# Service bulletin ISA\-22\-01

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: 10208644
- Published by NHTSA: 2022\-03\-04
- Manufacturer's number: ISA\-22\-01
- Manufacturer's date: 2022\-02\-17
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE

## NHTSA's summary

Indian Motorcycle has developed an updated ECM calibration for 2020 \- 2022 OEM, Stage 1 and Stage 2 North American Challenger motorcycles. The updated ECM calibration improves low speed operation, misfire detection, and idle performance. The updated ECM calibration will also increase the accuracy of the fuel level and expected range.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10208644-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10208644-9999.pdf)

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

## Components

Electrical system, Engine, Engine control module

## Vehicles listed

- 2020 to 2022 INDIAN CHALLENGER

JSON: [/v1/bulletins/10208644](/v1/bulletins/10208644)

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