2009 Harley-Davidson Flhx: Reliability Data

Source: NHTSA — 41 complaints
41
Total Complaints
23,569mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
1
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

16,000 25th Percentile
23,569 Median Mileage
40,066 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
10
VEHICLE SPEED CONTROL
6
SERVICE BRAKES
6
FUEL/PROPULSION SYSTEM
6
POWER TRAIN
3
ENGINE
2
WHEELS
2
STEERING
2
ENGINE AND ENGINE COOLING
1
ELECTRONIC STABILITY CONTROL (ESC)
1

Severity Assessment

1
Crashes
0
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"I WAS RIDING HOME FROM MARIETTA, GEORGIA ON INTERSTATE 575 AND HAD THE CRUISE CONTROL ENGAGED. SUDDENLY AND UNEXPECTEDLY, THE CRUISE CONTROL KICKED OFF AND I BEGAN TO DECELERATE. I WAS POSITIVE THAT I HAD NOT HIT THE CLUTCH OR EITHER BRAKE, ANY OF WHICH WOULD HAVE DISENGAGED THE CRUISE CONTROL. W..."
"I WAS RIDING HOME FROM MARIETTA, GEORGIA ON INTERSTATE 575 AND HAD THE CRUISE CONTROL ENGAGED. SUDDENLY AND UNEXPECTEDLY, THE CRUISE CONTROL KICKED OFF AND I BEGAN TO DECELERATE. I WAS POSITIVE THAT I HAD NOT HIT THE CLUTCH OR EITHER BRAKE, ANY OF WHICH WOULD HAVE DISENGAGED THE CRUISE CONTROL. W..."
"HARLEY DAVIDSON OPERATING DIAGNOSTIC CODES P1511 & P2135 HARLEY DAVIDSON SERVICE BULLETIN T T 418 LOST POWER AND MY BIKE WENT TO "LIMP HOME MODE" . TOP SPEED 30 MPH @ 1500 RPM FROM 55 MPH IN HEAVY TRAFFIC. VERY DANGEROUS !!! $320.00 TO FIX THIS DEFECT (JUST PARTSCOST) .. THERE SHOULD BE A RECAL..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28