2015 Harley-Davidson FLHTKL Ultra Limited Low — 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 2015 Harley-Davidson FLHTKL Ultra Limited Low.
Water Pump Failure
MediumThe electric water pump on 2014-2016 models is prone to failure due to internal circuit board issues, leading to an engine light and 'limp mode'.
Hydraulic Clutch Malfunction
HighAir bubbles can form in the clutch master cylinder, preventing full disengagement. This was a major safety recall.
Saddlebag Separation
HighThe original 1/4-turn mounting pins could vibrate loose, causing the saddlebag to fall off while riding.
Used Buying Inspection Checklist
What to look for when buying a used 2015 Harley-Davidson FLHTKL Ultra Limited Low.
Coolant Pump Operation
Turn the ignition on and roll the throttle halfway for 3 seconds to trigger the pump and fans; listen for a grinding or non-functional pump.
Clutch Master Cylinder Recall
Verify if the 2015 clutch recall was performed; a failing cylinder can cause the bike to 'creep' in gear with the lever pulled.
Saddlebag Mounting Receptacles
Check if the mounting pins are the updated version or if they have been replaced with safety bolts.
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