The worst 2027 Ic Bus Cesb problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
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Recalls 6
Structure: body
- What is wrong
- International Motors, LLC (International) is recalling certain 2025-2027 IC Bus EVSB and CESB school buses. The driver's window panel and entrance door vertical joints may have been attached without sufficient epoxy coverage. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 221, "School Bus Body Joint Strength."
- Risk
- The body panels may separate during a crash, reducing structural integrity and increasing the risk of injury.
- Remedy
- Dealers will install rivets along the driver's side window seam and entrance door seam, free of charge. Owner notification letters were mailed September 8, 2026. Owners may contact International's customer service at 1‑800‑448‑7825. International's number for this recall is 26511.
Recall number 26V460000 · Recall details
Equipment adaptive/mobility: wheelchair restraints/securement: critical fasteners
- What is wrong
- International Motors, LLC (International) is recalling certain 2027 IC Bus CESB school buses. The retractors may not lock, preventing the wheelchair from being properly secured.
- Risk
- An unsecured wheelchair can move during transit, increasing the risk of injury.
- Remedy
- Dealers will inspect and replace the retractors, free of charge. Owner notification letters were mailed July 13, 2026. Owners may contact International's customer service at 1‑800‑448‑7825. International's number for this recall is 26508.
Recall number 26V364000 · Recall details
Structure: critical fasteners
- What is wrong
- 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."
- Risk
- The body panels may separate during a crash, reducing structural integrity and increasing the risk of injury.
- 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 beginning May 11, 2026.
Recall number 26V168000 · Recall details
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings
- What is wrong
- 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.
- Risk
- A brake fluid leak can extend the distance required to stop, increasing the risk of a crash.
- 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 beginning April 20, 2026.
Recall number 26V111000 · Recall details
Equipment adaptive/mobility: wheelchair restraints/securement: latch/anchor:
- What is wrong
- International Motors, LLC (International) is recalling certain 2026-2027 IC Bus CESB school buses. The retractors may not lock, preventing the wheelchair from being properly secured.
- Risk
- An unsecured wheelchair can move during transit, increasing the risk of injury.
- Remedy
- Dealers will inspect and replace the retractors as necessary, free of charge. Owner notification letters were mailed February 16, 2026. Owners may contact International's customer service at 1‑800‑448‑7825. International's number for this recall is 25526. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on beginning February 9, 2026.
Recall number 25V879000 · Recall details
Equipment: other: labels
- What is wrong
- 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.
- Risk
- An incorrect GVWR may lead to unintentionally overloading the bus, increasing the risk of a crash.
- 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.
Recall number 25V783000 · Recall details
Technical service bulletins for the 2027 Ic Bus Cesb 15
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This article provides service part information for replacing a cracked gauge cluster lens
- This article provides guidance to dealership personnel, Technical Services personnel, Dealer Service...
- Certain 2025 thru 2027 IC Bus™ CE Series school buses and IC Bus™ Electric CE Series school buses entrance...
- This document provides guidance for assessing the feasibility of implementing a customer-requested change...
- This document is intended to inform dealers, technicians, parts departments, and customers of a change...
- New CARB Idle Reduction Change Request
- This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files
- Engine replacements for all International engines will need to follow this procedure.
- This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle...
- In some geographic areas, ambient temperatures reaching below 40°F (4°C), including high levels of...
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Questions about the 2027 Ic Bus Cesb
Is the 2027 Ic Bus Cesb reliable?
Owners have filed 0 complaints about the 2027 Ic Bus Cesb.
What is the most common problem with the 2027 Ic Bus Cesb?
There are not enough complaints to tell.
How many recalls does the 2027 Ic Bus Cesb have?
6 recalls, covering structure, equipment adaptive/mobility and service brakes, hydraulic.
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