2006 Harley-Davidson Flhtcui

Routine

Owners filed 15 complaints about this vehicle with federal regulators, most often about the tires. No safety recall has been issued.

What fails
ComponentReportsCrashesFiresInjuries
Tires2
101
Service Brakes, Hydraulic › Foundation Components › Disc › Pads2
000
Service Brakes, Hydraulic2
000
Vehicle Speed Control1
000
Structure › Body1
000
Service Brakes, Hydraulic › Pedals and Linkages1
000
Service Brakes1
000
Fuel System, Gasoline › Fuel Injection System1
101
Engine and Engine Cooling › Exhaust System1
000
Engine and Engine Cooling › Engine1
000

What owners reported

Newest filings
Service Brakes
Filed May 11, 2026NC

Rear brakes. Can place rider in extreme danger it the event of a crash when losing rear brakes due to a hole in the brake line caused by friction against the clutch cable in factory routing of the line and cable. I called Harley Davidson customer service to see is I could get help to resolve my issue due the fact that this issue is the same basic problem as the current Recall Number: The campaign number is 26V234000, with Harley-Davidson's internal recall number XXX. Harley Davidson denied my request for help. While researching repair parts on the web, I discovered the current recall as noted above. I also read (on the web) that many others have experienced the same issue. There were no warnings other than a soft pedal. A Harley Davidson Dealer video attached also outlines this issue, as it is the exact problem I have. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Electrical System › Instrument Cluster/Panel
Filed Feb 21, 2019KY

2006 HARLEY DAVIDSON. CONSUMER WRITES IN REGARDS TO INCORRECT MILEAGE ON MOTORCYCLE. *LD *TR

Service Brakes, Hydraulic
Filed Sep 20, 20108,257 milesFL

MY 2006 HARLEY DAVIDSON ULTRA CLASSIC FRONT BRAKE LINE FAILED. THE MOTORCYCLE HAS 8,2XX MILES. I SQUEEZED THE FRONT BRAKE LEVER AS I WAS STARTING THE BIKE AND FELT THE LEVER FULLY DEPRESS. I SAW BRAKE FLUID SQUIRT ON THE BIKE AND ONTO MY LEG. MY MECHANIC SAYS HE HAS HEARD OF THIS PROBLEM FROM OTHER MECHANICS. I AM THE ORIGINAL OWNER. *TR

Engine and Engine Cooling
Filed Mar 4, 201042,000 milesFL

FAILURE HAS NOT OCCURED ON MY BIKE HOWEVER NUMEROUS REPORTS FROM OTHERS AND DEALER RECOMMENDATION TO HAVE CAM CHAIN TENSIONERS CHECKED BECAUSE AS I WAS TOLD, IT IS NOT A QUESTION OF WHETHER BUT WHEN THEY WILL FAIL. FAILURE RESULTS IN IMMEDIATE LOSS OF POWER WHICH UNDER HIGHWAY CONDITIONS, FOR EXAMPLE WOULD LEAD TO DECELERATION, AS IN PASSING OR MERGING ONTO A FREEWAY. CONSEQUENTLY, PROBABILITY IS HIGH THAT COLLISION WILL OCCUR RESULTING IN DEATH OR SEVERE INJURY TO THE RIDER. THUS IT APPEARS TO BE A SAFETY ISSUE BUT IT IS NOT BEING ADDRESSED AS SUCH AND UNLESS AN OWNER OF A TWIN CAM 88 BIKE IS AWARE OF THE POTENTIAL FOR DISASTER, THE DEALERS NOR THE HOME OFFICE HAVE NOTIFIED HARLEY OWNERS TO MY KNOWLEDGE. THIS HAS BEEN A KNOWN DIFFICULTY FOR SEVERAL YEARS AND IF YOU ARE FORTUNATE TO HAVE AVOIDED A CRASH AND GOTTEN YOUR BIKE TO A DEALER FOR UPGRADED TENSIONERS IT STILL REMAINS THAT WE OWNERS HAVE BEEN LEFT HANGING WITHOUT INFORMATION UNLESS WE CALL AND THEN ARE SADDLED WITH A HIGH COST TO REPAIR WHAT IS A MANUFACTURERS DEFECT KNOWN TO THE MANUFACTURER. AS FAILURE HAS NOT OCCURED I HAD TO SUBMIT NUMBERS IN REQUIRED FIELDS IN ORDER TO GET THE COMPLAINT STATED. I APPOLOGIZE FOR THE DISPARITY BUT WANT YOU TO BE INFORMED. I INTEND TO CONTACT THE COMPANY AND REQUEST SATISFACTION FOR MYSELF AND OTHER RIDER/OWNERS BEFORE DEATHS OCCUR. SOME MAY HAVE ALREADY BUT BEEN FILED AS UNKOWN CAUSE OR RIDER ERROR OR SOME OTHER FICTION. *TR

