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2025 Ic Bus Cecb TSBs

22 Technical Service Bulletins across 11 categories

Engine

6 bulletins
11028362

This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature.

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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.

11028361

New CARB Idle Reduction Change Request

11028359

Engine replacements for all International engines will need to follow this procedure.

11027309

In some geographic areas, ambient temperatures reaching below 40F (4C), including high levels of humidity, an operator...

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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. This article lists currently available winter front covers that can be installed on the front grille and bumper to reduce cold air flow to the engine compartment.

11026190

In some geographic areas, ambient temperatures reaching below 15F (-10 C), including high levels of humidity, an...

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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. This article lists all the currently available winter front covers that can be installed on the front grille and bumper to reduce cold air flow to the engine compartment.

11019103

Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines

Other

5 bulletins
11026198

IC Bus Operator's Manuals

11026148

This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes.

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(Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)

11022310

Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles

11021606

Title: Fan belt replacement guidelines for frayed edges Applies To: All Models

11017808

Title: 6090/6091 Connector Damage Applies To: IC Bus Electric CE Series, International eMV Series

Infotainment

2 bulletins
11029461

This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files.

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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. The program presents results in an interactive table that shows feature codes, descriptions, access levels, and whether each feature is present in each selected file. Built-in search, filtering, and sorting make it easy to locate specific features or focus only on differences between files. Column visibility can be customized to show or hide descriptions and access information as needed. Users can remove files individually or clear all files at once, with results updating instantly. The tool also includes reporting and export options that reflect exactly what is visible on screen, allowing results to be printed, copied, saved as text, or exported to CSV for use in Excel or other spreadsheet tools. Overall, the program streamlines the process of comparing vehicle feature configurations, helping users quickly identify differences, validate setups, and document results without manual comparison or external tools.

11021605

Title: Radio Clock is Freezing Applies To: Next Gen CE Bus

HVAC & Climate

2 bulletins
11021609

Title: A/C Refrigerant and Oil Capacities Applies To: All current models

11017816

Title: Factory Installed Air Conditioning, EC4.0 System BE, CE, FE, RE Bus Models

Fuel System

1 bulletin
11035955

This document provides guidance for troubleshooting issues with the entrance door of the Next Gen CE Bus.

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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.

Brakes

1 bulletin
11027310

This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and...

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windshields using an ultrasonic sound detector.

Body & Paint

1 bulletin
11026200

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.

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See symptoms below for an example of the issue.

Pre-Delivery & Maintenance

1 bulletin
11022447

Title: Service Portal iKNow Feedback Case Types Applies To: All

Hybrid & EV

1 bulletin
11022444

Title: Electric Vehicle Air Dryer Operation

Electrical

1 bulletin
11021610

Title: Next Gen CE Bus Starter Interlock Dash Chime Applies To: Next Gen CE Bus with starter interlock feature built...

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prior to 2/19/25

Transmission

1 bulletin
11019106

Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears