25108 Service Campaign

FIELD SERVICE CAMPAIGN – 25108

01 January 2026
SUBJECT:

IC Bus™ Electric CE Series school bus Vehicle Control Unit (VCU) update

MODELS INVOLVED:

IC Bus™ Electric CE Series school bus

DEFECT DESCRIPTION:

Certain IC Bus™ Electric CE Series school buses may need to have the VCU calibrated

to the latest calibration.

ELIGIBILITY:

This procedure applies ONLY to vehicles marked in the International® Service PortalSM

with FSC 25108. Also complete any other open campaigns listed on the Service Portal

at this time.

TOOLS REQUIRED:

Description
Tool Number
EZ-Tech or Electronic Service Tool (EST) with Service

Diagnostics Solutions (SDS) Software

®
Electric Vehicle “Y” Adapter Cable

Battery Charger 55 AMP
N/A

08-801-01

PSC550CC
Table 1 Tools Information
PARTS REQUIRED:

No required parts.
© 2026 IC Bus, LLC. All rights reserved. All marks are trademarks of their respective owners.
Page 1
WORK INSTRUCTIONS

WARNING! To prevent personal injury and / or death, or damage to property, park

vehicle on hard flat surface, turn the engine off, set the parking brake, and install

wheel chocks to prevent the vehicle from moving in both directions.

WARNING! To prevent personal injury and / or death, always wear safe eye

protection when performing vehicle maintenance.

WARNING! To prevent personal injury and / or death, or damage to property, keep

flames or sparks away from vehicle and do not smoke while servicing the

vehicle’s batteries. Batteries expel explosive gases.

WARNING! To prevent personal injury and / or death, wear and use approved

high-voltage Personal Protective Equipment (PPE) when near a high-voltage

electric vehicle. Inspect PPE before use. Do not use gloves or other PPE with

expired dates, holes, cracks or damage. NEVER touch energized ORANGE highvoltage cables or high-voltage components without wearing approved highvoltage PPE.

WARNING! To prevent personal injury and / or death, or damage to property, read

all information in the Safety Information and High-Voltage Safety sections of the

service manual.

1. Turn ON 12V disconnect switch.

2. Turn ON high-voltage disconnect switch.

3. Park vehicle on a level surface.

4. Shift transmission into Park or Neutral and set parking brake.

5. Turn ignition to Key OFF position.

6. Install wheel chocks.

7. Connect battery charger / maintainer to vehicle battery.

8. Using Service Diagnostics Solutions (SDS), collect health report by selecting

Arrival in Health Report – Scan Checkpoint box.
© 2026 IC Bus, LLC. All rights reserved. All marks are trademarks of their respective owners.
Page 2
9. Clear inactive / previously active fault codes by selecting Faults button in action

bar.

10. On the right-side vehicle panel, the current VCU calibration ID can be viewed by

expanding the VCU module.

11. If an updated calibration is available, the Update Module Software Button at the

top-right panel will be available.
Figure 1. SDS Update VCU
1. Update module software button

2. Calibration update

3. Update
12. Select Update Module Software (Figure 1, Item 1).

13. Select the Calibration update (Figure 1, Item 2).

14. Select Update (Figure 1, Item 3).

15. Follow all on-screen instructions.

16. After updating the calibration, clear all fault codes and cycle the ignition key.
© 2026 IC Bus, LLC. All rights reserved. All marks are trademarks of their respective owners.
Page 3
17. Disconnect interface connector from diagnostic port.

18. Disconnect battery charger / maintainer from vehicle battery.

19. Close and latch hood.

20. Remove wheel chocks.
LABOR INFORMATION

Operation number must appear on all claims.

Operation Number

A40-25108-1
Description

Update VCU Calibration
Time

0.3 hrs
Table 2 Labor Information

WARRANTY CLAIMS
Warranty claim expense is to be charged to Warranty. Claims are to be submitted in the

normal manner, making reference to Field Service Campaign 25108.

Section 7 of the Warranty Policy and Procedures Manual contains further information

related to the submission and processing of AFC / Recall claims.

As with all claim submissions, items acquired locally must be submitted in the “Other

Charges” tab. The cost of any bulk items (such as a bag of cable tie straps, roll of wire,

barrel of oil, or tube of silicone) should be prorated for the cost of the individual pieces /

amount used during each repair.

To make sure this important improvement is made in a timely manner, all claims for

25108 activity must be submitted by 01 January 2026 or within the normal warranty

period for the component repaired, if after 01 January 2028.
© 2026 IC Bus, LLC. All rights reserved. All marks are trademarks of their respective owners.
Page 4
© 2026 IC Bus, LLC. All rights reserved. All marks are trademarks of their respective owners.
Page 5

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Last update on 2026-03-26 / Affiliate links / Images from Amazon Product Advertising API

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