Structure › Body
Filed Jan 21, 201010,461 milesID

2006 HARLEY DAVIDSON FLHTCUI. BROKEN UPPER FAIRING MOUNTS. FAILURE OF THESE MOUNTS (BREAKING AT ONE OR BOTH ENDS ON BOTH LEFT AND RIGHT SIDE OF INNER FAIRING) RESULTS IN CATASTROPHIC VIBRATION CAUSING LOSS OF CONTROL. I HAVE JUST EXPERIENCED THIS PERSONALLY AND I CAN ATTEST THAT HUNDREDS OF OTHERS INVOLVING SEVERAL OTHER YEAR MODELS HAVE BEEN REPORTED IN ONLINE HARLEY DAVIDSON WEBSITES. HARLEY DAVIDSON CORPORATE ADMITS TO NO MANUFACTURING FAULT, YET IT HAS REDESIGNED THESE MOUNTS AND NOW EMPLOYS A MUCH HEAVIER VERSION FOR LATER YEARS. THIS FAIRING MOUNT FAILURE IS PRESENT ON ANY HARLEY DAVIDSON MODEL INCORPORATING A FAIRING. I DO NOT KNOW WHAT YEAR HD WENT TO THE STRONGER MOUNTS BUT HD HAS NEVER OFFERED REPLACEMENTS TO THOSE WITH A KNOWN PROBLEM. I BELIEVE I CAN FAIRLY SAY THAT ALL FAIRING EQUIPPED HD MODELS USING THE OLD-STYLE MOUNTS HAVE HAD FAIRING MOUNTS BREAK. *TR

Service Brakes, Hydraulic
Filed Aug 12, 200831,000 milesCA

BRAKE LINE WAS FOUND TO BE CHAFFED FROM RUBBING ON THE CLUTCH LINE WHICH IS BUNDLE TOGETHER. THIS RESULTED IN A APPROXIMATELY 1/8" HOLE IN THE BRAKE LINE. FOUND WHEN CHANGING THE BRAKES. *TR

Engine and Engine Cooling › Exhaust System
Filed Jul 15, 200829,000 milesFL

INNER CAM BEARING FAILED ON MY 2006 HARLEY DAVIDSON ULTRA CLASSIC. THE MOTOR HAD TO BE COMPLETELY REBUILT INCLUDING NEW BEARINGS, OIL PUMP, CAMSHAFTS. CAM COVER AND ALL GASKETS. *TR

Service Brakes, Hydraulic › Foundation Components › Disc › Pads
Filed Feb 28, 200828,140 milesWI

TL*THE CONTACT OWNS A 2006 HARLEY DAVIDSON FLHTCUI. THE CONTACT STATED THAT THE LINING OF THE BRAKE PAD FELL OFF AFTER IT RUSTED. WHILE DRIVING 4 MPH, THE FRONT BRAKE LEVER EXTENDED COMPLETELY DOWN AND THE CONTACT HAD TO USE THE REAR BRAKES TO STOP. THE CONTACT TOOK THE VEHICLE TO A REPAIR SHOP AND HAD THEM REPLACE THE SHOES IMMEDIATELY AFTER THE FAILURE. HARLEY DAVIDSON HAS NOT BEEN NOTIFIED. THE PURCHASE DATE AND ENGINE SIZE WERE UNKNOWN. THE CURRENT MILEAGE WAS 29,680 AND FAILURE MILEAGE WAS 28,140. UPDATED 03/18/08. *LJ THE CONSUMER STATED THE BRAKE PAD WAS FALLING APART. UPDATED 03/18/08 *TR

Tires
Filed Aug 9, 20078,017 milesTX

I AM WRITING ABOUT A BRAND NEW DUNLOP D402 MU85B16 SW TIRE I BOUGHT FOR MY 2006 (HARLEY DAVIDSON) FLHTCUI IN PREPARATION FOR A NEARLY 3700 MILE ROAD TRIP. THE TRIP WENT JUST FINE, FOR ABOUT THE FIRST 450 MILES. AT THAT POINT THE TIRE, WHICH HAD LESS THAN 500 MILES TOTAL USE, SELF- DESTRUCTIVE. THE TIRE TREAD SEPARATED FROM THE INNER CORE ( PHOTOGRAPHS CAN BE PROVIDED). THE RUBBER TREAD ?FLAPPING? AGAINST THE WIRING HARNESS UNDER THE REAR FENDER ENTIRELY SEVERED THE WIRING. BY SEVERING THE WIRING HARNESS, OF COURSE, THE TAIL LIGHTS, BRAKE LIGHTS AND INSTRUMENT PANEL (SPEEDOMETER, TACHOMETER AND ODOMETER) WERE DISABLED. THE DUNLOP TIRE REPRESENTATIVE WOULD NOT ACCEPT ANY RESPONSIBILITY SINCE WE DID NOT SHIP THE TIRE TO THEM TO DETERMINE IF THE FAILURE WAS DUE TO MATERIAL AND/OR WORKMANSHIP. I AM WOULD LIKE TO KNOW IF THERE IS ANY RECOURSE FOR BUYING A TIRE THAT SELF-DESTRUCTS. WE ARE FORTUNATE THAT THE TIRE DID NOT BLOW OUT WHEN THE TREAD SEPARATED. CONSIDERING THE TREAD SEPARATION OCCURRED ON AN INTERSTATE HIGHWAY, THE CONSEQUENCES OF A BLOWOUT COULD HAVE BEEN SEVERE INJURY OR DEATH TO EITHER MYSELF, MY WIFE (WHO WAS A PASSENGER), OR BOTH. *JB

