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Service bulletins for the 2021 Triumph Bonneville T100

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.

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

By type

By component

Bulletins, newest first
SMTCOM032023-02-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 225.
Technical Bullet2023-01-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2022-11.1 and dealers should begin using it immediately.
227142023-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. Dealer notice announcing the availability of Diagnostic software 2022-11 and dealers should begin using it immediately.
226512023-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. Dealer notice announcing the availability of Diagnostic software 2022-10 and dealers should begin using it immediately.
SMT-COM012022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Dealer notice reminding of the new California Prop 65 regulation.
SMTTB2252022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Technical Bulletin 225 provides instructions that applies to Triumph Diagnostic Tool 2022-07 Update - ECM Status Report Feature - Beta A, Triumph Diagnostic Tool 2022-07 Update - Introduction of New Headlight ECM Hardware, Triumph Diagnostic Tool 2022-07 Update - Calibrations Removed From Service.
SMTCOM032022-09-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 225.
20733 SVC2022-05-31. Service bulletin. ELECTRICAL SYSTEM. Triumph has released diagnostic software version 2022-01
20680 SVC2022-05-31. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Triumph has released Technical Bulletin 222 including 8 subjects across a range of models.
SMT-COM01-13APRI2022-05-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2022-03.1 and dealers should begin using it immediately.
SMTCOM012022-04-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER. Dealer notice announcing the availability of Diagnostic software 2022-02 and dealers should begin using it immediately.
SMT-SB589-18MAY22021-06-14. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin 589 addresses the dealers to realign the clip on the fuel hose.
SMT-COM05-18MAY22021-06-14. Service bulletin. EQUIPMENT. Dealer notice announcing the availability of Service Bulletin 589.

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