# Service bulletin 24111

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: 11012840
- Published by NHTSA: 2025\-01\-14
- Manufacturer's number: 24111
- Manufacturer's date: 2024\-12\-09
- Campaign id or software version: 24111
- NHTSA component: ENGINE

## NHTSA's summary

REASON FOR REVISION: Added section and parts for heat exchangers with shutoff valve \(feature 48PPP\). Added image showing correct installation of parts for the overall cabin heater system. Revised steps and images throughout the document for consistency and clarity. DEFECT DESCRIPTION: Certain IC Bus® Electric CE Series buses may have incorrect coolant hose routing for the cabin heat which may cause coolant to leak from the cabin heat surge tank overflow hose.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012840-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012840-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2024 IC BUS EVSB

JSON: [/v1/bulletins/11012840](/v1/bulletins/11012840)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2024111&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11012840&vehicle=Service%20bulletin%2024111)