Model year

2015 Triumph Trophy SE A1

Motorcycle, built in England. Owner complaints on file from Jan 23, 2017 to Jul 8, 2021.

Recall campaigns covering this model year11,585 vehicles or units across those campaigns
Owner complaints2Close to the median 2015 motorcycle
Severity index0.02015 motorcycles average 12.7
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2015 Triumph Trophy SE A1 peaked in 2017, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.75120171201820192020202120222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

100% of complaints about the 2015 Triumph Trophy SE A1 name powertrain

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Powertrain
2
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

One recall campaign covers the 2015 Triumph Trophy SE A1

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2015 Triumph Trophy SE A1
CampaignFiledSubjectComponentVehiclesRemedy
20V-150Mar 17, 2020Ignition switch wiring may be damaged due to the improper routing of the front brake hose, possibly resulting in inoperable headlights or…Electrical system1,585Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2015 Triumph Trophy SE A1

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

2 complaints on file, page 1 of 1.

  1. Filed Jul 8, 2021Failure May 30, 2019SUN City, AZPower train

    WHEN DOWNSHIFTING FROM 3RD GEAR, THE TRANSMISSION FREQUENTLY BYPASSES 2ND GEAR AND GOES INTO NEUTRAL. THIS IS TRUE NEUTRAL, NOT A FALSE NEUTRAL, AS THE NEUTRAL LIGHT COMES ON IN THE INSTRUMENT PANEL. THIS SITUATION IS VERY DANGEROUS AND COULD LEAD TO LOSS OF CONTROL OF THE MOTORCYCLE. WHEN DOWNSHIFTING FROM 3RD GEAR, THE EXPECTATION IS THE MOTORCYCLE WILL BE IN 2ND GEAR WHEN THE CLUTCH IS RELEASED. WHEN THIS PROBLEM OCCURS, A LOSS OF CONTROL CAN OCCUR WHEN THE MOTORCYCLE DOES NOT SLOW AS EXPECTED, POTENTIALLY LEADING A RIDER TO OVERSHOOT A CORNER, INTERSECTION, ETC. THIS PROBLEM CAN OCCUR WHENEVER THE MOTORCYCLE IS IN MOTION AND ATTEMPTING TO DOWNSHIFT FROM 3RD GEAR TO 2ND GEAR. THIS HAS HAPPENED NUMEROUS TIMES SINCE I BOUGHT THE BIKE IN 2019. WHEN I BROUGHT THE BIKE IN FOR THIS CONCERN, TWO DIFFERENT TIMES, THE DEALER COULDN'T FIND ANYTHING WRONG.

    NHTSA complaint 11423920
  2. Filed Jan 23, 2017Failure Jan 21, 20178,000 milesTroy, NYPower train

    WHEN DOWNSHIFTING FROM 3RD GEAR, THE TRANSMISSION FREQUENTLY BYPASSES 2ND GEAR AND GOES INTO NEUTRAL. THIS IS TRUE NEUTRAL, NOT A FALSE NEUTRAL, AS THE NEUTRAL LIGHT COMES ON IN THE INSTRUMENT PANEL. SOME ONLINE RESEARCH INDICATES THIS IS A COMMON PROBLEM WITH TRIUMPH TROPHY AND TIGER 1200CC MODELS AS EVIDENT BY THESE TWO USER GROUP THREADS: HTTP://WWW.TIGER-EXPLORER.COM/INDEX.PHP?TOPIC=8177.0 HTTP://WWW.TRIUMPH-TROPHY.COM/INDEX.PHP/TOPIC,4740.8.HTML THIS SITUATION IS VERY DANGEROUS AND COULD LEAD TO LOSS OF CONTROL OF THE MOTORCYCLE. WHEN DOWNSHIFTING FROM 3RD GEAR, THE EXPECTATION IS THE MOTORCYCLE WILL BE IN 2ND GEAR WHEN THE CLUTCH IS RELEASED. WHEN THIS PROBLEM OCCURS, A LOSS OF CONTROL CAN OCCUR WHEN THE MOTORCYCLE DOES NOT SLOW AS EXPECTED, POTENTIALLY LEADING A RIDER TO OVERSHOOT A CORNER, INTERSECTION, ETC. THIS PROBLEM CAN OCCUR WHENEVER THE MOTORCYCLE IS IN MOTION AND ATTEMPTING TO DOWNSHIFT FROM 3RD GEAR TO 2ND GEAR.

    NHTSA complaint 10947097
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

100 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • COM1-35109 Jul 14, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin using it immediately.
  • COM2 - 34886 Jun 23, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin using it immediately.
  • TB264 May 18, 2026 · 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.
  • COM6 - 34491 May 19, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should begin using it immediately.
  • COM5 - 34490 May 19, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Technical Bulletin 264.
  • COM4 - 34435 May 14, 2026 · Service Bulletin/Repair Instructions
    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.
  • COM01 - 34227 Apr 23, 2026 · Service Bulletin/Repair Instructions
    Dealer notice reminding of Motorcycle Cleaning, prohibited use of High-Pressure & Steam Cleaning equipment.
  • COM01 - 33784 Mar 17, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2026-04 and dealers should begin using it immediately.
  • COM1 - 33480 Feb 18, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2026-03 and dealers should begin using it immediately.
  • COM2 - 33233 Jan 28, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2026-02 and dealers should begin using it immediately.
  • COM1 - 32976 Jan 7, 2026 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2026-01 and dealers should begin using it immediately.
  • COM2 - 32716 Dec 4, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Technical Bulletin 255.
  • COM1 - 32684 Dec 2, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-13 and dealers should begin using it immediately.
  • COM3 - 32486 Nov 14, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-12.1 and dealers should begin using it immediately.
  • COM2 - 32455 Nov 12, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-12 and dealers should begin using it immediately.
  • TB255 Nov 11, 2025 · Service Bulletin/Repair Instructions
    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
  • COM1 - 31796 Sep 16, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-11 and dealers should begin using it immediately.
  • 31343 Jul 21, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-10 and dealers should begin using it immediately.
  • COM2 - 31089 Jun 24, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-09.1 and dealers should begin using it immediately.
  • COM1 - 31039 Jun 16, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-09 and dealers should begin using it immediately.
  • COM5 - 30840 May 23, 2025 · Service Bulletin/Repair Instructions
    Dealer notice advising the availability of Diagnostic software version 2025-08 and dealers should begin using it immediately.
  • COM3 - 30807 May 20, 2025 · Service Bulletin/Repair Instructions
    Dealer notice advising of Dealer TOL platform impacting the latest Diagnostic software download - logging off.
  • COM2 - 30768 May 14, 2025 · Service Bulletin/Repair Instructions
    Dealer notice advising the availability of Diagnostic software version 2025-07 and dealers should begin using it immediately.
  • TB250 May 6, 2025 · Service Bulletin/Repair Instructions
    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 Sw…
  • COM1 - 30678 May 6, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Technical Bulletin 250.
  • COM9 - 30576 Apr 24, 2025 · Service Bulletin/Repair Instructions
    Dealer notice advising the availability of Diagnostic software version 2025-06 and dealers should begin using it immediately.
  • COM7 - 30524 Apr 21, 2025 · Service Bulletin/Repair Instructions
    Dealer notice advising of some customer complaints relating to condensation in the instrument pack and headlamp.
  • COM6 - 30499 Apr 15, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software version 2025-05 and dealers should begin using it immediately.
  • COM6_30309 Mar 27, 2025 · Service Bulletin/Repair Instructions
    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.
  • TB249 Mar 21, 2025 · Service Bulletin/Repair Instructions
    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.
  • COM5_30212 Mar 19, 2025 · Service Bulletin/Repair Instructions
    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.
  • COM3_30112 Mar 10, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-04 and dealers should begin using it immediately.
  • COM3-29956 Feb 21, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-03 and that dealers should begin using it immediately.
  • COM1-29817 Feb 4, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-02 and that dealers should begin using it immediately.
  • COM1-29689 Jan 21, 2025 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2025-01 and that dealers should begin using it immediately.
  • COM3_29478 Dec 16, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-14 and that dealers should begin using it immediately.
  • COM3-29131 Nov 13, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-13 and dealers should begin using it immediately.
  • COM2-28473 Sep 11, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-12 and dealers should begin using it immediately.
  • COM1-28369 Aug 28, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-11 and that dealers should begin using it immediately.
  • COM3-28197 Jul 29, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-10 and dealers should begin using it immediately.
  • COM2-28140 Jul 18, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-09.1 and dealers should begin using it immediately.
  • COM1-28064 Jul 9, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-09 and dealers should begin using it immediately.
  • COM2-27933 Jun 25, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-08.1 and dealers should begin using it immediately.
  • COM1-27828 Jun 14, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-08 and dealers should begin using it immediately.
  • COM7-TDT May 21, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-07 and dealers should begin using it immediately.
  • SMT-COM-02 Mar 18, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-04 and dealers should begin using it immediately.
  • SMT-COM-01 Apr 3, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-03 and dealers should begin using it immediately.
  • Parts Feb 15, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-02 and dealers should begin using it immediately.
  • SMTCOM01 Jan 17, 2024 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2024-01 and dealers should begin using it immediately.
  • SMT-COM03 Dec 23, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-08 and dealers should begin using it immediately.
  • SMT-COM01 Dec 10, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-06 and dealers should begin using it immediately.
  • SMT-COM03 May 22, 2023 · Service Bulletin/Repair Instructions
    Dealer notice advising of a bug notification affecting calibration download function on certain systems.
  • SMT-COM01 Mar 5, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-02.1 and dealers should begin using it immediately.
  • SMT-TB230 Jun 4, 2023 · Service Bulletin/Repair Instructions
    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 Fixi…
  • SMT-COM03 Jun 4, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-02 and dealers should begin using it immediately.
  • SMT-COM02 Mar 4, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-02 and dealers should begin using it immediately.
  • SMT23891 Mar 20, 2023 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2023-01.3 and dealers should begin using it immediately.
  • SMT-COM05 Jul 22, 2022 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2022-08.1 and dealers should begin using it immediately.
  • SMT-COM04 Jul 20, 2022 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2022-08 and dealers should begin using it immediately.
  • SMTCOM04 Jun 21, 2022 · Service Bulletin/Repair Instructions
    Dealer notice announcing the availability of Diagnostic software 2022-07 and dealers should begin using it immediately.
Source: NHTSA manufacturer communications files.