RoadVitals

2025 Triumph Daytona 660

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
3
Latest Sep 25, 2026
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Aug 19, 2025
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 3 NHTSA owner-reported complaints for the 2025 Triumph Daytona 660, most frequently naming the engine category. 1 safety recall has been issued covering this model year; and 51 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Engine3100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
25V531000

ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

Aug 19, 2025
1,929 units potentially affected
The defect: Triumph Motorcycles America, Ltd. (Triumph) is recalling certain 2024-2025 Daytona 660 motorcycles. The engine may fail due to internal damage from a disruption of oil flow.
The risk: Engine failure increases the risk of a crash.
The remedy: Dealers will increase the engine oil capacity and install a redesigned dipstick, free of charge. Owner notification letters were mailed September 10, 2025. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 640.
Triumph Motorcycles America, Ltd.Manufacturer number SRAN 640View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Engine
Filed Sep 25, 2026

The engine experienced catastrophic failure while riding the motorcycle at highway speeds - loss of power, a clicking noise, and then the engine died completely. Rider had to pull to the side of the freeway and coast to a safe location, engine would not restart. Motorcycle was then towed to the dealership who has evaluated the motorcycle and damage and opened a goodwill claim with Triumph corporate as the vehicle warranty expired at 20,000 miles (just prior to this incident occurring). The owner received the first and only recall notice for the low oil/short dipstick issue for this motorcycle on June 17th, 2026 via email - this was received five (5) days after the motorcycle was towed to the dealership on June 12th, 2026, and approximately 2.5 weeks following the engine's catastrophic failure. Warning lights showed up when the engine failed, but not prior. The manufacturer is refusing to replace/repair the engine due to the warranty being expired, even though the issue is due to the recall. I have only serviced this motorcycle with the dealership from which it was purchased (an authorized servicer of my motorcycle brand) and have maintained all records relating to services thus far (pre-sale inspection, 600 mile break-in service record, and 10k service record). The motorcycle was already on the schedule to be serviced for the 20k service interval. (10k service intervals for the Daytona 660, per the manufacturers recommendations). I also have written correspondence with the dealership regarding this issue and their communication with Triumph corporate.

NHTSA ID
11767058
Incident
May 29, 2026
Engine
Filed Apr 27, 2026

The contact owns a 2025 Triumph Daytona 660. The contact received notification of NHTSA Campaign Number: 25V531000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted, but the vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

NHTSA ID
11733959
Incident
Aug 27, 2025
Engine
Filed Sep 16, 2025

The contact owns a 2025 Triumph Daytona 660. The contact stated that while driving 70 MPH, the vehicle experienced a loss of automotive power. There was no warning light illuminated. The contact pulled over, and the vehicle was towed to a local dealer where it was diagnosed, and the contact was informed that the failure could not be duplicated. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 25V531000 (ENGINE AND ENGINE COOLING); as a possible cause for the failure. The manufacturer was not notified of the failure. The approximate failure mileage was 4,163.

NHTSA ID
11687637
Incident
Sep 15, 2025
Mileage
4,163 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

COM2 - 35941

ELECTRICAL SYSTEM

Dealer notice advising to check for an immobiliser software update before replacing any TPMS components on keyed motorcycles experiencing TPMS concerns.

COM1 - 35940

ELECTRICAL SYSTEM

Dealer notice announcing the availability of Daignostic software and dealers should begin using it immediately.

COM2_35786

ELECTRICAL SYSTEM

Dealer notice announcing the availability of Daignostic software and dealers should begin using it immediately.

COM1-35109

ELECTRICAL SYSTEM

Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin using it immediately.

COM2 - 34886

ELECTRICAL SYSTEM

Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin using it immediately.

COM6 - 34491

ELECTRICAL SYSTEM

Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should begin using it immediately.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Triumph Daytona 660 by model year
YearComplaintsRecallsInvestigationsIssue Index
2026000—
2025Viewing310—
2024010—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.