2003 Triumph Bonneville America 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 (93)
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 93 bulletins. Search all of them free at nhtsa.gov.
What owners report
2006-01-29 · Wheels · 7,000 mi“i have a 2003 triumph bonneville t100. the motorcycle was purchased in february 2004 and had approximately 7000 miles on it at the time of the problem. on a trip from pittsburgh pa to dumfries, va, spokes on the left side of the rear wheel failed. there was no accident as a result of the failure. upon finding the failed spokes, i contacted the …”
2005-10-16 · Wheels:rim · 6,700 mi“broken spoke on rear wheel. *jb…”
2005-10-06 · Wheels · 11,700 mi“triumph t100 bonneville, 2003 model. 18,838.5 km. (approx. 11,800 miles) rear wheel spoke failed just above the bend in the spoke as it leaves the hub flange on the left ,(brake) side. the break is clean with no dirt or shiny spots indicating an initial crack, it appears to have just snapped. there have been many reported incidents like this on the…”
2005-08-14 · Wheels · 9,000 mi“i have had two rear wheel spoke failures on my 2003 triumph bonneville t100 motorcycle, one in july 2005 at approximately. 9000 miles and one in august 2005 at approximately. 9300 miles. both were a left-outer spoke and both broke at the same spot, very near the hub. i have since read about approximately. fifty identical incidents, on a triumph use…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.