# Service bulletin IK1500105

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11032496
- Published by NHTSA: 2026\-05\-08
- Manufacturer's number: IK1500105
- Manufacturer's date: 2026\-04\-23
- Campaign id or software version: IK1500105
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032496-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032496-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Vehicles listed

- 2020 to 2025 IC BUS CESB

JSON: [/v1/bulletins/11032496](/v1/bulletins/11032496)

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