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 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.
Navistar, Inc. (Navistar) is recalling certain 2019-2020 IC RE and 2020 IC CE school buses equipped with feature code 48PZP, 48PZR, 48RZY, 48SXV, or 48SZG (Prolo emergency exit roof hatches). Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable use.
Risk and remedy
Risk
If the roof hatch external handle breaks, in the event of an emergency, the hatch cannot be easily opened from outside the vehicle, increasing the risk of injury.
Remedy
Navistar will notify owners, and dealers will replace the outer handle, free of charge. The recall began October 7, 2019. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 19513.
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
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
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
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