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Electrical systemPart report

2010 Harley-Davidson Flhx Electrical system Problems

Complaints
6about this part
Share
25%of 24 total for the year
Median mileage
17,251miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the electrical system of the 2010 Harley-Davidson Flhx, 25% of the 24 complaints for this model year. Where a mileage was given, the median is 17,251 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I was driving down the road going about 50 MPH and my throttle shut off and the engine went into limp mode (shut off one cylinder). I had to cross one lane to pull off the side of the road so I could restart my bike. Luckily there wasn't heavy traffic or it could have been really bad. I see that this is a trend in these bikes and harley needs to do something.”

NHTSA complaint #10629975, filed 2014-09, 10,550 miles

“There is a recurring problem with the compensator sprocket on starters in the big twin class that has been going on for quite some time & has not been addressed adequately from hd. The starter does not engage fully fairly often when the bike is started. My dealer as well as other dealers I have spoken to are aware of this, also many riders I have spoken with have had the same issue. Is anything pending where hd is considering a recall.”

NHTSA complaint #10654792, filed 2014-11, 10,000 miles

“The motorcycle goes into limp home mode and throws several codes which are all related to the throttle position sensor. This has happened to me several times at various speeds, RPM's, and throttle positions. I spoke with multiple mechanics and they advised me to first clean the connector at the throttle body. Cleaning the connections worked and I was able to clear the codes. After riding about 150 miles the same issue happened again and I ended up stranded in the middle of no where. This time I could not get the codes to go away. …”

NHTSA complaint #10626557, filed 2014-08, 29,500 miles

“I own a 2010 harley davidson road glide motorcycle. The bike has approximately 13000 miles on it. The problem is that the throttle quits working and has no response with no warning or symptoms. The first occasion was when I was passing a car and the engine RPM's went from 4000 to idle and there was no throttle response. I took the bike to the dealership for repair. They replaced a sensor in the throttle and a connector somewhere. I picked the bike up and the next day and rode about 200 miles and the problem recurred. There seems to be an electronic problem. …”

NHTSA complaint #10361329, filed 2010-10, 12,500 miles

“The throttle by wire connector hooks in behind the breather. Due to the hard turn of the connector going into the plug it bends the wires resulting in them breaking over time. This causes the motorcycle to lose throttle and go into limp mode causing me to very closely come to getting run over on the highway. It happened multiple times on the highway, turning. And on city streets.”

NHTSA complaint #11382745, filed 2020-12, 22,002 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2024220%
2018225%
2017240%
201216%
2010625%
20091034%
2008620%
200715%

Other parts of the 2010 Harley-Davidson Flhx

Brakes
12 complaintsEngine
4 complaintsVehicle speed control
4 complaintsFuel system
3 complaintsExterior lighting
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsWheels
1 complaints

← All problems reported for the 2010 Harley-Davidson Flhx

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology