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Electrical systemPart report

2008 Harley-Davidson Flhtcu Electrical system Problems

Complaints
6about this part
Share
7%of 81 total for the year
Median mileage
11,570miles
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 Flhtcu, 7% of the 81 complaints for this model year. Where a mileage was given, the median is 11,570 miles. 1 of these say a crash was involved, according to the filers.

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.

“My motorcycle when I started remained at high idle and would not reduce to normal. I was with a group of riders who were leaving so I took off as is and when coming to a stop the bike only slowed to 2000 RPM's almost causing me to run into car ahead of me. This problem occurs intermittently and motor company instruction was to use a idle reset procedure consisting of turning the ignition on-off 4 times. This worked for a few starts then would occur again. …”

NHTSA complaint #10275198, filed 2009-06, 11,570 miles

“I was riding my motorcycle with a group of bikes and had to make an emergency stop. When the brakes were applied, as directed in the owners manual, the ABS failed and caused the rear tire to lock and skid. The resulting skid caused a loss of control of the motorcycle and ultimately laying the bike down on the asphalt highway. This resulted in the rider and passenger sustaining injuries. The passenger received a Tramatic Brain Injury which a month and a half later she is still in recovery. The motorcycle has not yet been repaired or looked at by any Police or Technical personnel. …”

NHTSA complaint #11428227, filed 2021-08

“The contact owns a 2008 Harley-Davidson Flhtcu. While riding the motorcycle at 30 MPH, it suddenly lost power and would not accelerate. The motorcycle was towed to the dealer where it was diagnosed that the wire harness, connecting the throttle and carburetor, was faulty. The pins on the harness were replaced and the failure was corrected. The manufacturer was notified of the failure. The failure mileage was 30,000. Updated 11/07/16”

NHTSA complaint #10904281, filed 2016-09, 30,000 miles

“2008 harley davidson. Consumer states design flaw and serious safety issue with motorcycle the consumer stated the motorcycle had been at the repair shop since sept 9, 2010 because of a throttle problem created by the bike going into limp mode on its own while being driven or while at a stop. The consumer was informed the wiring harness needed to be replaced. However, the consumer stated there was no way to test the bike until the weather improves in order to determine if the problem has been rectified.”

NHTSA complaint #10391711, filed 2011-03

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2016117%
2014111%
2010516%
20091116%
200867%
200712%
19955100%

Other parts of the 2008 Harley-Davidson Flhtcu

Brakes
36 complaintsFuel system
12 complaintsTransmission and drivetrain
9 complaintsEngine cooling
6 complaintsVehicle speed control
4 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 28, 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