2023 Harley-Davidson Flhxst Problems
Owner-reported complaints filed with NHTSA, grouped by component
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What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2023 Harley-Davidson Flhxst, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical133.3%
- Engine133.3%
- Fuel system133.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .