RoadVitals

2023 Ic Bus Cesb

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

NHTSA has issued a “park outside” advisory affecting this model year.

Campaign 25V503000. Confirm whether your specific vehicle is covered using its VIN before acting on this.

Check your VIN on NHTSA.gov
Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
2
+1 complaint in 30 days
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
17
Latest Mar 19, 2026
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 2 NHTSA owner-reported complaints for the 2023 Ic Bus Cesb, most frequently naming the body & structure and engine categories. 17 safety recalls have been issued covering this model year; and 88 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Body & structure150.0%
  • Engine150.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

17 campaigns cover this model year

View all 17

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
26V168000

STRUCTURE:BODY; STRUCTURE:CRITICAL FASTENERS

Mar 19, 2026
2,874 units potentially affected
The defect: 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."
The risk: The body panels may separate during a crash, reducing structural integrity and increasing the risk of injury.
The remedy: 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.
International Motors, LLCManufacturer number 26504View on NHTSA.gov
26V111000

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

Feb 26, 2026
4,393 units potentially affected
The defect: 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.
The risk: A brake fluid leak can extend the distance required to stop, increasing the risk of a crash.
The remedy: 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.
International Motors, LLCManufacturer number 26502View on NHTSA.gov
25V783000

EQUIPMENT:OTHER:LABELS

Nov 13, 2025
142 units potentially affected
The defect: 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.
The risk: An incorrect GVWR may lead to unintentionally overloading the bus, increasing the risk of a crash.
The remedy: 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.
International Motors, LLCManufacturer number 25523View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Engine
Filed Sep 2, 2026

Exhaust system failure,terible exhaust leaks AT EXHAUST MANIFOLDS. Pipes wrapped in insulation and metal causing high temps which are distoring pipe shapes and colapsing systems. Also a fire hazard if any fluids leak on them. These units are 2021's thru 2023's We have been in touch with International Dealer with no avail or help. They give all kinds of why's but no answers. They tell us to replace with same system at 11,000 dollars. These pipes are on 8.8 litre engine. Available for inspection. Yes dealer did see the problem.

NHTSA ID
11761570
Incident
Jul 7, 2026
Body & structure
Filed May 20, 2025

The roof leaks in several areas. The water gets on the floor and seats increasing the chance that children will slip and fall on the wet floors and seats. This has been to the dealer more than once but the roofs still leak. We have more than one bus of the same age that leak

NHTSA ID
11662097
Incident
May 5, 2025

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

IK1201493

POWER TRAIN

The purpose of this article is to provide updated repair guidelines for the engine oil pan leak on all 8.8L gasoline and LPG engines. Engine oil can leak from the rear of the engine oil pan due to an excessive gap in the sealing area between the engine oil pan and the engine block.

IK2200156

STRUCTURE:BODY

This document provides guidance for troubleshooting issues with the entrance door of the Next Gen CE Bus. While the primary focus is on achieving a properly adjusted latching entrance door, it also includes additional helpful tips. Please note that this document is not exhaustive and only addresses some common issues and their resolutions. For more detailed information, refer to Service Manual 0001283373. Also, please check the Service Portal for any open field campaigns for door improvements, such as AFC 26901 for a larger set screw. If this article or the Service Manual does not cover the topic, please create a case file for more specific assistance.

26102

ELECTRICAL SYSTEM

This document will guide the user through installing 12V disconnect label to the battery door.

26101

ELECTRICAL SYSTEM

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.

26104

STRUCTURE:BODY

Entrance door set screw may loosen over time and with use.

IK1201493

POWER TRAIN

The purpose of this article is to provide updated repair guidelines for the engine oil pan leak on all 8.8L gasoline and LPG engines. Engine oil can leak from the rear of the engine oil pan due to an excessive gap in the sealing area between the engine oil pan and the engine block.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Ic Bus Cesb by model year
YearComplaintsRecallsInvestigationsIssue Index
2027060—
20260130—
20251140—
20240130—
2023Viewing2170—
2022590—
2021340—
20201120—
20190160—
20180120—
20170140—
20161150—
2015000—
2014000—
2013000—
2012000—
2011010—
2010010—
2009150—
2008280—
20070150—
20062110—
2005060—
2004050—
2003040—
2002020—
2001000—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.