Service Brakes, Hydraulic › Foundation Components › Disc › Pads
Filed Dec 8, 200612,000 milesCT

I WAS PREPARING TO STOP AT A TRAFFIC LIGHT ON MY 2006 HARLEY DAVIDSON FLHTCUI WHEN MY FRONT BRAKE LEVER LOST ALL FEELING AND MOVED TO THE HANDLE BAR. FURTHER INVESTIGATION REVEALED THE BRAKE MATERIAL HAD SEPARATED FROM THE BACKING PLATE. NOW, I HAVE HAD A SECOND BRAKE PAD, ON THE REAR BRAKE DO THE SAME WITH THE BRAKE MATERIAL SEPARATING FROM THE BACKING PLATE. NEITHER SET OF BRAKES WAS BELOW THE WEAR LIMIT. THIS TYPE OF INCIDENT COULD VERY EASILY RESULT IN A CATASTROPHIC DEATH OR INJURY. *JB

Fuel System, Gasoline › Fuel Injection SystemCrash1 injured
Filed Oct 16, 200635 milesTX

MOTOR STUMBLES, COUGHS, DIES FOR NO REASON. MOTORCYCLE DIES WHEN TURNING AND FALL OVER ON MY LEG CAUSING INJURY. HARLEY DAVIDSON DEALER SAYS CANT FIND PROBLEM. *NM

TiresCrash1 injured
Filed Sep 21, 2006OH

THE CONSUMER LOST CONTROL OF HIS 2006 HARLEY DAVIDSON ULTRA CLASSIC WHEN THE REAR TIRE WENT FLAT. THE VEHICLE BEGAN TO FISHTAIL AND CRASHED INTO A CONCRETE WALL. *TS THE VEHICLE'S LEFT HEADLIGHT, LEFT FRONT PEGS, SEAT, LEFT DRY BOX, LEFT SIDE AND HANDLE BAR WERE DAMAGED. *NM

Service Brakes, Hydraulic › Pedals and Linkages
Filed Aug 26, 200614,630 milesIL

REAR BRAKE FAILURE AT APPROXIMATELY 14, 630 MILES, DUE TO CORROSION OF BRAKE SHAFT PIVOT ARM. UNIT NO LONGER HAS GREASE FITTING. I CAN FIND NO SERVICE INTERVAL SPECIFICATION FOR THIS PART. REPAIRED UNDER WARRANTY BY HARLEY-DAVIDSON TECHNICIAN IN BLUE SPRINGS, MO. *JB

Vehicle Speed Control
Filed Jan 26, 20061,200 milesCA

MOTORCYCLE ELECTRONIC SPEEDOMETER AND TACHOMETER LOST POWER (NEEDLES TO ZERO). FOUND THAT BRAKE LIGHTS, TURN SIGNALS, AND EMERGENCY FLASHER LIGHTS WERE ALSO A NONFUNCTIONAL, LEAVING ME UNABLE TO RENDER ANY OF THE STANDARD WARNINGS OF STOPS, TURNS OR TROUBLE.*AK HD MECHANICS BELIEVE THAT THE FAILURE WAS THE SPEEDOMETER AND SAY THAT THE FAILURE IMPACTS THE LIGHTS AS THE TURN SIGNALS' AUTO SHUTOFF IS INTEGRATED WITH THE SPEEDOMETER. I THINK THAT THIS DESIGN IS FAULTY DO TO THE LACK OF REDUNDENCY OR SEPARATENESS IN THE CIRCUIT WHICH ALLOWS A SINGLE FAILURE TO WIPE OUT ALL SAFETY AND LEGALLY REQUIRED LIGHTS HD IS REPLACING SPEEDOMETER IN HOPES OF REMEDIATING ELECTRICAL FAILURES.

Engine and Engine Cooling › Engine
Filed Dec 14, 2005CA

2006 ULTRA CLASSIC HAS SMOKED SINCE DAY I BOUGHT IT! HAD ONLY 2 MILES ON IT WHEN I WAS GIVEN THE PDI BY SALESMAN. BIKE IS STILL SMOKING ON STARTUP WHEN COLD. SO FAR HARLEY'S ONLY ANSWER IS TO WRENCH MY ENGINE, WHICH IN ESSENCE MEANS I HAVE PURCHASED A USED BIKE FOR A NEW PRICE! *JB

15 of 15 complaints, reproduced as filed.

Across model years

Worst on record: 2003
YearComplaintsRecallsFiresDeathsAssessment
20071000Routine
2006 — this page15000Routine
20055000Routine
20044000Routine
200326101Fatalities reported
20028200Routine
20018200Routine
200013100Routine
199910200Routine
199810101Fatalities reported
19975100Routine
19962100Routine
19951100Routine
19940100Routine

Compare every Flhtcui year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Most recent recall on file: none. Source: NHTSA Office of Defects Investigation.