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Electrical systemPart report

2012 Harley-Davidson Flhtk Electrical system Problems

Complaints
4about this part
Share
21%of 19 total for the year
Median mileage
3,557miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2012 Harley-Davidson Flhtk, 21% of the 19 complaints for this model year. Where a mileage was given, the median is 3,557 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.

“This is concerning my 2012 harley davidson ultra classic limited. Without warning, most predominantly at highway speeds, the bike will go into limp mode. By that I mean, the throttle-by-wire will disconnect the engine's RPM's and decrease to 1200 RPM resulting in making the handlebar throttle control useless. (creating instant panic for fear of vehicles behind me running over me, especially on the interstate highway in heavy traffic) therefore I have no choice but to pull to the side of the road, shut the engine off, and go through to procedure of restarting the engine. …”

NHTSA complaint #10583274, filed 2014-04, 3,713 miles

“Purchased 4/30/2013 with 4075 miles. Forced to replace battery ($167.00) may 2015 due to dead cell preventing maintaining full charge, even on maintainer. Even after replacing battery, still would not maintain a full charge. While riding after battery-charger action, ABS, battery and check engine lights came one one after another. Continuing on to hd for repair, lights went off in reverse order as came on. They replace regulator. Health prevented me from riding often but she is stored in a weather proof shed with the battery maintainer running 24/7 to keep battery in good order. No such luck. …”

NHTSA complaint #10850170, filed 2016-03, 8,725 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2015220%
2014616%
2012421%
201115%
201027%

Other parts of the 2012 Harley-Davidson Flhtk

Brakes
11 complaintsSuspension
3 complaintsEngine
2 complaintsEquipment
2 complaintsElectronic stability control
1 complaintsFuel system
1 complaintsSteering
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaints

← All problems reported for the 2012 Harley-Davidson Flhtk

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