2022 IC Bus Cesb Technical Service Bulletins

99 technical service bulletins (TSBs) are on record for the 2022 IC Bus Cesb. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11036615Aug 20, 2026Transmission and drivetrain. 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.
• 11035942Jul 7, 2026Electrical system. This document will guide the user through installing 12V disconnect label to the battery door.
• 11033229May 22, 2026Electrical 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 Certain International® trucks and IC BusTM CE Series buses may have out of date BCM programing that may cause erroneous fault codes after a vehicle sits for 2 or 3 days.
• 11033353May 4, 2026Transmission and drivetrain. 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.
• 11032498Apr 23, 2026Electrical system. This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. Customer requested changes will be approved in accordance with the requirements specified in 40 CFR Part 1037 to ensure continued compliance with greenhouse gas (GHG) regulations.
• 11032496Apr 23, 2026Fuel system. This document is for Diesel buses MY2020, MY2021, MY2022, MY2023, and MY2024 specifically built between 11/30/20 and 5/18/23 that are experiencing fuel leaks at the fuel tank cap for not being seated fully, and for MY2024 and MY2025 buses built between 1/2/24 and 9/19/25 for fuel necks being loose.
• 11032456Apr 7, 2026Electrical 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 Certain International® trucks and IC BusTM CE Series buses may have out of date BCM programing that may cause erroneous fault codes after a vehicle sits for 2 or 3 days.
• 11028361Feb 5, 2026Engine. New CARB Idle Reduction Change Request
• 11029461Feb 3, 2026Electrical system. This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files. It allows users to quickly load files either manually or directly from the Diamond Logic Builder Vehicles folder using VIN-based selection. As files are added or removed, the comparison runs automatically with no manual action required.
• 11028362Jan 26, 2026Engine. This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. Customer requested changes will be approved in accordance with the requirements specified in 40 CFR Part 1037 to ensure continued compliance with greenhouse gas (GHG) regulations.
• 11028359Jan 2, 2026Engine. Engine replacements for all International engines will need to follow this procedure.
• 11027310Dec 19, 2025Body and structure. This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.
• 11027299Dec 12, 2025Fuel system. This article will guide the reader through steps to help gain a general understanding of the LPG Gen 1 and Gen 2 fuel supply systems, as well as proper fuel system checks to obtain boost pressure.
• 11026148Dec 5, 2025Transmission and drivetrain. This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes. (Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)
• 11026200Nov 8, 2025Visibility (wipers, defrost, mirrors). This document will guide the user through repairing a Next Gen CE Bus Driver's Window with loose, displaced, or falling-out upper or lower seals. See symptoms below for an example of the issue.
• 11026198Nov 7, 2025Other or unknown. IC Bus Operator's Manuals
• 11026190Nov 6, 2025Body and structure. In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of humidity, an operator may experience engine stalling, low performance, and or poor aftertreatment performance. This is caused by condensation accumulating and freezing within the Charge Air Cooler (CAC); affecting air flow into the engine.
• 11024944Oct 10, 2025Engine. This document will guide users through supplemental oil consumption diagnostics for 8.8L PSI gas and propane engines.
• 11023644Sep 18, 2025Engine, Fuel system. The purpose of this article is to provide updated guidance regarding PSI 8.8L repair versus engine replacement.
• 11023637Sep 15, 2025Electrical system, Body and structure. This document provides guidance for troubleshooting issues with the entrance door.
• 11022447Aug 28, 2025Other or unknown. Title: Service Portal iKNow Feedback Case Types Applies To: All
• 11022444Aug 26, 2025Other or unknown. Title: Electric Vehicle Air Dryer Operation
• 11022310Aug 25, 2025Transmission and drivetrain. Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
• 11022445Aug 13, 2025Transmission and drivetrain. Title: Driveline Vibration w/SPL170 Applies To: 2021 - 2025 International® IC Bus® Electric CE Series
• 11021612Jul 29, 2025Electrical system. Title: Post Trip Inspection wont disarm while pressing switch Applies To: Vehicles Marked In Service Portal
• 11021609Jul 18, 2025Other or unknown. Title: A/C Refrigerant and Oil Capacities Applies To: All current models
• 11021605Jul 18, 2025Electrical system. Title: Radio Clock is Freezing Applies To: Next Gen CE Bus
• 11021606Jul 17, 2025Other or unknown. Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
• 11021610Jul 11, 2025Body and structure. Title: Next Gen CE Bus Starter Interlock Dash Chime Applies To: Next Gen CE Bus with starter interlock feature built prior to 2/19/25
• 11020395Jun 26, 2025Other or unknown. Title: Servicing Air Conditioning Systems on Electric Vehicles
• 11019106Jun 4, 2025Steering. Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
• 11019103May 20, 2025Other or unknown. Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
• 11017816Apr 22, 2025Other or unknown. Title: Factory Installed Air Conditioning, EC4.0 System BE, CE, FE, RE Bus Models
• 11017808Apr 21, 2025Electrical system. Title: 6090/6091 Connector Damage Applies To: IC Bus® Electric CE Series, International® eMV™ Series
• 11010428Oct 8, 2024Suspension. This 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.
• 11006672Aug 6, 2024Engine. This document will guide a user to replace and reroute Charge Air Cooler (CAC) for vehicles built with the Cummins ISB and B6.7 engines.
• 11000880May 22, 2024Engine. The purpose of this article is to provide updated repair guidelines for the engine oil pan leak on all 8.8L gasoline and LPG.
• 10253979Apr 29, 2024Brakes. This document is to guide users to eliminate brake pedal rattle noise.
• 10253970Apr 24, 2024Engine cooling. This document details the procedure that must be followed to ensure proper alternator troubleshooting.
• 10253960Apr 24, 2024Electrical system. This document covers battery diagnostics, maintenance and storage requirement.
• 10246231Nov 21, 2023Electrical system. J1939 Data Link Source Address Information
• 10243595Sep 29, 2023Steering, Suspension. Diagnosis of chassis wander complaints.
• 10243604Sep 28, 2023Visibility (wipers, defrost, mirrors). Webasto Thermo Pro 90 Service and Repair Manual; Only CE bus with feature code 0049JAN or 0049JAP
• 10243596Sep 26, 2023Brakes. General Wheel Speed Sensor Troubleshooting
• 10243605Sep 25, 2023Seats. Bus seat back foam inspection guidelines
• 10243601Sep 22, 2023Electrical system, Engine cooling. Cummins B6.7 Grid Heater Relay
• 10243610Sep 7, 2023Engine cooling. How to request a horsepower quote; all International and Cummins engines
• 10241560Aug 18, 2023Seats. Luggage rack upholstery repair; only busses equipped with luggage rack.
• 10241553Aug 17, 2023Body and structure. These certain buses may have roof water leaks resulting from incorrect assembly described in Roof Joint Recalls 23501 and 23502.
• 10241555Aug 14, 2023Electrical system. J1939 Data Link Source Address Information

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