Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 3 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Fuel/propulsion System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Vehicle Speed Control. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports0 fire reports1 injury reports
What owners actually said
3 reports
1,300 miles · Jul 14, 2019
Unknown Or Other
SPEEDOMETER FOGS OVER WITH CONDENSATION, WHEN LEFT IN THE SUN. IT IS IMPOSSIBLE TOREAD ANY OF THE DIGITAL FUNCTIONS WHEN THIS OCCURS. HARLEY REPLACED THE SPEEDO TWO DAYS AGO AND IT DID IT AGAIN. APPARENTLY HARLEY IS AWARE OF THE ISSUE AND HAS NOT CORRECTED IT. THEY SIMPLY REPLACE IT WITH ANOTHER ONE TH0AT THEY KNOW MAY ALSO BE …
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SPEEDOMETER FOGS OVER WITH CONDENSATION, WHEN LEFT IN THE SUN. IT IS IMPOSSIBLE TOREAD ANY OF THE DIGITAL FUNCTIONS WHEN THIS OCCURS. HARLEY REPLACED THE SPEEDO TWO DAYS AGO AND IT DID IT AGAIN. APPARENTLY HARLEY IS AWARE OF THE ISSUE AND HAS NOT CORRECTED IT. THEY SIMPLY REPLACE IT WITH ANOTHER ONE TH0AT THEY KNOW MAY ALSO BE DEFECTIVE. THIS IS A SEVERE SAFETY HAZARD,THAT HAS HAPPENED TO ANOTHER BIKE I OWNED.
NHTSA ODI #11231793
84 miles · Dec 13, 2018
Vehicle Speed ControlCrashInjury
TL* THE CONTACT OWNS A 2018 HARLEY-DAVIDSON FAT BOY (FLFB). WHILE DRIVING 20 MPH, THE VEHICLE ACCELERATED WHEN THE CONTACT SWITCHED GEARS TO DOWNSHIFT AND BRAKE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT SHATTERED HIS FEMUR AND INJURED HIS LEFT KNEE. MEDICAL ATTENTION WAS RECEIVED. A POLICE REPORT WAS NO…
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TL* THE CONTACT OWNS A 2018 HARLEY-DAVIDSON FAT BOY (FLFB). WHILE DRIVING 20 MPH, THE VEHICLE ACCELERATED WHEN THE CONTACT SWITCHED GEARS TO DOWNSHIFT AND BRAKE. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT SHATTERED HIS FEMUR AND INJURED HIS LEFT KNEE. MEDICAL ATTENTION WAS RECEIVED. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED. THE CONTACT DOES NOT KNOW IF THE VEHICLE WAS DIAGNOSED; HOWEVER, IT WAS REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 84.
NHTSA ODI #11161249
Mileage unknown · Aug 20, 2018
Fuel/propulsion System
BOUGHT BRAND NEW HARLEY DAVIDSON 2018 FLFB HAD A BAD FUEL LEAK COMING FROM VENT TUBE TOOK TO DEALER AND THEY DIDN'T KNOW HOW TO FUX. THEY CALLED HARLEY THEY TOLD THEM TO PUT NEW FUEL PUMP IN AND IT WORKED FOR TWO WEEKS PROBLEM IS NOW BACK AND THEY SAY THAT A FUEL LEAK IS NORMAL AND THEY DON'T HAVE A FIX FOR IT YET. AFRAID TO RI…
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BOUGHT BRAND NEW HARLEY DAVIDSON 2018 FLFB HAD A BAD FUEL LEAK COMING FROM VENT TUBE TOOK TO DEALER AND THEY DIDN'T KNOW HOW TO FUX. THEY CALLED HARLEY THEY TOLD THEM TO PUT NEW FUEL PUMP IN AND IT WORKED FOR TWO WEEKS PROBLEM IS NOW BACK AND THEY SAY THAT A FUEL LEAK IS NORMAL AND THEY DON'T HAVE A FIX FOR IT YET. AFRAID TO RIDE IT I'M AFFRAID THAT IT'S GONNA CATCH ON FIRE WILE I'M RIDING THEY ARE AWARE OF THIS PROBLEM BUT THEY ARE NOT DOING ANYTHING ABOUT IT
NHTSA ODI #11121141
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2018 HARLEY-DAVIDSON Flfb Problems, Complaints & Recalls | Skip That Year
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