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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 id10182170
Published by NHTSA2020-11-05
Manufacturer's numberISA-20-03
Manufacturer's date2020-10-01
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

NHTSA's summary

Indian Motorcycle has identified a potential calibration issue affecting some 111/116 c.i. motorcycles. In some instances, the throttle twist grip and Electronic Throttle Control (ETC) position signals do not align with the predicted position within the ECM and set a P1530 fault (throttle plausibility). 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 CHIEF2020
INDIAN CHIEFTAIN2020
INDIAN ROADMASTER2020
INDIAN SPRINGFIELD2020
INDIAN VINTAGE2020

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