# Service bulletins for the 2021 Triumph Trident 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. 47 bulletins from NHTSA, as of 2026-10-19. - [COM3\-28197](/bulletins/11005458.md), 2024-08-02, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-10 and dealers should begin using it immediately. - [COM2\-28140](/bulletins/11005456.md), 2024-08-02, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-09.1 and dealers should begin using it immediately. - [COM1\-28064](/bulletins/11005455.md), 2024-08-02, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-09 and dealers should begin using it immediately. - [COM2\-27933](/bulletins/11003732.md), 2024-07-08, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-08.1 and dealers should begin using it immediately. - [COM1\-27828](/bulletins/11003730.md), 2024-07-08, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-08 and dealers should begin using it immediately. - [COM7\-TDT](/bulletins/11000794.md), 2024-06-04, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2024\-07 and dealers should begin using it immediately. - [SMT\-COM\-02](/bulletins/10253644.md), 2024-04-29, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2024\-04 and dealers should begin using it immediately. - [SMT\-COM\-01](/bulletins/10253642.md), 2024-04-29, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2024\-03 and dealers should begin using it immediately. - [Parts](/bulletins/10252943.md), 2024-04-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2024\-02 and dealers should begin using it immediately. - [SMTCOM01](/bulletins/10251740.md), 2024-03-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2024\-01 and dealers should begin using it immediately. - [SMT\-COM03](/bulletins/10249307.md), 2024-01-29, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2023\-08 and dealers should begin using it immediately. - [SMT\-COM01](/bulletins/10247139.md), 2023-12-11, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Diagnostic software 2023\-06 and dealers should begin using it immediately. - [SMT\-COM03](/bulletins/10239437.md), 2023-07-17, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice advising of a bug notification affecting calibration download function on certain systems. - [SMT\-COM01](/bulletins/10239435.md), 2023-07-17, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2023\-02.1 and dealers should begin using it immediately. - [SMT\-TB230](/bulletins/10236782.md), 2023-05-30, Service bulletin: ELECTRICAL SYSTEM. Technical Bulletin 230 provides instructions that applies to Electronic Systems Commissioning and Motorcycle Unlocking, Introduction of New Instrument Hardware, Triumph Diagnostic Tool 2023\-02 Update \- Calibrations Removed From Service and Encapsulated Fixings. - [SMT\-COM03](/bulletins/10236781.md), 2023-05-30, Service bulletin: ELECTRICAL SYSTEM. Dealer notice announcing the availability of Diagnostic software 2023\-02 and dealers should begin using it immediately. - [SMT\-COM02](/bulletins/10236780.md), 2023-05-30, Service bulletin: BACK OVER PREVENTION:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2023\-02 and dealers should begin using it immediately. - [SMT23891](/bulletins/10236313.md), 2023-05-15, Service bulletin: BACK OVER PREVENTION:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2023\-01.3 and dealers should begin using it immediately. - [SMT\-COM05](/bulletins/10231157.md), 2023-02-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2022\-08.1 and dealers should begin using it immediately. - [SMT\-COM04](/bulletins/10231156.md), 2023-02-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2022\-08 and dealers should begin using it immediately. - [SMT\-COM03](/bulletins/10231155.md), 2023-02-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 226. - [SMT\-COM01](/bulletins/10231153.md), 2023-02-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice reminding of the new California Prop 65 regulation. - [SMTCOM04](/bulletins/10231150.md), 2023-02-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Dealer notice announcing the availability of Diagnostic software 2022\-07 and dealers should begin using it immediately. - [SMTTB225](/bulletins/10231149.md), 2023-02-06, 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. - [SMTCOM03](/bulletins/10231148.md), 2023-02-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 225. More: [the next page](/v1/vehicles/2021_triumph_trident/bulletins?cursor=2023-02-06_10231148) (JSON) JSON: [/v1/vehicles/2021_triumph_trident/bulletins](/v1/vehicles/2021_triumph_trident/bulletins) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%202021%20Triumph%20Trident&page=https%3A%2F%2Fopen.wenmarpro.com%2Fmakes%2Ftriumph%2Ftrident%2F2021%2Fbulletins&vehicle=2021%20Triumph%20Trident)