2023 Harley-Davidson Flhxst

Owner complaints

What owners report most

1. Electrical system1
2. Engine1
3. Fuel/propulsion system1

Latest complaints

• Jun 2, 2025KS
  Electrical system · Engine · Fuel/propulsion system
  Throttle Body Failure. Availiable for inspection upon request. This faulty part, a Mikuni 55mm throttle body, which came OEM with my 2023 Harley-Davidson Milwaukee 8 Streetglide FLHX placed me and my Wife in harms way by shutting down the engine rpm while trying to make a left turn on a motorcyle…

  Throttle Body Failure. Availiable for inspection upon request. This faulty part, a Mikuni 55mm throttle body, which came OEM with my 2023 Harley-Davidson Milwaukee 8 Streetglide FLHX placed me and my Wife in harms way by shutting down the engine rpm while trying to make a left turn on a motorcyle which a rider uses to compensate for the lean needed with turning. Upon restart the engine would not start, leaving me stranded on the road and was towed after many hours on the road without anywhere to get off the road. The safety of others was jeopardized as they had to visually see a motorcycle and react by going around and had to move slightly into the opposite direction of traffic. Harley-Davidson refuses to change their policy to inspect only the faulty part on a bench or send the faulty part back to the original manufactuer for inspection without my vehicle in their possesion and they have a lack of knowledge and tools needed to perform the testing of the faulty throttle body. This fault is believed to be connected with others who have had intermittent problems associated with loss of throttle.

