# Service bulletin IK2300038

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: 11028358
- Published by NHTSA: 2026\-02\-05
- Manufacturer's number: IK2300038
- Manufacturer's date: 2026\-01\-20
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This document will walk the user through correcting the battery State of Charge \(SOC\) calibration. It has been found on some electric vehicles that the SOC calibration can become incorrect over time. Often times this is from the vehicle sitting a long period without use or charging the batteries. This will result in the SOC value on the cluster becoming inaccurate compared to the SOC value in the battery packs. This may also result in a low value for the vehicle range estimate on the EGC.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028358-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028358-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2022 to 2025 IC BUS EVSB
- 2021 to 2025 INTERNATIONAL EMV

JSON: [/v1/bulletins/11028358](/v1/bulletins/11028358)

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