2008 Harley-Davidson Flhtcu Vehicle speed control Problems
- Complaints
- 4about this part
- Share
- 5%of 81 total for the year
- Median mileage
- 18,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the vehicle speed control of the 2008 Harley-Davidson Flhtcu, 5% of the 81 complaints for this model year. Where a mileage was given, the median is 18,500 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 in residential area bike began lurching and unable to maintain constant speed or RPM. Took to shop and they stated bike did not have any codes displaying. They lubricated all connections on throttle assembly and it temporary resolved issue. Now when I start the bike the throttle is unresponsive and bike is not able to be driven. Sometimes shutting down and restarting will temporarily resolve issue, however, bike is not safe to ride. I believe this is a safety issue and warrants a recall, however not recalls to date.”
NHTSA complaint #10649933, filed 2014-10, 6,500 miles“While riding at 60mph, the engine slowed the bike down to 25mph. I was lucky that I was not in traffic where a surprise slow down would have been very dangerous. I was able to ride the bike on the shoulder at 25mph, and let traffic go around me until there was an opportunity to safely get off of the road. I turned the engine off and waited 4 to 5 minutes. I then restarted the engine, the engine responded normally, and I rode home with no further problems. This has happened 2 more times over the last 3 months. …”
NHTSA complaint #10448488, filed 2012-02, 31,540 miles“Known defect in throttle position sensor wiring is not being corrected by local dealers when problem vehicles are presented for service. I believe a recall is warranted to ensure corrective actions already identified by the manufacturer are implemented before more operators/riders are placed in danger. This defect can be extremely hazardous as the motorcycle instantly reduces the engine power available without previous notice to the rider, which can result in the motorcycle failing to maintain adequate speed to maintain stability in a turn. …”
NHTSA complaint #11113923, filed 2018-07, 22,500 miles“The contact owns a 2008 harley davidson ultra classic. The contact stated that while driving approximately 65 MPH, the vehicle failed to accelerate. The vehicle was taken to the dealer for diagnosis. The technician stated that the wiring in the throttle would have to be replaced. The technician also advised the contact that the repair would not guarantee a remedy to the failure and if the failure recurred, the throttle would then have to be replaced. The VIN was not available. The manufacturer was not made aware of the failure. The vehicle was repaired. …”
NHTSA complaint #10511056, filed 2013-05, 14,500 milesRelated service bulletins
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Vehicle speed control: other model years
Other parts of the 2008 Harley-Davidson Flhtcu
36 complaintsFuel system
12 complaintsTransmission and drivetrain
9 complaintsElectrical system
6 complaintsEngine cooling
6 complaintsEngine
3 complaintsOther or unknown
3 complaintsSuspension
3 complaintsTires
3 complaintsWheels
3 complaintsSteering
2 complaintsBody and structure
2 complaints
← All problems reported for the 2008 Harley-Davidson Flhtcu
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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