2003 Triumph Bonneville problems, complaints & recalls
Most-reported problem areas: Wheels (3) · Wheels:rim (1)
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (97)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-09-22 · COM2_35786 · Service Bulletin/Repair Instructions
dealer notice announcing the availability of daignostic software and dealers should begin using it immediately.
Electrical System 2026-07-14 · COM1-35109 · Service Bulletin/Repair Instructions
dealer notice announcing the availability of triumph diagnostic tool 2026-07 and dealers should begin using it immediately.
Electrical System 2026-06-23 · COM2 - 34886 · Service Bulletin/Repair Instructions
dealer notice announcing the availability of triumph diagnostic tool 2026-06.1 and dealers should begin using it immediately.
Electrical System 2026-05-19 · COM6 - 34491 · Service Bulletin/Repair Instructions
dealer notice announcing the availability of triumph diagnostic tool version 2026-06 and dealers should begin using it immediately.
Unknown Or Other 2026-05-19 · COM5 - 34490 · Service Bulletin/Repair Instructions
dealer notice announcing the availability of technical bulletin 264.
Unknown Or Other 2026-05-18 · TB264 · Service Bulletin/Repair Instructions
technical bulletin 264 provides instructions that relates to: triumph diagnostic tool - new motorcycle connection and diagnostics workflow, triumph diagnostic tool - end of support for microsoft windows 10.
Showing the 6 most recent of 97 bulletins. Search all of them free at nhtsa.gov.
What owners report
2008-07-13 · Wheels · 6,400 mi“i was riding my triumph bonneville motorcycle and when we stopped to fuel up my riding buddy noticed that i had a broken spoke. luckily it was noticed before i had a punctured tube and could have incurred a serious accident. *tr…”
2007-10-01 · Wheels:rim · 9,000 mi“outside spoke (rear wheel, brake side) on a 2003 triumph bonneville broke while riding on highway. this resulted in loss of air and tire went flat. awaiting replacement spoke at this time from local triumph dealer. upon installation wheel will need to be retried and new inner tube and rim strip installed. *jb…”
2006-06-12 · Wheels · 13,805 mi“left outer rear wheel spoke failure on 2003 triumph bonneville motorcycle. *nm…”
2006-05-02 · Wheels · 13,000 mi“i had a spoke break on my 2003 bonneville t100. the spoke broke on the left side of the rear wheel. i have approximately 13,200 miles on the motorcycle. *nm…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.