Service bulletin M1632

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.

NHTSA's summary

SERVICE BULLETIN M1632: ECM CALIBRATION UPDATE TO ADDRESS: CRANK, NO START. PURPOSE: Revision. Updated: Purpose for Service Bulletin, Vehicles Affected, Part Numbers and Credit Procedure. Removed 2024 Models (FLHX, FLTRX) as they are superseded by bulletin M1645. PURPOSE: To inform the dealer network that there is an Electronic Control Module (ECM) update available for 2023 CVO Street Glide (FLHXSE), CVO Road Glide (FLTRXSE) and 2024 CVO Street Glide (FLHXSE), CVO Road Glide (FLTRXSE) and CVO Road Glide ST (FLTRXSTSE). This update is to address a Crank, No Start concern that results in no Diagnostic Trouble Codes (DTCs) populating after the crank cycle is complete and requiring an Ignition cycle to correct. NOTE: 2024 Street Glide (FLHX) and Road Glide (FLTRX) models were included on this bulletin prior to May 2, 2024. Those models have been removed from this bulletin as the ECM software update for those models are now covered under Service Bulletin M1645 which will include the correction for this Crank, No Start condition as well as the information covered in M1645.

The document

• NHTSA's copy of the document (PDF)
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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, Engine

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

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