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11011630GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1162: PRO STREET TUNER-VIN AND CALIBRATION SEARCH. PURPOSE: To inform dealerships of a new Vehicle Identification Number (VIN) and Calibration search function for the Screamin' Eagle Pro Street Tuner (Bluetooth).
• 11010221WARRANTY BULLETIN W146 (REV B): TIRE TREAD DEPTH GUIDE-UPDATE. PURPOSE: [Revision B. Updated: Tire Tread Depth Guide. Add tire part numbers 43200063 and 43200038A.] To provide tire tread depth specifications for the dealership network to consult when filling warranty claims on used tires. Please see the Warranty Manual of your region for tire policy guidelines. Updated: Tire Tread Guide. Add tire part number 43100038B. Update tire tread depth, adjustment and reimbursement.
• 11010215SERVICE BULLETIN M1555 (REV F): BATTERY WARRANTY GUIDELINES. PURPOSE: [Revision F. Added: Added video link for the DCA-8000 Battery Tester. Added: Supplemental Procedure Video.] This bulletin informs the dealership network that Harley-Davidson has provided guidelines for battery warranty.
• 11008736SERVICE BULLETIN M1555 (REV E): BATTERY WARRANTY GUIDELINES. PURPOSE: Revision E. Added: Added procedures for the DCA-8000 E Battery Tester.* Updated: All sections. This bulletin informs the dealership network that Harley-Davidson has provided guidelines for battery warranty.
• 11007544SERVICE BULLETIN M1490 (V 24.8.8): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 24.8.8. Release Date: Week of August 5, 2024. New Features for Harley-Davidson vehicles: Advanced Module Replace for 2021 and later Revolution Max; 2023 and later CVO Touring; and 2024 Street Glide (FLHX), Road Glide (FLTRX). New Features for LiveWire vehicles: Updated calibrations for 2024 S2DM EV1/ EV6; 2024 S2MH EV1; and 2024 S2DM, S2MH. Changes: Added Hand Control Module (HCM) (Part No. 71500522A and 71500536A) for reflash support.
• 11005514GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1158: OIL FILTER PACKAGING AND CASE QUANTITY UPDATE. PURPOSE: To inform dealerships that Harley-Davidson has made updates to oil filters including new part numbers, packaging design, and bulk case quantity changes.
• 11001293SERVICE BULLETIN M1490 (V 24.6.4): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 24.6.4. Release Date: Week of May 1, 2024. New Features for LiveWire S2DM and S2MH, 2024 Revolution Max, and 2024 Touring.
• 10254137GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1149 (REV A): DIGITAL TECHNICIAN II UPDATE FOR VEHICLE HOLD CONTROL (VHC) UPGRADE KITS. PURPOSE: Revision. Parts availability update. * Updated: Refer to Purpose for Parts and Accessories Bulletin. To inform dealers that the Vehicle Hold Control (VHC) Upgrade Kit (Part No. 69203477) requires a Digital Technician II (DT II) update to enable the additional functionality from the kit. The DT II update (version 24.5.0) is now available to dealers. For any kits that were ordered before February 9th, 2024, instruct the customers to return for their update. The following part numbers are now available to order: 69203477-VHC Upgrade Kit, 50700116A-Long Haul Package (Chrome), 50700117A- Long Haul Package (Black). NOTE: Package part numbers 5070116A and 5070117A no longer include the Vehicle Hold Control kit.
• 10254115SERVICE BULLETIN M1612 (REV A): MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: Revision. Update: Notes for Table 3 and 4. * Updated: Part Numbers. This bulletin informs dealers that all: Twin Cam gear packs on CVO, Dyna, Police, Softail, Touring & Trike models and Milwaukee-Eight gear packs on CVO, Police, Softail, Touring & Trike models ordered after December 04, 2023 will not come with the shift drum, forks, shafts and related hardware. Models Affected: 2006-2017 Twin Cams: Dyna models 2007-2016 Twin Cams: CVO, Police, Touring and Trike models 2007-2017 Twin Cams: Softail models 2017-2024 Milwaukee-Eight: CVO, Police, Touring and Trike models 2018-2024 Milwaukee-Eight: Softail models
• 10251392GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1149: DIGITAL TECHNICIAN II UPDATE FOR VEHICLE HOLD CONTROL (VHC) UPGRADE KITS. PURPOSE: To inform dealers that the Vehicle Hold Control (VHC) Upgrade Kit (Part No. 69203477) both sold separately and found in the 2024 Long Haul Packages requires a Digital Technician II (DT II) update to enable the additional functionality from the kit, that is not yet released. The DT II update (version 24.5.0) will be available to dealers by the end of March 2024. For any kits that were ordered before February 9th, 2024, instruct the customers to return after the update is received. The following part numbers will be put on an ordering hold until issue is resolved: 69203477-VHC Upgrade Kit, 50700116-Long Haul Package (Chrome), 50700117- Long Haul Package (Black). NOTE: This only pertains to vehicle's equipped with Rider Safety Enhancements / Cornering Rider Safety Enhancements formerly known as Reflex Defensive Rider Systems (RDRS).
• 10248398SERVICE BULLETIN M1612: MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: This bulletin informs dealers that all: Twin Cam gear packs on CVO, Dyna, Police, Softail, Touring & Trike models and Milwaukee-Eight gear packs on CVO, Police, Softail, Touring & Trike models ordered after December 04, 2023 will not come with the shift drum, forks, shafts and related hardware. Note: Resubmission is a correction to Selected Products Section of Transaction ID 24MC44619, NHTSA ID 10248397. Models Affected by M1612 to include only: 2006-2017 Twin Cams: Dyna models 2007-2016 Twin Cams: CVO, Police, Touring and Trike models 2007-2017 Twin Cams: Softail models 2017-2024 Milwaukee-Eight: CVO, Police, Touring and Trike models 2018-2024 Milwaukee-Eight: Softail models
