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Service bulletin ISA-20-03

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10185171
Published by NHTSA2021-01-06
Manufacturer's numberISA-20-03
Manufacturer's date2020-12-10
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Indian Motorcycle has identified a potential calibration issue affecting some 111/116 c.i. motorcycles. When active, the P1530 fault causes the motorcycle to operate in a reduced power (limp) mode.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories

Trouble codes named

P1530

Vehicles listed
INDIAN CHIEF2014 to 2018
INDIAN CHIEF CLASSIC2014 to 2018
INDIAN CHIEF DARK HORSE2014 to 2018
INDIAN CHIEF VINTAGE2014 to 2018
INDIAN CHIEFTAIN2014 to 2018
INDIAN CHIEFTAIN CLASSIC2017 to 2018
INDIAN CHIEFTAIN DARK HORSE2017 to 2018
INDIAN CHIEFTAIN ELITE2017 to 2018
INDIAN CHIEFTAIN LIMITED2017 to 2018
INDIAN CHIEFTAN2014 to 2018
INDIAN CHIEFTAN DARK HORSE2014 to 2017
INDIAN ROADMASTER2014 to 2020
INDIAN ROADMASTER CLASSIC2018
INDIAN ROADMASTER ELITE2018 to 2019
INDIAN ROADMASTER ICON2018
INDIAN SPRINGFIELD2014 to 2020
INDIAN SPRINGFIELD DARK HORSE2017 to 2020
INDIAN VINTAGE2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.