2015 Harley-Davidson FLHXS Street Glide Special — Maintenance & Ownership Guide
Routine Maintenance
Key maintenance tasks to keep your 2015 Harley-Davidson FLHXS Street Glide Special running reliably.
Brake Fluid Flush
The Reflex ABS system requires a full DOT 4 flush every 2 years to prevent moisture buildup from damaging the expensive ABS actuator.
Primary Chaincase Lubricant
Standard interval is 10,000 miles, but many owners change it every 5,000 miles to monitor for compensator wear debris.
Common Wear Items
Parts that wear over time on the 2015 Harley-Davidson FLHXS Street Glide Special and should be inspected regularly.
Tires
Heavy touring weight leads to 'cupping' on the front tire if pressure isn't maintained; Dunlop Multi-Tread (D407/D408) is the OEM standard.
Brake Pads
The linked braking system can lead to more rapid rear pad wear than riders expect, as the rear is automatically engaged with the front lever.
Popular Upgrades
The most popular aftermarket upgrades for the 2015 Harley-Davidson FLHXS Street Glide Special.
Stage 1 (Exhaust/Intake/Tuner)
Solves the lean-running condition and excessive engine heat common to the air-cooled 103 HO engine.
LED Lighting
Replacing the stock dual halogen bulb with a Daymaker LED significantly improves night visibility and safety.
Common Replacement Parts
Parts that commonly need replacing on the 2015 Harley-Davidson FLHXS Street Glide Special.
Saddlebag Fasteners
The stock 1/4-turn 'D-ring' pins are notorious for backing out, leading to lost saddlebags; most owners replace them with threaded bolt kits.
Battery
The Boom! Box system and security system create a parasitic draw; a high-CCA AGM battery is required to avoid 'lazy' starting.
Used Buying Inspection Checklist
What to look for when buying a used 2015 Harley-Davidson FLHXS Street Glide Special.
Clutch Master Cylinder Recall
Verify if NHTSA Recall 15V-216 was performed; failing units can cause the bike to lunge forward when started in gear.
Compensator Noise
Listen for a loud 'clunk' or 'bang' on startup or a 'sack of rocks' sound at idle, indicating the primary compensator is failing.
Infotainment Screen
Check for 'ghost touching' or dead spots on the 6.5 GT screen, which are common hardware failures in early Rushmore units.
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