2021 Ic Bus Resb
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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These records cover every 2021 Ic Bus Resb. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
3 recalls name the 2021 Ic Bus Resb. Newest first.
International Motors, LLC (International) is recalling certain 2016-2026 IC Bus CESB and 2016-2021 RESB school buses. The underfloor reinforcement may not have been installed, compromising the structural integrity of the buses. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 210, "Seat…
Risk and remedy
Risk
Reduced structural integrity may increase the risk of injury in a crash.
Remedy
Dealers will inspect and install a reinforcement channel as necessary, free of charge. Owner notification letters were mailed December 8, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25514.
Navistar, Inc. (Navistar) is recalling certain 2021-2024 IC Bus RE, 2022-2024 IC Bus CE, and IC Bus EV school buses. The anti-lock brake system (ABS) indicator light does not remain illuminated when a malfunction exists, and when the vehicle's ignition switch is on, and the vehicle is in motion. As such, these vehicles fail to comply with the requirements…
Risk and remedy
Risk
An ABS indicator light that fails to remain illuminated will not alert the driver of an ABS malfunction, which could increase the risk of a crash.
Remedy
Dealers will update the software, free of charge. Owner notification letters are expected to be mailed July 24, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23516.
Navistar, Inc. (Navistar) is recalling certain 2019-2021 IC Bus RE School Buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Risk and remedy
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11010428This 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.
- 10251414Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.
- 10251409Suggested alignment target values when performing a vehicle axle alignment.
- 10246231J1939 Data Link Source Address Information
- 10243610How to request a horsepower quote; all International and Cummins engines
- 10243605Bus seat back foam inspection guidelines
- 10243601Cummins B6.7 Grid Heater Relay
- 10243596General Wheel Speed Sensor Troubleshooting
- 10243595Diagnosis of chassis wander complaints.
- 10241560Luggage rack upholstery repair; only busses equipped with luggage rack.
- 10241555J1939 Data Link Source Address Information
- 10241554J1939 Data Link Troubleshooting
- 10238862Bus Diesel fuel Cap Leaks; only models built 11/30/2020 through 05/18/2023
- 10238858QLS Emergency Calibration Revert Process
- 10237462QLS Emergency Calibration Revert Process
- 10237447Per 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.
- 10234015Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
- 10234000Starter diagnostics and warranty claim procedure for all engines and all chassis EXCLUDING vehicles equipped with PSI engines or Cummins ISB engine with Allison transmissions
- 10232612Air Compressor Inlet Hose Chaffing / Leaking
- 10231068QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 engines
- 10227455J1939 Data link source address information
- 10227446QLS Emergency Calibration. applies to 2016 and newer Cummins B6.6, X15, and L9 engines and all A26 engines
- 10222490Pico Scope CCOS (Crankcase Separator Test)
- 10219330PicoScope Test One Channel RCT
- 10219325PicoScope Test Resistance and Ohmmeter
- 10219319PicoScope Test for Datalink (CAN) Health Shorts & opens
- 10219314PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
- 10213186Certain IC RE school and commercial buses may have outdated BCM calibration that could result in the ABS indicator light illuminating at all times
- 10204141Greenhouse Gas Phase 2 Regulatory Compliance Implementation
- 10204139Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
- 10204135QLS Emergency Calibration; Models equipped with 2016 and newer Cummins B6.7, X15 and L9 engines or International A26 engine.
- 10202882How to obtain As built parameter list
- 10202871QLS Emergency Calibration; Models with 2016 Cummins ISX, A26 and EPA 2017 and newer Cummins X15, L9, or B6.7 engines
- 10201758Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
- 10201757DuraStar and MV Air Compressor Inlet Hose Rub. Only models equipped with Cummins ISB or B6.7 engines
- 10201756QLS Emergency Calibration. Only models with EPA 2017 and newer Cummins X15, L9, or B6.7 engines
- 10199915General wheel speed sensor troubleshooting
- 10198708Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
Every Ic Bus Resb model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.