2023 IC Bus Cesb: recalls and complaints

NHTSA advisory: park outsideCampaign 25V503000. NHTSA received the report on 6 Aug 2025. 16,553 units. Service Brakes, Hydraulic / Fluid

Remedy of campaign 25V503000, in the NHTSA record

Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a silicone black jumper harness, free of charge. Owner notification letters were mailed December 15, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25510. Vehicles previously repaired under 23V398 will need to have the new remedy completed.

NHTSA advisory: park outsideCampaign 23V398000. NHTSA received the report on 2 Jun 2023. 15,398 units. Service Brakes, Hydraulic / Fluid

Remedy of campaign 23V398000, in the NHTSA record

Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the brake pressure switch assembly and if necessary, the wire harness or fuse, free of charge. Owner notification letters were mailed September 29, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23518.

1 more campaign has an NHTSA advisory. The recall campaigns section shows each one.

Do-not-drive advisory: A mark on a recall campaign in the NHTSA recall file. This site shows the mark as NHTSA sets it.

Park-outside advisory: A mark on a recall campaign in the NHTSA recall file. This site shows the mark as NHTSA sets it.

NHTSA lists 17 recall campaigns for the 2023 IC Bus Cesb. The newest campaign is 26V168000. NHTSA received the report on 19 Mar 2026. The NHTSA record gives the component Structure / Critical Fasteners. NHTSA has 2 complaints on file for this model year.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 26V168000, in the NHTSA record

Dealers will inspect and repair the interior vertical joint as necessary, free of charge. Owner notification letters were mailed May 4, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 26504. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 11, 2026.

NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on 1 Oct 2026. Complaint file through 30 Sep 2026. Recall file through 30 Sep 2026.

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

17 campaigns, newest first. 126,543 units in total.

26V16800019 Mar 2026Structure / Critical Fasteners
26V11100026 Feb 2026Service Brakes, Hydraulic / Foundation Components / Hoses, Lines/Piping, and Fittings
25V78300013 Nov 2025Equipment / Other / Labels
25V5800004 Sep 2025Structure / Body
25V5030006 Aug 2025Service Brakes, Hydraulic / FluidAdvisory
23V3980002 Jun 2023Service Brakes, Hydraulic / FluidAdvisory
23V37100025 May 2023Service Brakes, Air / Antilock / ABS Warning Light
23V06500010 Feb 2023Structure / Body / Roof and Pillars
22V9090008 Dec 2022Suspension / Multiple Axle / Torque Arm
22V86900023 Nov 2022Suspension / Critical Fasteners
22V87200023 Nov 2022Fuel System, Gasoline / Delivery / Hoses, Lines/Piping, and Fittings
22V87000023 Nov 2022Suspension / Critical Fasteners
22V61000010 Aug 2022Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm)
22V42900016 Jun 2022Steering
22V36700023 May 2022Steering / Steering Wheel/Handle BarAdvisory
22V28300027 Apr 2022Forward Collision Avoidance
21V83700025 Oct 2021Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm)