• 10248397SERVICE BULLETIN M1612: MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: This bulletin informs dealers that all: Twin Cam gear packs on CVO, Dyna, Police, Softail, Touring & Trike models and Milwaukee-Eight gear packs on CVO, Police, Softail, Touring & Trike models ordered after December 04, 2023 will not come with the shift drum, forks, shafts and related hardware.
• 10245706GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1144: 2021-2022 SCREAMIN' EAGLE STAGE I (CARB) EO APPROVALS. PURPOSE: To inform California dealers about the new California Air Resources Board (CARB) approvals for select 2021-2022 Harley-Davidson vehicles. Summary: Various Screamin' Eagle Air Cleaner Kits and Stage I calibrations have been approved for sale on select 2021 and 2022 Harley-Davidson models. Please see the table that indicates which part numbers should be ordered for what models.
• 10244933GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1143: SCREAMIN EAGLE CARB APPROVALS. PURPOSE: To inform California dealers about the new California Air Resources Board (CARB) approvals. Screamin' Eagle Quickshifter and Screamin' Eagle Extreme Flow 55mm Intake Manifold.
• 10244929SERVICE BULLETIN M1611: MILWAUKEE-EIGHT TRANSMISSION SHIFT DRUM UPDATE. PURPOSE: This bulletin informs dealers of a transmission shift drum running change to all variants of the Milwaukee-Eight powertrain. Starting on October 4, 2023 all Milwaukee-Eight CVO, Police, Softail, Touring and Trike models will be assembled using a common shift drum. The new shift drum (Part No. 33900265) is replacing the old shift drum (Part No. 33900172). The new shift drum was developed to include the "D" shaft on the end to interface with the Gear Position Sensor on 2023 CVO Street Glide (FLHXSE) and Road Glide (FLTRXSE). For all other Milwaukee-Eight models, the bearing door has been modified by adding a pocket to accept the "D" shaft of the new shift drum.
• 10242096SERVICE BULLETIN M1600: 2023 MILWAUKEE EIGHT OIL PAN FASTENER CHANGE. PURPOSE: This bulletin informs dealers that there is a running change for the oil pan fastener on all Milwaukee-Eight powered Softail and Touring models. As of Monday July 31, 2023, Powertrain Operations (PTO) in Menomonee Falls, WI is building all Milwaukee-Eight Softail and Touring powertrain models with new oil pan fasteners (Part No. 12600369). The old fasteners (Part No. 4741A) will still remain available for dealer purchase. The oil pans for the Softail and Touring models were updated to accept the new fastener geometry. Their Part Numbers have been superseded to (-A). Touring will be (Part No. 24400180A) and Softail will be (Part No. 24400208A). The new fastener will not fit with an old oil pan but the old hardware will still be available for dealer purchase. The old fastener CAN be used with a new (-A) oil pans. The fastener torque has not been changed.
• 10240480GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1133: 2023 SCREAMIN EAGLE CALIBRATION AVAILABILITY. PURPOSE: Revision I to L - Updated Document History. Updated Summary. Rev L thru J 7/27/2023 - Updated Summary: Screamin Eagle Stage kit calibration dates for various models. Rev H 5/26/2023 - Updated Summary: Updated: Jan 2, 2023 Softail calibration info. Added: July 2023 Softail calibration info for FXBR, FXLRS, FXLRST models. Rev I 5/26/2023 - Updated Summary: Updated: Trike Stage I and II July calibrations to "Now Available". To inform 49-State US, Canada, Mexico, and ANZ dealerships of the Screamin' Eagle calibration schedule as it relates to 2023 vehicles. Markets Affected: United States (excluding California), Canada, Mexico and New Zealand. Revision: Updated timing for 2023 DTII Screamin Eagle calibrations.
• 10238844SERVICE BULLETIN M1589 MILWAUKEE-EIGHT GASKET COLOR DIFFERENCES. Purpose: This bulletin informs dealers that starting on April 26, 2023 with Engine Identification Number (EIN) 1792099421, the Milwaukee-Eight powertrain was being built with neutral colored gaskets. For an unknown period of time, the neutral colored gasket is being used until the supply of black gaskets are reintroduced into production. The visible gaskets are under the lifter covers. Replacing the gaskets for cosmetic reasons is not warrantable.
• 10235272SERVICE BULLETIN M1586: SCREAMIN' EAGLE OIL PUMP INCORRECTLY MACHINED. PURPOSE: This bulletin informs dealers that Harley-Davidson has found a quality issue with the Screamin' Eagle Oil Pump and how to check inventory for this condition. Markets Affected: Worldwide
• 10233723GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1133: 2023 SCREAMIN EAGLE CALIBRATION AVAILABILITY. PURPOSE: Revision D & E. To inform 49-State US, Canada, Mexico, and ANZ dealerships of the Screamin' Eagle calibration schedule as it relates to 2023 vehicles. Markets Affected: United States (excluding California), Canada, Mexico and New Zealand. Revision: Updated timing for 2023 DTII Screamin Eagle calibrations. Updated Summary.
• 10231509GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1133: 2023 SCREAMIN EAGLE CALIBRATION AVAILABILITY. PURPOSE: Revision. Updated Trike stage kit information. To inform 49-State US, Canada, Mexico, and ANZ dealerships of the Screamin' Eagle calibration schedule as it relates to 2023 vehicles. Markets Affected: United States (excluding California), Canada, Mexico and New Zealand.
• 10228750SERVICE BULLETIN M1572: MODEL YEAR 2023 TECHNICAL SUPPORT DOCUMENTS. PURPOSE: This bulletin informs dealers that Harley-Davidson has identified a publication plan for technical support documents for model year 2023 motorcycles.

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