticking slightly in the applied position
IK0800059
Service Bulletin/Repair Instructions
Brake Lights Staying On
IK0800017
Service Bulletin/Repair Instructions
Programing New Key Fobs
IK0800578
Service Bulletin/Repair Instructions
Body Builder Accessories Backfeeding Ignition Voltage
IK0800114
Service Bulletin/Repair Instructions
Vehicle Speed ( VSS ) Output for Bodybuilders
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
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
IK0800445
Service Bulletin/Repair Instructions
Body Controller Updates for 500k Baud data link
IK0800522
Service Bulletin/Repair Instructions
Repair Information for Damaged Headlight Connector
4328530R1
Service Bulletin/Repair Instructions
Tool Instruction - BCM Programming Harness
IK0400158
Service Bulletin/Repair Instructions
Wabco OnGuard Software Update; Only 500k baud rate Units with Wabco OnGuard with Cummins Engines built before 9-24-2018.
IK1500093
Service Bulletin/Repair Instructions
Cummins L9 EPA 17 Supplemental Fuel System Diagnostics - Racor Chassis Mounted Fuel Filter / Cummins fault 559
IK0800565
Service Bulletin/Repair Instructions
Rework Instructions for Feature Code 0012VYL Accessory Wiring for Road Speed (salt spreader); only models built with Cummins ISL engine and feature 0012VYL built between 04/05/2017 and 06/16/2017
IK0900122
Service Bulletin/Repair Instructions
Loose or Missing Charge Air Cooler Clamps and Possible DPF Plugging; only models Equipped with Cummins B6.7 engine
Rec17V-792_2017-
Service Bulletin/Repair Instructions
The fire extinguishers may become clogged or require excessive force to activate. In certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. Only equipped with Kidde model FC5 and FC10 fire extinguishers identified by International part numbers 1696423C2 and 1696423C3 and installed post production at Navistar?s Truck Sales Processing Center (TSPC).
IK4300001
Service Bulletin/Repair Instructions
Updating OnCommand Link with Accelerator
IK1201362
Service Bulletin/Repair Instructions
ISB CAC Port Plug; onle vehicles with Cummins ISB engine
IK1200921
Service Bulletin/Repair Instructions
ISX, N13, and N9 / N10 Aftertreatment Private Data Link Troubleshooting
IK1900254
Service Bulletin/Repair Instructions
Air Compressor Intake Hose Rubbing Zip Tie; only models with Cummins ISB engine
IK2700100
Service Bulletin/Repair Instructions
OnCommand EZ-Tech
IK2500511
Service Bulletin/Repair Instructions
Using Supplier Software to Check DTCs
IK0800517
Service Bulletin/Repair Instructions
Cummins Engine Remote Engine Speed Control; only with feature code12XAT or 12XBM
IK0800341
Service Bulletin/Repair Instructions
Trailer Auxiliary Switch Lamp Burning Out; Only Vehicles Equipped with Feature Code 0008TTH or 0008THG
IK0400154
Service Bulletin/Repair Instructions
Hydraulic Brake System Park Brake Inspection and Adjustment Procedures; only models with Hydraulic Brake system equipped with 04GBJ Park Brake
IK0400152
Service Bulletin/Repair Instructions
Windshield Replacement on trucks equipped with Lane Departure Cameras; Only models with one of the following feature codes 008TTG, 0008TPU, 0008TTT, 0008TTU
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
IK2900030
Service Bulletin/Repair Instructions
Dealer EZ-Tech and Diagnostic Software Support Resource Center
IK1201363
Service Bulletin/Repair Instructions
CPA Injector Misfire Detection; Only models with 2004 thru 2017 International engines.
IK1201360
Service Bulletin/Repair Instructions
Cylinder Performance Analyzer (CPA) Resource Center; Only models with 2004 thru 2017 International engines.
IK2700090
Service Bulletin/Repair Instructions
OnCommand EZ-Tech Download Center
AFC16906
Service Bulletin/Repair Instructions
The Wingman Fusion camera software has an issue in determining the regional settings. This can cause fault codes, warning lights and disabling certain functions of the Wingman Fusion system. Wingman radar-only collision mitigation remains intact.
IK1201359
Service Bulletin/Repair Instructions
Breather Filter and Crankcase Tube Freezing Issue in Below Freezing Temperatures; only models with Cummins ISB 6.7 and QSB 6.7
IK0500038
Service Bulletin/Repair Instructions
Steering Shake, Shimmy, Shudder, or Steering Vibration; only with 14k front weight rated axles and below
MIN16138
Service Bulletin/Repair Instructions
The fan hub mounting bracket may be loose due to the mounting bolts being too long; only with Cummins ISL engines.
IK0500058
Service Bulletin/Repair Instructions
Steering Fluids
MIN16135
Service Bulletin/Repair Instructions
Certain DuraStar models may have been built with an incorrect clutch rod; only with Cummins ISL engine and manual transmission.
IK0400147
Service Bulletin/Repair Instructions
Wabco Hydraulic Power Brake cap/grounds diagnostics and repair procedure
IK1201248
Service Bulletin/Repair Instructions
Cooling System Flush Procedure
MIN16125
Service Bulletin/Repair Instructions
Certain models may have been built without the necessary ground circuit for the emergency pump relay resulting in the pump to run at all times when the ignition is in the run position.
IK1600222
Service Bulletin/Repair Instructions
POWER WINDOW BINDING
AFC16902
Service Bulletin/Repair Instructions
THE BODY CONTROLLER MAY NOT BE PROGRAMMED WITH THE NECESSARY PROGRAMMING FOR THE SNOW PLOW DAY TIME RUNNING LIGHTS (DRLS) TO OPERATE WHEN SWITCHING FROM THE HOOD LIGHTS TO THE SNOW PLOW LIGHTS.
IK1200029
Service Bulletin/Repair Instructions
RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE
IK0400056
Service Bulletin/Repair Instructions
BRAKE LIGHT OPERATION; ONLY EQUIPPED WITH FULL POWER BRAKE SYSTEM
MIN16114
Service Bulletin/Repair Instructions
Certain vehicles may have been built without the vent hose on 5 and 15 gallon Diesel Exhaust Fluid (DEF) tanks.
IK1900223
Service Bulletin/Repair Instructions
Air Conditioning Electrical Diagnostics
MIN16108
Service Bulletin/Repair Instructions
Certain vehicles may have been built without an air line causing the fan drive to run continuously
MIN16118
Service Bulletin/Repair Instructions
vehicles may have additional air brake fittings installed that are not required.
REC16504
Service Bulletin/Repair Instructions
The connecting clip that connects the hand operated parking brake actuator cable to the intermediate parking brake cable may fail and result in unintended release of the parking brake.
IK-0500057
Service Bulletin/Repair Instructions
ALL HEAVY PLATFORM POWER STEERING FLUID PRODUCTION CHANGE
IK-0500056
Service Bulletin/Repair Instructions
NEW STEERING SHAFT HEX BOLT
MIN16102
Service Bulletin/Repair Instructions
Certain 500K Baud compliant Body Control Module replacement
MIN16104
Service Bulletin/Repair Instructions
Certain vehicles with Exempt Emissions Label.
IK1900228
Service Bulletin/Repair Instructions
2010 AND NEWER VEHICLE AIR CONDITIONING DIAGNOSTICS (START HERE)
IK1600023
Service Bulletin/Repair Instructions
MIRROR REPAIR PROCEDURES AND REPLACEMENT PARTS AVAILABILITY
IK0800463
Service Bulletin/Repair Instructions
HIGH OR SPIKING VOLTAGE ONLY WITH LEECE-NEVILLE ALTERNATOR USING REMOTE VOLTAGE SENSE