26V168000Received 19 Mar 2026. 2,874 units.
Structure / Critical Fasteners
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2023-2027 IC Bus CESB and 2025-2027 IC Bus EVSB school buses. The body panel joint may have been attached without sufficient epoxy coverage. As such these vehicle fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 221, "School Bus Body Joint Strength."
Consequence, in the NHTSA record
The body panels may separate during a crash, reducing structural integrity and increasing the risk of injury.
Remedy, in the NHTSA record
Dealers will inspect and repair the interior vertical joint as necessary, free of charge. Owner notification letters were mailed May 4, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 26504. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 11, 2026.
Report filed by International Motors, LLC. Manufacturer campaign number 26504. Owner notification date in the NHTSA record: 4 May 2026.
26V111000Received 26 Feb 2026. 4,393 units.
Service Brakes, Hydraulic / Foundation Components / Hoses, Lines/Piping, and Fittings
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2023-2027 IC Bus CESB school buses. The brake lines may have been installed with incorrect hardware, which can result in brake line damage and cause a leak.
Consequence, in the NHTSA record
A brake fluid leak can extend the distance required to stop, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will inspect and replace the brake lines and brake line retainers as necessary, free of charge. Owner notification letters were mailed April 27, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 26502. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning April 20, 2026.
Report filed by International Motors, LLC. Manufacturer campaign number 26502. Owner notification date in the NHTSA record: 27 Apr 2026.
25V783000Received 13 Nov 2025. 142 units.
Equipment / Other / Labels
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2023-2027 IC Bus CESB school buses. While carrying the maximum number of occupants, the bus may exceed Gross Vehicle Weight Rating (GVWR) when the fuel tank and fluid reservoirs are full.
Consequence, in the NHTSA record
An incorrect GVWR may lead to unintentionally overloading the bus, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will inspect and repair suspension as necessary, free of charge. Owner notification letters are expected to be mailed May 27, 2026. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25523.
Report filed by International Motors, LLC. Manufacturer campaign number 25523. Owner notification date in the NHTSA record: 27 May 2026.
25V580000Received 4 Sep 2025. 457 units.
Structure / Body
Defect, in the NHTSA record
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 Belt Assembly Anchorages" and 222, "School Bus Passenger Seating and Crash Protection."
Consequence, in the NHTSA record
Reduced structural integrity may increase the risk of injury in a crash.
Remedy, in the NHTSA record
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.
Report filed by International Motors, LLC. Manufacturer campaign number 25514. Owner notification date in the NHTSA record: 8 Dec 2025.
25V503000Received 6 Aug 2025. 16,553 units.
Service Brakes, Hydraulic / FluidPark-outside advisory
Defect, in the NHTSA record
International Motors, LLC (International) is recalling certain 2016-2024 IC Bus CESB school buses. The brake pressure switch assembly may leak brake fluid into the brake pressure switch's electrical components and cause an electrical short-circuit.
Consequence, in the NHTSA record
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy, in the NHTSA record
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a silicone black jumper harness, free of charge. Owner notification letters were mailed December 15, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25510. Vehicles previously repaired under 23V398 will need to have the new remedy completed.
Report filed by International Motors, LLC. Manufacturer campaign number 25510. Owner notification date in the NHTSA record: 15 Dec 2025.
23V398000Received 2 Jun 2023. 15,398 units.
Service Brakes, Hydraulic / FluidPark-outside advisory
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2016 and 2018-2024 IC Bus CE school buses. The brake pressure switch assembly may leak brake fluid into the brake pressure switch's electrical components and cause an electrical short-circuit.
Consequence, in the NHTSA record
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy, in the NHTSA record
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the brake pressure switch assembly and if necessary, the wire harness or fuse, free of charge. Owner notification letters were mailed September 29, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23518.
Report filed by Navistar, Inc.. Manufacturer campaign number 23518. Owner notification date in the NHTSA record: 29 Sep 2023.
23V371000Received 25 May 2023. 19,376 units.
Service Brakes, Air / Antilock / ABS Warning Light
Defect, in the NHTSA record
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 of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Consequence, in the NHTSA record
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, in the NHTSA record
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.
Report filed by Navistar, Inc.. Manufacturer campaign number 23516. Owner notification date in the NHTSA record: 18 Jul 2023.
23V065000Received 10 Feb 2023. 12,507 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2022-2024 IC Bus CE, 2022-2023 IC CE SBus, IC RE, and 2023 EV school buses. The roof panel may have been manufactured with insufficient joint strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength."
Consequence, in the NHTSA record
A school bus roof panel with insufficient joint strength may separate during a crash, increasing the risk of injury.
Remedy, in the NHTSA record
Dealers will add additional fasteners to secure the joints, free of charge. Owner notification letters are expected to be mailed April 3, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 23501.
Report filed by Navistar, Inc.. Manufacturer campaign number 23501. Owner notification date in the NHTSA record: 3 Apr 2023.
22V909000Received 8 Dec 2022. 6,948 units.
Suspension / Multiple Axle / Torque Arm
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2023 IC RE, IC EV, and 2023-2024 IC CE school buses. The fasteners that connect the transverse torque arm to the rear axle housing may have been tightened incorrectly, which can allow the rear axle to shift side to side.
Consequence, in the NHTSA record
