Engine won’t start. Gearshift indicator shows a dash line, no fuel level shown, and engine modes are flashing on the dashboard. Once this occurs, the engine will not start. Turning the handlebars or tugging slightly on the wire harness may occasionally cause a connection to occur, and the fuel pump will run again with the dash returning to normal. No noticeable chafing is visible on the wiring harness, but there appears to be an intermittent connection in the harness.
The worst 2018 Triumph Thruxton problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes1
- Electrical1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes1
- Electrical1
- Fuel system1
Recalls 2
Structure: motorcycle: kickstand/center stand
- What is wrong
- Triumph Motorcycles America, LTD (Triumph) is recalling certain 2016-2018 Thruxton, 2016-2019 Thruxton R and 2020 Thruxton TFC motorcycles. The side stand spring may fracture, possibly allowing the side stand switch to activate and shut off the engine.
- Risk
- An engine stall increases the risk of a crash.
- Remedy
- Triumph will notify owners, and dealers will replace the side stand spring, free of charge. The recall began February 24, 2020. Owners may contact Triumph customer service at 1‑678‑854‑2010. Triumph's number for this recall is SRAN 570.
Recall number 20V015000 · Recall details
Engine and engine cooling: engine
- What is wrong
- Triumph Motorcycles America, LTD (Triumph) is recalling certain 2016-2018 Thruxton and Thruxton R motorcycles. The engine may stall if the throttle is open or closed quickly while the clutch lever is pulled in.
- Risk
- An engine stall can increase the risk of a crash.
- Remedy
- Triumph will notify owners, and dealers will update the engine management software, free of charge. Owners may contact Triumph customer service at 1‑678‑854‑2010. Triumph's number for this recall is 33.
Recall number 18V084000 · Recall details
See all 2 recalls for the 2018 Triumph Thruxton
Defect investigations
Extended Stopping Distance
The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE21017) on July 9, 2021 for model year (MY) 2016-2019 Triumph Thruxton and Speed Triple model motorcycles based on allegations of loss of front braking performance.Vehicle Owner Questionnaires (VOQ) indicated riders were experiencing a soft front brake lever that could result in an unexpected extended stopping distance. On July 28, 2021, ODI sent an Information Request letter to Triumph to learn more about the subject components and alleged defect.On September 24, 2021, Triumph submitted its response, which ODI analyzed.ODI learned that the majority of the VOQ incidents occurred two or more years after the motorcycle was manufactured. The manufacturer recommends changing the brake fluid every two years, regardless of mileage. As the manufacturer’s warranty lasts for two years from the date of sale, many dealers covered the complicated brake fluid replacement procedure under warranty. However, most of the motorcycles involved in these incidents were overdue to have their brake system serviced. Triumph conducted testing of the brake system to better quantify what riders were experiencing.Triumph found pulling the lever a second time immediately after an initial pull did result in less lever travel for the same force exerted on the lever.This reduction was two millimeters or less.Additional testing was conducted to ascertain the caliper force generated relative to various lever forces.Triumph found that the caliper force varied +/- 2% between the first and second pull of the front brake lever and any given applied force. Triumph claimed that the lack of proper maintenance was the cause of the soft brake lever.Triumph conducted additional testing to quantify this claim.The lever travel between the first and second pull increased 150% on an improperly maintained system versus a properly maintained system.However, the caliper force only decreased 2-3% on average with this increased lever travel, further indicating that the subject motorcycles are capable of fully stopping. ODI located and evaluated a subject motorcycle.Measurements were taken and confirmed there was a small decrease in lever travel between the first and second pull.ODI then conducted a series of hard braking events, which did not produce evidence that the difference in lever travel resulted in an extended stopping distance. ODI also considered Fatal Accident Reporting System (FARS) data.ODI identified six fatal events that involved a subject vehicle.The service history records were reviewed for each motorcycle, however,none of the records included any mention of braking problems and thus there is no indication that the alleged defect may have contributed to the fatal crashes. As of this time there are no VOQ or manufacturer claims reporting an injury, fatality, or crash arising from this issue.Based on the available information, including the absence of such events after nine years of service on the oldest motorcycles, ODI is closing this investigation.The closing of this investigation does not constitute a finding by the federal safety agency that no safety-related defect exists. The agency reserves the right to take further action if warranted by the circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
PE21017
Technical service bulletins for the 2018 Triumph Thruxton 105
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Dealer notice announcing the availability of Daignostic software and dealers should begin using it...
- Dealer notice advising to check for an immobiliser software update before replacing any TPMS components on...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin...
- Dealer notice announcing the availability of Technical Bulletin 264.
- Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should...
- Technical Bulletin 264 provides instructions that relates to: Triumph Diagnostic Tool
- Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected...
- Dealer notice announcing the availability of Diagnostic software 2026-05.1 and dealers should begin using...
- Dealer notice reminding of Motorcycle Cleaning, prohibited use of High-Pressure & Steam Cleaning equipment.
What 2018 Triumph Thruxton owners say
Most recent owner complaints, unedited.
The front brake lever must be pumped for full effectiveness prior to stopping. This is an ongoing issue, and occurs every time the brakes are applied.
Compare the 2018 Triumph Thruxton
Other model years
Questions about the 2018 Triumph Thruxton
Is the 2018 Triumph Thruxton reliable?
Owners have filed 2 complaints about the 2018 Triumph Thruxton, close to a typical Thruxton model year.
What is the most common problem with the 2018 Triumph Thruxton?
Brakes, with 1 complaint. Next is electrical (1).
How many recalls does the 2018 Triumph Thruxton have?
2 recalls, covering structure and engine and engine cooling.
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