# Service bulletin M1661

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: 11010217
- Published by NHTSA: 2024\-11\-07
- Manufacturer's number: M1661
- Manufacturer's date: 2024\-10\-26
- NHTSA component: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM; UNKNOWN OR OTHER

## NHTSA's summary

SERVICE BULLETIN M1661: INSTRUMENT REFLASH TO ADDRESS WOW TEST CONCERN. PURPOSE: This bulletin informs the dealer network, that if the vehicle's speed displayed on the Instrument Module \(IM\) becomes stuck during the WOW, it will self\-correct once the vehicle comes to a stop. Then the speed will display correctly once the vehicle is put back into motion. A reflash is available in Digital Technician II \(DT II\), software version \(24.12.4\) or later for the affected Instrument modules that exhibit the concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010217-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010217-9999.pdf)

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

## Components

Electrical system, Throttle and cruise control

## Vehicles listed

- 2023 to 2024 HARLEY\-DAVIDSON FLFBS
- 2023 HARLEY\-DAVIDSON FLFBSANV
- 2023 to 2024 HARLEY\-DAVIDSON FXBBS
- 2023 to 2024 HARLEY\-DAVIDSON FXBR
- 2023 to 2024 HARLEY\-DAVIDSON FXFBS
- 2023 to 2024 HARLEY\-DAVIDSON FXLRST
- 2023 to 2024 HARLEY\-DAVIDSON FXST

JSON: [/v1/bulletins/11010217](/v1/bulletins/11010217)

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