A rear axle that moves side to side can cause a loss of handling and control, increasing the risk of a crash. In addition, a loose rear axle may cause vehicle instability during an evacuation in an emergency, increasing the risk of injury.
Remedy, in the NHTSA record
Dealers will replace and tighten the fasteners, free of charge. Owner notification letters are expected to be mailed February 6, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22527.
Report filed by Navistar, Inc.. Manufacturer campaign number 22527. Owner notification date in the NHTSA record: 6 Feb 2023.
22V869000Received 23 Nov 2022. 25,822 units.
Suspension / Critical Fasteners
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2021-2022 International CV, 2022-2023 International HV, 2023 IC 1300 FBC, CE, RE, TC, International MV, HX, LT, RH, and LoneStar vehicles. The hex flange lock nuts, used in the suspension and steering joints, were improperly heat treated and may lose tension over time.
Consequence, in the NHTSA record
A loss of tension in the steering and suspension joints may lead to steering instability and increase the risk of a crash.
Remedy, in the NHTSA record
Dealers will replace the hex flange lock nuts as necessary, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22524.
Report filed by Navistar, Inc.. Manufacturer campaign number 22524. Owner notification date in the NHTSA record: 20 Jan 2023.
22V872000Received 23 Nov 2022. 196 units.
Fuel System, Gasoline / Delivery / Hoses, Lines/Piping, and Fittings
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2023 IC CE vehicles. The fuel vapor line without the heat shield tubing may have been installed, exposing the line to heat from the exhaust system.
Consequence, in the NHTSA record
Heat exposure may cause the line to leak, increasing the risk of a fire.
Remedy, in the NHTSA record
Dealers will replace the fuel vapor line with heat shield tubing, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22526.
Report filed by Navistar, Inc.. Manufacturer campaign number 22526. Owner notification date in the NHTSA record: 20 Jan 2023.
22V870000Received 23 Nov 2022. 5,645 units.
Suspension / Critical Fasteners
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2023 IC CE, EV, and RE vehicles. The hex flange lock nuts, used in the suspension and steering joints, were improperly heat treated and may lose tension over time.
Consequence, in the NHTSA record
A loss of tension in the steering and suspension joints may lead to steering instability and increase the risk of a crash.
Remedy, in the NHTSA record
Dealers will replace the hex flange lock nuts as necessary, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22525.
Report filed by Navistar, Inc.. Manufacturer campaign number 22525. Owner notification date in the NHTSA record: 20 Jan 2023.
22V610000Received 10 Aug 2022. 33 units.
Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm)
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2023 IC CE School Buses. The engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall.
Consequence, in the NHTSA record
An unexpected engine stall can increase the risk of a crash.
Remedy, in the NHTSA record
Cummins will replace the ECM. Owner notification letters were mailed September 26, 2022. Owners may contact Navistar's customer service at 1-800-448-7825.
Report filed by Navistar, Inc.. Owner notification date in the NHTSA record: 26 Sep 2022.
22V429000Received 16 Jun 2022. 3,570 units.
Steering
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2022-2023 IC CE School Buses. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.
Consequence, in the NHTSA record
A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Interim owner notification letters were mailed August 15, 2022. Remedy parts are expected to become available in mid-October 2022. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 22514.
Report filed by Navistar, Inc.. Manufacturer campaign number 22514. Owner notification date in the NHTSA record: 10 Nov 2022.
22V367000Received 23 May 2022. 4,970 units.
Steering / Steering Wheel/Handle BarDo-not-drive advisory
Defect, in the NHTSA record
Navistar, Inc. is recalling certain 2022-2023 IC CE, IC RE, and 2023 IC EV school buses. The steering wheel retaining nut may have been tightened incorrectly, which can allow the steering wheel to loosen and detach from the steering column shaft.
Consequence, in the NHTSA record
A loose or detached steering wheel increases the risk of a crash.
Remedy, in the NHTSA record
Owners are advised not to drive their vehicles until the repair has been performed. Dealers will remove the steering wheel nut, apply thread locker, and reinstall the nut, free of charge. Owner notification letters were mailed on May 25, 2022. Owners may contact Navistar, Inc. customer service at (331) 332-1590. Navistar's number for this recall is 22511.
Report filed by Navistar, Inc.. Manufacturer campaign number 22511. Owner notification date in the NHTSA record: 25 May 2022.
22V283000Received 27 Apr 2022. 337 units.
Forward Collision Avoidance
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2022-2023 IC RE School Buses, and 2023 IC CE school buses built without a forward radar unit. The warning label notifying the driver that the collision mitigation system is inoperative may be missing.
Consequence, in the NHTSA record
Failure to warn the driver that the collision mitigation system is inoperative increases the risk of a crash.
Remedy, in the NHTSA record
Navistar will provide a warning label and installation instructions, free of charge. Owner notification letters were mailed June 14, 2022. Owners may contact Navistar customer service 1-800-4487825. Navistar's number for this recall is 22509.
Report filed by Navistar, Inc.. Manufacturer campaign number 22509. Owner notification date in the NHTSA record: 14 Jun 2022.
21V837000Received 25 Oct 2021. 7,322 units.
Engine and Engine Cooling / Engine / Engine Control Module (Ecu/Ecm)
Defect, in the NHTSA record
Navistar, Inc. (Navistar) is recalling certain 2020-2023 IC CE school buses. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down.
Consequence, in the NHTSA record
Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
Remedy, in the NHTSA record
Dealers will reprogram the ECM, free of charge. Owner notification letters notifying owners of the safety risk were mailed January 18, 2022. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 21507.
Report filed by Navistar, Inc.. Manufacturer campaign number 21507. Owner notification date in the NHTSA record: 18 Jan 2022.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

