2008 Harley-Davidson Flhx Electrical system Problems
- Complaints
- 6about this part
- Share
- 20%of 30 total for the year
- Median mileage
- 13,200miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the electrical system of the 2008 Harley-Davidson Flhx, 20% of the 30 complaints for this model year. Where a mileage was given, the median is 13,200 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.
“While riding my 2008 street glide I would lose all response on the throttle, while on the interstate I had to coast to the side of the road until the throttle randomly began to respond. While on this particular trip the bike repeated this at least 10-15 times. The bike is being trailer to the dealer for review. This is definately a safety issue while riding bike on a busy interstate.”
NHTSA complaint #10241175, filed 2008-09, 2,400 miles“I was driving down the high way and was in the fast lane when all of a sudden my throttle stopped responding and I lost power to the bike I then pulled the clutch in so I didn't come to sudden stop and get rear ended by the car behind me and I eased over the median and noticed my check engine light was on so I turned the bike off and waited a few minutes and started it back up and the light returned and I was able to get it back to the house with limited throttle and power and crossing the two lanes for traffic to get off the highway was the scariest thing I have had to do on a bike I wasn't…”
NHTSA complaint #10566569, filed 2014-02, 30,123 miles“I purchased a 2008 harley davidson street glide in august of 2008. All was great until june 2009 a few weeks after the 5000 mile service. I was riding the motorcycle to work and it simply shut off, after several minutes it restarted. I let it go thinking it was just a fluke, but after several weeks it happen again. Then, after several more weeks, again. I took it to a dealer 7/28/09 and they kept it a week and said they could find nothing wrong or duplicate the problem. I took the bike home and again, a few weeks later, it shut off on the way to work. It happened every few weeks. …”
NHTSA complaint #10285293, filed 2009-09, 5,500 miles“Throttle cuts off. Harley davidson since 2008 uses a cable less throttle. From reading the forums this seems to be a wide spread problem. The throttle will just stop working because of sensor failure. This happen to me today on a secondary road. Could no even imagine this happening on the highway at 65 MPH.”
NHTSA complaint #10437360, filed 2011-11, 13,200 miles“When riding the throttle goes into limp mode. On the freeway while changing lanes lost my throttle in front of cars going 75 MPH this is very dangerous!”
NHTSA complaint #11355181, filed 2020-09, 52,000 milesRelated service bulletins
- 11022969Aug 16, 2025SERVICE BULLETIN M1684: MARKET SPECIFIC BATTERY INTRODUCTION. PURPOSE: Initial Release. This bulletin informs dealers of the availability of new batteries for new Original…
- 11008736Sep 12, 2024SERVICE BULLETIN M1555 (REV E): BATTERY WARRANTY GUIDELINES. PURPOSE: Revision E. Added: Added procedures for the DCA-8000 E Battery Tester.* Updated: All sections. This bulletin…
- 11007544Aug 8, 2024SERVICE BULLETIN M1490 (V 24.8.8): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to…
- 11001293May 1, 2024SERVICE BULLETIN M1490 (V 24.6.4): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software…
Electrical system: other model years
Other parts of the 2008 Harley-Davidson Flhx
9 complaintsVehicle speed control
5 complaintsEngine
4 complaintsFuel system
4 complaintsTransmission and drivetrain
4 complaintsOther or unknown
2 complaintsWheels
2 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsSeats
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2008 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