2024 Triumph Speed 400 Technical Service Bulletins

70 technical service bulletins (TSBs) are on record for the 2024 Triumph Speed 400. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11037983Sep 22, 2026Electrical system. Dealer notice announcing the availability of Daignostic software and dealers should begin using it immediately.
• 11035862Jul 14, 2026Electrical system. Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin using it immediately.
• 11034475Jun 23, 2026Electrical system. Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin using it immediately.
• 11033612May 19, 2026Electrical system. Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should begin using it immediately.
• 11033611May 19, 2026Other or unknown. Dealer notice announcing the availability of Technical Bulletin 264.
• 11033614May 18, 2026Other or unknown. 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.
• 11033609May 14, 2026Electrical system. Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected issues in SmartScan, on Tracker 400 & Thruxton 400 models.
• 11032303Apr 24, 2026Electrical system. Dealer notice announcing the availability of Diagnostic software 2026-05.1 and dealers should begin using it immediately.
• 11032301Apr 23, 2026Other or unknown. Dealer notice reminding of Motorcycle Cleaning, prohibited use of High-Pressure & Steam Cleaning equipment.
• 11030550Mar 17, 2026Electrical system. Dealer notice announcing the availability of Diagnostic software 2026-04 and dealers should begin using it immediately.
• 11029561Feb 18, 2026Electrical system. Dealer notice announcing the availability of Diagnostic software 2026-03 and dealers should begin using it immediately.
• 11028327Jan 28, 2026Electrical system. Dealer notice announcing the availability of Diagnostic software 2026-02 and dealers should begin using it immediately.
• 11028326Jan 7, 2026Electrical system. Dealer notice announcing the availability of Diagnostic software 2026-01 and dealers should begin using it immediately.
• 11026941Dec 9, 2025Transmission and drivetrain. Service Bulletin 638 advises dealers to measure and replace the camshaft drive chain tensioner.
• 11026940Dec 9, 2025Transmission and drivetrain. Dealer notice announcing the availability of Service Bulletin 638.
• 11026934Dec 4, 2025Electrical system. Dealer notice announcing the availability of Technical Bulletin 255.
• 11026933Dec 2, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-13 and dealers should begin using it immediately.
• 11026082Nov 14, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-12.1 and dealers should begin using it immediately.
• 11026081Nov 12, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-12 and dealers should begin using it immediately.
• 11026077Nov 11, 2025Other or unknown, Electrical system. Technical Bulletin 255 provides instructions that applies to: Triumph Diagnostic Tool - Addition of Pinpoint Test Links to Smart Scan DTC Screen & Triumph Diagnostic Tool - Removal of IUPR Uploader Application
• 11023928Sep 16, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-11 and dealers should begin using it immediately.
• 11021532Jul 21, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-10 and dealers should begin using it immediately.
• 11021531Jul 14, 2025Electrical system. Technical Bulletin 252 provides instructions that applies to: Triumph Diagnostic Tool - ABS Calibration Update and Smart Scan ABS Calibration Version Check Improvement, Triumph Diagnostic Tool - Replacement ABS Modulator Setup - Change to ABS Variant Code Configuration Process
• 11019741Jun 24, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-09.1 and dealers should begin using it immediately.
• 11019676Jun 16, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-09 and dealers should begin using it immediately.
• 11018790May 23, 2025Electrical system. Dealer notice advising the availability of Diagnostic software version 2025-08 and dealers should begin using it immediately.
• 11018781May 20, 2025Other or unknown. Dealer notice advising of Dealer TOL platform impacting the latest Diagnostic software download - logging off.
• 11018775May 14, 2025Electrical system. Dealer notice advising the availability of Diagnostic software version 2025-07 and dealers should begin using it immediately.
• 11018747May 6, 2025Electrical system. Technical Bulletin 250 provides instructions that applies to the Triumph Diagnostic Tool Update - Smart Scan VIN Query and VIN Data Page, Triumph Diagnostic Tool - Engine ECM Diagnostics - Write VIN Function, Electronic Control Modules (ECMs) Must Not Be Swapped Between Motorcycles.
• 11018745May 6, 2025Electrical system. Dealer notice announcing the availability of Technical Bulletin 250.
• 11017967Apr 24, 2025Electrical system. Dealer notice advising the availability of Diagnostic software version 2025-06 and dealers should begin using it immediately.
• 11017961Apr 21, 2025Other or unknown. Dealer notice advising of some customer complaints relating to condensation in the instrument pack and headlamp.
• 11017941Apr 15, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software version 2025-05 and dealers should begin using it immediately.
• 11017909Apr 4, 2025Other or unknown. Dealer notice advising of the Chain Servicing Tool that will be auto-issued on 09th April 2025.
• 11016143Mar 27, 2025Electrical system. Dealer notice advising that the new Autoscan feature within the SmartScan function has now been enabled with the release of TDT 2025-04.1 and that instructions are detailed in Technical Bulletin 249.
• 11016139Mar 21, 2025Electrical system. Technical Bulletin 249 provides instructions that applies to the Triumph Diagnostic Tool - New Smart Scan Download Feature - Calibration Option Selection and the Triumph Diagnostic Tool - New Smart Scan Feature - Autoscan.
• 11016137Mar 19, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-04.1 and that dealers should begin using it immediately. This version includes a fix for the hardware part number-based calibration download issue.
• 11016132Mar 10, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-04 and dealers should begin using it immediately.
• 11015225Feb 28, 2025Electrical system. Dealer notice advising that the latest software release has reintroduced an issue affecting key paiing
• 11015035Feb 21, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-03 and that dealers should begin using it immediately.
• 11015019Feb 4, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-02 and that dealers should begin using it immediately.
• 11013842Jan 21, 2025Electrical system. Dealer notice announcing the availability of Diagnostic software 2025-01 and that dealers should begin using it immediately.
• 11013841Jan 16, 2025Fuel system. Technical update advising dealers on investigation findings of the fuel cap seal that is leaving a residue.
• 11011970Dec 16, 2024Electrical system. Dealer notice announcing the availability of Diagnostic software 2024-14 and that dealers should begin using it immediately.
• 10251739Dec 1, 2024Electrical system. Technical Bulletin 236 provides instructions that applies to Triumph Diagnostic Tool - Autoscan feature that doesn't currently support the given models.
• 10251738Dec 1, 2024Engine cooling. Technical Bulletin 235 provides instructions that applies to Calibration Downloading, Replacement Engine ECM Setup, Replacement ABS Modulator Setup, Replacement Instrument Setup, Replacement Immobiliser and Lock Set Setup.
• 11011154Nov 20, 2024Electrical system. Dealer notice providing an update of a temporary fix to allow pairing replacement keys.
• 11011151Nov 14, 2024Electrical system. Dealer notice advising of an issue affecting the key pairing functionality of TDT.
• 11011144Nov 13, 2024Electrical system. Dealer notice announcing the availability of Diagnostic software 2024-13 and dealers should begin using it immediately.
• 11011404Nov 4, 2024Other or unknown. Dealer notice advising of the introduction of the Triumph Beeline Moto II Special Edition navigation system.

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