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Electrical systemPart report

2005 Triumph Rocket III Electrical system Problems

Complaints
6about this part
Share
30%of 20 total for the year
Median mileage
13,150miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the electrical system of the 2005 Triumph Rocket III, 30% of the 20 complaints for this model year. Where a mileage was given, the median is 13,150 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.

“At app. 8,500 miles going down the interstate motor just shut off. In the past year several times the instrument panel was not working. Switched bike off then back on started working. Took it to the local Triumph dealer today. Owner said it was the ignition switch was failing. Told me $400.00 plus for part. Didn't even ask what cost to put it on was. He showed me on the computer where Triumph has a modification of the new switch. Tells me there is plenty of them going out. …”

NHTSA complaint #10547699, filed 2013-10, 8,500 miles

“I was riding my motorcycle to work. The ignition failed, causing the engine to quit momentarily. This problem happened on the way home, then again in the parking lot on the way into work the next morning. That evening, the engine wouldn't start at all. It turned out to be a loose solder joint in the ignition module. Numerous owners of this model motorcycle have had similar problems and have discovered that it is due to excessive current flowing through the ignition switch. …”

NHTSA complaint #10414924, filed 2011-07, 30,050 miles

“The Rocket Iii has a known history of ignition failure and total electrical failure. The bike will simply turn off, often in the process of steering. The Triumph rat forums are full of stories highlighting this problem, and my bike alone has had the ignition switch replaced multiple times, but Triumph refuses to address the problem.”

NHTSA complaint #10863028, filed 2016-05, 30,000 miles

“High engine idle when coming to a stop or releasing the throttle. No engine braking available. High idle 1300-2000rpm when shifting . Problem developed after service bulletin 386 was performed by dealership. Returned to dealership , they found high idle but could not do anything to fix it. Ecu program problem I was told.”

NHTSA complaint #10205125, filed 2007-10, 16,000 miles

“The contact stated the motorcycle intermittently stalled while driving 20-25 MPH and while stopped at stop signs and lights. The motorcycle always restarted after the throttle was twisted for one minute. The dealership was unable to determine the cause of the stalling, but reset the computer twice. However, the intermittent stalling continues.”

NHTSA complaint #10157256, filed 2006-05, 10,300 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2005630%

Other parts of the 2005 Triumph Rocket III

Engine cooling
5 complaintsTransmission and drivetrain
5 complaintsBrakes
1 complaintsEngine
1 complaintsFuel system
1 complaintsBody and structure
1 complaintsTires
1 complaints

← All problems reported for the 2005 Triumph Rocket III

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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