2020 Harley-Davidson FLHXS Street Glide Special — Common Issues & Known Problems
Known Issues & Owner Reports
These are the most commonly reported issues and concerns from owners, mechanics, and community forums for the 2020 Harley-Davidson FLHXS Street Glide Special.
Brake Light Software Error (Recall)
MediumA software bug could cause brake lights to stay illuminated without rider input.
Spark Plug Misfires
LowReports of defective factory spark plugs causing stuttering and rough idle at low miles.
Idle RPM Fluctuations
LowThe engine may hunt for idle or dip below 800 RPM, sometimes stalling at stops.
Primary to Transmission Oil Transfer
MediumOil migrating from the transmission to the primary chaincase.
Used Buying Inspection Checklist
What to look for when buying a used 2020 Harley-Davidson FLHXS Street Glide Special.
Sumping Check
Though 2020 received the updated oil pump, check for oil in the air cleaner or loss of power after long highway runs, which indicates residual sumping issues.
Neck Bearing 'Clunk'
Listen for a clunking sound when hitting bumps or applying front brakes, indicating the steering head needs adjustment.
Service History (1,000 Mile)
The first service is critical for the M8 to check for metal shavings in the magnetic drain plugs and ensure the initial break-in was successful.
RDRS Verification
Check the left-hand controls for the traction control button to verify if the bike was actually equipped with the $995 RDRS option.
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