Model year

2021 International RH

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recall campaigns covering this model year9222k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 International RH by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

9 recall campaigns cover the 2021 International RH

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2021 International RH
CampaignFiledSubjectComponentVehiclesRemedy
24V-818Oct 31, 2024Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop workingElectrical system105,276Software update
23V-370May 25, 2023Anti-lock brake system (ABS) indicator light does not remain illuminated when a malfunction exists, and when the vehicle's ignition switch is on,…Brakes59,684Software update
23V-353May 18, 2023Back-up lights offer low visibility when the vehicle is in reverse and bobtail modeLighting32,880Part replacement
23V-220Mar 30, 2023Engine control module (ECM) may be unresponsive to throttle pedal application, which can cause the vehicle to unexpectedly slow to idle speed on…Engine and cooling770Software update
23V-119Feb 23, 2023Software error in the Body Control Module (BCM) may allow the vehicle to overcome the park brake during power-take-off (PTO) operationElectrical system4,199Software update
22V-691Sep 15, 2022Connecting rod wrist pin may crack, resulting in connecting rod failureEngine and cooling7,918Software update
21V-281Apr 22, 2021Wrist pin may crack and cause connecting rod failureEngine and cooling10,038Software update
21V-227Apr 1, 2021Retainer was not properly seated in the SC-3 single check valve and may not provide source air isolation when pressure is appliedBrakes845Part replacement
21V-226Apr 1, 2021Spring inside the spring brake chamber may allow the pressure plate to shift and wear a hole through the diaphragmBrakes615Part replacement
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2021 International RH

