I am the owner of a triumph 2008 rocket classic motorcycle VIN #[xxx]. I have contacted the manufacturer (triumph us) regarding an unusual amount of electrical failures within the warranty period. They have informed me that I have no grounds for complaint because the work is covered by the warranty. Problems to date are as follows 'ignition switch replacement 'full wiring harness and ignition switch # 2 replacement 'ecu intermittent connection 'intermittent instrument lights .problem not duplicated but continued. 'as the work order (#30900508) clearly states 'upon inspection technician found loose contact at harness side of ignition plug. Disassembled plug. Plug was cleaned & modified to ensure tighter fit to connector'. From what I can gather this connector is also the current problem. This problem caused the motor to cutout on the freeway at 70mph. A very dangerous situation I think you would agree? (so cal triumph) I am a member of 2 triumph forums and have found that the ignition switch failures on this particular model are frequent. I firmly believe that this motorcycle has a high degree of ignition switch failures which are potentially dangerous as the motor will cutout while riding. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
The worst 2008 Triumph Rocket III Classic problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Electrical1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical1
Recalls 1
Fuel system, gasoline: fuel injection system
- What is wrong
- On certain motorcycles, when the engine is returning to idle it may stall.
- Risk
- If the motorcycle stalls, the rider will have to restart the engine increasing the risk of a crash.
- Remedy
- Dealers will inspect and download new engine management software free of charge. The recall began on october 17, 2007. Owners may contact triumph at 678‑854‑2010.
Recall number 07V455000 · Recall details
See all 1 recalls for the 2008 Triumph Rocket III Classic
Defect investigations
Motorcycle stalling
Following our opening of this pe and subsequent discussions with triumph motorcycles ltd, the company decided to launch a safety-related recall of all rocket iii model motorcycles to address occurrences of sudden and un-foreseen tip-out stalling.this action was taken in lieu of responding to the federal safety agency's information request and involves the installation of an upgraded ecu incorporating revised engine management software. With triumph's safety-related recall, this pe is closed.
PE07030
Technical service bulletins for the 2008 Triumph Rocket III Classic 93
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Dealer notice announcing the availability of Daignostic software and dealers should begin using it...
- Dealer notice advising to check for an immobiliser software update before replacing any TPMS components on...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin...
- Dealer notice announcing the availability of Technical Bulletin 264.
- Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should...
- Technical Bulletin 264 provides instructions that relates to: Triumph Diagnostic Tool
- Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected...
- Dealer notice reminding of Motorcycle Cleaning, prohibited use of High-Pressure & Steam Cleaning equipment.
- Dealer notice announcing the availability of Diagnostic software 2026-04 and dealers should begin using it...
See all 93 bulletins for the 2008 Triumph Rocket III Classic
What 2008 Triumph Rocket III Classic owners say
Most recent owner complaints, unedited.
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Questions about the 2008 Triumph Rocket III Classic
Is the 2008 Triumph Rocket III Classic reliable?
Owners have filed 1 complaint about the 2008 Triumph Rocket III Classic, close to a typical Rocket III Classic model year.
What is the most common problem with the 2008 Triumph Rocket III Classic?
Electrical system, with 1 complaint.
How many recalls does the 2008 Triumph Rocket III Classic have?
1 recall, covering fuel system, gasoline.
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