2025 Harley-Davidson FXBB technical service bulletins

29 technical service bulletins and manufacturer communications cover the 2025 Harley-Davidson FXBB, including 2 warranty extensions.

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

Oct 31, 2025 Warranty extensionTIRE TREAD DEPTH GUIDE-UPDATE. PURPOSE: [Revision C. Updated: Tire Tread Depth Guide
Apr 18, 2025 Warranty extensionBattery warranty guidelines
Sep 17, 2026 Service bulletinDigital technician II - updates and release notes
Jul 25, 2026 Service bulletinDigital technician II - updates and release notes
Jun 11, 2026 Service bulletinDigital technician II - updates and release notes
Jun 5, 2026 Service campaignProduct program 0931 - 2025 softail oil dipstick
Apr 24, 2026 Service bulletinDigital technician II - updates and release notes
Apr 17, 2026 Service bulletinExhaust smoke, oil carry-over or milky oil (M8 models with transmission-mounted breather)
Mar 31, 2026 Service bulletinDigital technician II - updates and release notes
Mar 14, 2026 Service bulletinAftermarket exhaust header debris
Feb 25, 2026 Service bulletinDigital technician II - updates and release notes
Feb 25, 2026 Service bulletinDtii update procedure for software version (26.4.3)
Jan 28, 2026 Service bulletinDigital technician II - updates and release notes
Jan 28, 2026 Service bulletinDtii update procedure for software version (26.3.2)
Dec 18, 2025 Service bulletinDigital technician II - updates and release notes
Dec 18, 2025 Service bulletinDtii update procedure for software version (26.1.5)
Dec 10, 2025 Service bulletin2025 softail BCM update
Nov 22, 2025 Service bulletin2025 softail instrument module update
Nov 22, 2025 Service bulletin2025 softail BCM update
Nov 18, 2025 Service bulletinDigital technician II - updates and release notes
Oct 28, 2025 Service bulletinMidtronics GRX-3110 and DCA-8000 software
Oct 25, 2025 Service bulletinGenuine motor parts and accessories bulletin PAB1171 (rev b): software update for screamin eagle pro...
Sep 6, 2025 Service bulletinDigital technician II - updates and release notes
Aug 26, 2025 Service bulletinMidtronics GRX-3110 and DCA-8000 software
Aug 26, 2025 Service bulletinDigital technician II - updates and release notes
Aug 16, 2025 Service bulletinMarket specific battery introduction
Jul 17, 2025 Service bulletinBill of materials change for center-cooled warranty replacement engines
Apr 30, 2025 Service bulletin2025 softail initial care purpose
Apr 12, 2025 Service bulletinEarly production 2025 softail engine oil overfill

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