2 complaints, 2 component mentions.

A complaint can name more than one component. Each component that a complaint names is one component mention. This model year has fewer than 50 component mentions, so the table shows the number of mentions only.

2023 IC Bus Cesb: component mentions in complaints
Component		Mentions
Structure		1
Engine		1

Complaints that report a crash: 0
Complaints that report a fire: 0
Injuries in the complaints: 0
Deaths in the complaints: 0
Date of the newest complaint: 2 Sep 2026

These figures are the entries of the persons who sent the complaints.

Complaint: A report about a possible safety problem that a person sends to NHTSA. This site shows the number of complaints and not their text.

Complaints about the 2023 IC Bus Cesb, by the year NHTSA received them. The largest year is 2025, with 1 complaint.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

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Official channels

NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
NHTSA page of the 2023 IC Bus CesbThe recalls, the complaints and the investigations that NHTSA shows for this model year.

Cite this page

Recall Register. 2023 IC Bus Cesb: recalls and complaints. https://recallregister.com/vehicle/ic-bus/cesb/2023/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through 30 Sep 2026.

Sources

Source: NHTSA Office of Defects Investigation
Licence: US government work, public domain
Recall file through: 30 Sep 2026
Complaint file through: 30 Sep 2026
First complaint in the file: 1 Jan 1995
Manufacturer in the recall file: International Motors, LLC

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2023 IC Bus Cesb?: 126,543 units in 17 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the IC Bus Cesb have for all model years?: NHTSA lists 77 recall campaigns for the IC Bus Cesb, model years 2002 to 2027. 17 of them name the 2023 model year.
Which component do the complaints about the 2023 IC Bus Cesb name most often?: Structure: 1 of 2 component mentions.
Is an NHTSA investigation of the 2023 IC Bus Cesb open?: The NHTSA investigation file has no investigation that names this model year.