Technical Service Bulletin M1691 — 2025 HARLEY-DAVIDSON FLTRXSTSE
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | M1691 |
| Manufacturer | |
| Vehicle | 2025 HARLEY-DAVIDSON FLTRXSTSE |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
SERVICE BULLETIN M1691: LINKED BRAKING FUNCTIONAL IMPROVEMENT. PURPOSE: Initial Release. This bulletin inform dealers that there is an Electro Hydraulic Control Unit (EHCU) update available. This update is to improve functionality of the Linked Braking System. Linked Braking allows for more balanced front and rear braking under a wide variety of brake applications. At speeds greater than 20 mph (32 km/h), the system dynamically adjusts the linking to achieve better braking balance, as compared to single input braking. The EHCU update improves Linked Braking with optimized front and rear brake proportioning while only the rear brake is being applied by the rider. This software update is to address a possible customer concern related to the smoothness of brake engagement during a linked braking event when only rear brake is applied. If a customer has concerns on this Linked Braking operation under these conditions, this improvement update can be applied. NOTE: For vehicles within factory warranty and concern is present, submit a warranty claim per Table 4.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2025 HARLEY-DAVIDSON FLTRXSTSE
M1691
SERVICE BRAKES