Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
M1475
Service Bulletin/Repair Instructions
SERVICE BULLETIN M1475: BOOM! BOX GTS - SOFTWARE UPDATE. PURPOSE: Revision. This bulletin provides notice of Boom!⢠Box GTS software release dates. For details on software notes see the owner's manual. This bulletin helps the dealer locate needed information to update and service Boom! Box Audio Infotainment systems. It also lists software revisions release dates. This information applies to all Touring, Touring CVO and Trike models equipped with a Boom! GTS Infotainment system.
M1510
Service Bulletin/Repair Instructions
SERVICE BULLETIN M1510: MILWAUKEE-EIGHT ENGINE - NEW OIL FILTER. REVISION. PURPOSE: To inform dealers of an improved oil filter for the Milwaukee-Eightî (MKE-8) engine. The new oil filter uses the same synthetic 5-micron media as the current filter, however, the new oil filter effective media surface area was increased by 25%. The increased media supports the higher oil flow rate of MKE-8 engines. Fitment, clearance and performance testing has only been performed on MKE-8 vehicles. All Twin Cam vehicles continue to use the current oil filter.
TT459
Service Bulletin/Repair Instructions
TECHNICAL TIP BULLETIN TT459: TIRE PRESSURE MONITORING SYSTEM (TPMS). Revision. PURPOSE: To inform dealers of the use and operations of vehicles equipped with TPMS (Tire Pressure Monitoring System). This system offers convenient monitoring of air pressure within each tire, and alerts the rider if tire pressures fall below specification. Both dealers and customers have raised questions regarding TPMS and how the system works. The intention of this bulletin is to answer some questions, and improve the general knowledge of: Functioning tire pressure sensors & Installation practices. All testing of the TPMS is done by using the TPMS diagnostics and diagnostic tips in the service manual or its supplement of that year and model vehicle or using DIGITAL TECHNICIAN II (PART NUMBER: HD-48650).
M1501
Service Bulletin/Repair Instructions
SERVICE BULLETIN M1501: 2018 â 2020 CVO SMOKED SATIN CHROME EXHAUST SHIELD FINISH. PURPOSE. REVISION. This bulletin informs dealers that the 2019 Touring CVO Smoked Satin Chrome exhaust shield finish changed from the 2018 finish during the model year change from a satin finish to a gloss finish. Harley-Davidson has created new part numbers for 2020 Smoked Satin exhaust shields. These new parts will also become the service parts for 2018 Smoked Satin Chrome exhaust shields and will exhibit the satin finish. The previous part numbers used in 2018 will continue to be produced with a glossy appearance and will be the service part for 2019 vehicles.