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    Service bulletins

    144 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

    • IK1201526 Jul 2, 2026 · Service Bulletin/Repair Instructions
      This document will guide the user through the parts and information related to A26B resonator removal and EGR cross-over tube installation.
    • IK0800560 Jun 9, 2026 · Service Bulletin/Repair Instructions
      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 OE…
    • IK1201516 May 21, 2026 · Service Bulletin/Repair Instructions
      This document will guide the user through parts information and installation instructions for the IMP Isolation Kit.
    • 26101 May 22, 2026 · Service Campaign
      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 Apr 23, 2026 · Service Bulletin/Repair Instructions
      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 103…
    • IK2600297 Apr 15, 2026 · Service Bulletin/Repair Instructions
      This document enables technicians to: 1. Accurately identify International® A26B engine control systems. 2. Understand the programming requirements and system behavior. 3. Perform programming tasks independently without needing technical support.
    • IK2600298 Apr 15, 2026 · Service Bulletin/Repair Instructions
      This document enables technicians to: 1. Accurately identify International® A26A engine control systems. 2. Understand the programming intricacies related to these systems. 3. Perform programming tasks independently without needing technical support.
    • 26101 Apr 7, 2026 · Service Campaign
      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.
    • IK1201526 Mar 4, 2026 · Service Bulletin/Repair Instructions
      This document will guide the user through the parts and information related to A26B resonator removal and EGR cross-over tube installation.
    • IK1500109 Feb 21, 2026 · Service Bulletin/Repair Instructions
      This document will guide the user through supplemental fuel system diagnostics on 2017 A26 ESN 4500000 - 4599999.
    • IK1201526 Feb 6, 2026 · Service Bulletin/Repair Instructions
      This document will guide the user through the parts and information related to A26B resonator removal and EGR cross-over tube installation.
    • IK4300035 Feb 3, 2026 · 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…
    • IK2600255 Jan 26, 2026 · 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 103…
    • IK2600090 Feb 5, 2026 · Other
      New CARB Idle Reduction Change Request
    • IK2600047 Jan 2, 2026 · Service Bulletin/Repair Instructions
      Engine replacements for all International engines will need to follow this procedure.
    • IK2600279 Dec 19, 2025 · 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
    • IK1600272 Dec 19, 2025 · 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.
    • IK1201009 Dec 18, 2025 · Service Bulletin/Repair Instructions
      In some geographic areas, ambient temperatures reaching below 40°F (4°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…
    • IK1201516 Dec 17, 2025 · Service Bulletin/Repair Instructions
      This document will guide the user through diagnosing an intermittent shutdown complaint on a 2021 A26 (A26B), whether the vehicle is coming to a stop or sitting at idle.
    • IK2600253 Dec 9, 2025 · Service Bulletin/Repair Instructions
      This document guides dealer technicians through the programming process for an A26a (2017-2021) engine swap (both NEU and new engines).
    • IK1201009 Nov 6, 2025 · 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 …
    • IK0800689 Nov 21, 2025 · 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 …
    • IK0800688 Nov 5, 2025 · Service Bulletin/Repair Instructions
      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,…
    • IK0600030 Dec 5, 2025 · 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.)
    • IK1201527 Oct 15, 2025 · Service Bulletin/Repair Instructions
      This document will guide the user through diagnosing the fuel/soot mixture found in the EGR system.
    • IK1500111 Sep 15, 2025 · Service Bulletin/Repair Instructions
      This document will guide the user through the parts and information related to A26B resonator and EGR cross-over tube installation.
    • IK3400001 Aug 28, 2025 · Service Bulletin/Repair Instructions
      Title: Service Portal iKNow Feedback Case Types Applies To: All
    • IK1400005 Aug 25, 2025 · Service Bulletin/Repair Instructions
      Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
    • IK1900022 Jul 18, 2025 · Service Bulletin/Repair Instructions
      Title: A/C Refrigerant and Oil Capacities Applies To: All current models
    • IK1201501 Jul 14, 2025 · Service Bulletin/Repair Instructions
      Title: S13 Gear Housing Leak (By The Air Compressor) Applies To: S13 Integrated Powertrain LT RH HX
    • IK1200716 Jul 7, 2025 · 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 …
    • IK0900157 Jul 17, 2025 · Service Bulletin/Repair Instructions
      Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
    • IK1201519 Jun 24, 2025 · Service Bulletin/Repair Instructions
      Title: Replacing the Crankshaft Gear on S13 Engines
    • IK1201511 May 11, 2025 · Service Bulletin/Repair Instructions
      Title: Supplemental A26 MAF Fault Diagnostics Applies To: All A26 Engines
    • IK0500054 Jun 4, 2025 · Service Bulletin/Repair Instructions
      Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
    • IK2600069 May 20, 2025 · Service Bulletin/Repair Instructions
      Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
    • IK0300078 May 9, 2025 · 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.
    • IK1200716 Apr 24, 2025 · Emissions
      Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check
    • IK2600279 Apr 29, 2025 · Service Bulletin/Repair Instructions
      Switch Pack Programming Troubleshooting Information
    • IK0800679 Mar 27, 2025 · Service Bulletin/Repair Instructions
      Title: Battery Disconnect Switch Replacement - Best Practices Applies To: All Models with Battery Disconnect Switch
    • IK0900156 Mar 7, 2025 · Service Bulletin/Repair Instructions
      Title: Connecting an Auxiliary APU to the S13 Coolant System
    • IK1201511 Mar 26, 2025 · Service Bulletin/Repair Instructions
      Title: Supplemental A26 MAF Fault Diagnostics
    • IK1400023 Oct 8, 2024 · 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 i…
    • IK12101498 Sep 20, 2024 · Service Bulletin/Repair Instructions
      This article will call out those VINs that are equipped with the shim, and if and when the shim should be used as a field repair solution.
    • IK0500021 Aug 15, 2024 · Service Bulletin/Repair Instructions
      This document will guide the user how to properly diagnose or repair a truck equipped with a Sheppard's steering gear with Auto Relief Plungers.
    • iK1500095 Jul 2, 2024 · 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.
    • iK1600269 Jul 2, 2024 · Service Bulletin/Repair Instructions
      This document will guide the user through various field repairs to eliminate the squeaks, rattles knocking of the engine hood on International LTs and RHs
    • RC5000005 May 23, 2024 · Service Bulletin/Repair Instructions
      Update to International Preventative Maintenance
    • IK2600265 May 28, 2024 · Service Bulletin/Repair Instructions
      This document will guide the user on what to do when they receive a fault code after programming an ECM on A 26A engines
    • VER 23521 Apr 15, 2024 · Service Bulletin/Repair Instructions
      Certain International vehicles built with A26 engines does meet the emission requirements for J1939-Stationary Test
    • IK0400037 Apr 29, 2024 · Service Bulletin/Repair Instructions
      This document is to guide users to eliminate brake pedal rattle noise.
    • IK08000403 Apr 24, 2024 · Service Bulletin/Repair Instructions
      This document details the procedure that must be followed to ensure proper alternator troubleshooting.
    • IK0800482 Apr 24, 2024 · Service Bulletin/Repair Instructions
      This document covers battery diagnostics, maintenance and storage requirement.
    • ik0800664 Feb 15, 2024 · Service Bulletin/Repair Instructions
      LT & RH aftertreatment PDM F2 fuse falling out or cracking.
    • IK0800407 Feb 21, 2024 · Service Bulletin/Repair Instructions
      Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.
    • IK1201406 Jan 24, 2024 · Service Bulletin/Repair Instructions
      A26 & S13 Fuel Gelling
    • IK0800664 Dec 21, 2023 · Service Bulletin/Repair Instructions
      Aftertreatment PDM F2 fuse falling out or cracking.
    • IK0800663 Dec 20, 2023 · Service Bulletin/Repair Instructions
      Corroded TPMS Receiver / Repeater Module Connectors; only models equipped with feature code 16VLS or 16VVM
    • 23111 Dec 19, 2023 · Service Bulletin/Repair Instructions
      Certain LT and RH series trucks with Lane Keep Assist (LKA) may have outdated software in the LKA Electronic Control Unit (ECU), resulting in false positive fault codes. A software update will resolve this issue.
    • IK1600260 Nov 16, 2023 · Service Bulletin/Repair Instructions
      Tire Pressure Monitoring system; Feature Codes 16VLS, 16VUY, 16VVA, 16VVM, or 16VUZ
    Source: NHTSA manufacturer communications files.