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Service bulletins for the 2020 Triumph Bonneville Bobber

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

103 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SMTCOM0429JUL2012019-08-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Dealer notice advising how to prevent Instrument download failures and recover in the event a download has failed/interrupted.
SMT-COM03-27JUN22019-07-15. Service bulletin. POWER TRAIN. Dealer notice announcing the introduction of the revised gearchange shaft to all liquid-cooled Triumph Modern Classics models.
SMT-COM02-24JUN22019-07-15. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING. Dealer notice concluding the comprehensive test conducted to explore the warranty claims for headlamps with surface damage and corrective actions to prevent the issue.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.