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Service bulletin 1HDH4P5X01

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 id10153956
Published by NHTSA2019-03-04
Manufacturer's number1HDH4P5X01
Manufacturer's date2018-12-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

GENUINE MOTOR PARTS AND ACCESSORIES BULLETIN PAB1081: SCREAMIN' EAGLE UPDATES. Purpose: To inform dealers of Screamin' EagleĀ® Pro Street Tuner software changes related to Stage II for Trike models and Smart Tune PRO improvements. The Screamin? Eagle team has identified and corrected integration issues which have triggered false diagnostic codes (P0134 and P0154) following Smart Tune PRO installation on some models. Update dealership computers with the latest Pro Street Tuner software. The software is available for update now through the normal update process. California update for the exceptions will be communicated as Harley-Davidson receive this approval.

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

Engine

Trouble codes named

P0134, P0154

Vehicles listed
HARLEY-DAVIDSON FLHTCUTG2019
HARLEY-DAVIDSON TRIKE2017 to 2018

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