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Service bulletins for the 2015 Triumph Thunderbird

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.

95 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
SMT-TN-1652021-05-10. Service bulletin. SUSPENSION. Mudgaurd extension, swinging arm/chain rubbing strip, final drive unit, maximum payload, twist grip position sensor, rear suspension drag link and drop link fixings, recommended crankcase sealnt, silencer heat sheild clamp fixings, front brake caliper bolts, oxygen sensor, seat latch fixings, belly pan fixings, and top toke washer.
SMT-TN-1642021-05-10. Service bulletin. SUSPENSION. Balancer cooling oil jets and crankcase spares kit, motorcycle handover (corrcect the fitting of the seat(s) or seat cowl), rider's seat fitment, handlebar clamp fixings, front suspension, and rear tyre wall pattern. A new crankcase assembly has been introduced for the above models from engine number 713402. The new assembly features modifications to the crankcase castings. As as result, both front and rear balancer shaft oil cooling jets have changed from M6 to M8. The new M8 oil cooling jets are not retrofittable and parts will continue to support the old condition M6 oil cooling jets for models already in service.
SMT-TN 159 1 Oct2017-11-03. Service bulletin. STEERING; EQUIPMENT:OTHER:LABELS; POWER TRAIN; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; SUSPENSION. Technical service bulletin 159 addressing 19 service instructions, some of which apply to all models. Instructions relate to piston and piston top ring, alternator rotor retaining bolt, rear brake hose guide, auxiliary lights, headlight spares, gear selector drum and neutral light switch, pulser ring fixings, side stand fixing, battery terminal cover, heated grip fixings, headstock bearing adjustment, front and rear diretion indicator fixings, swinging arm, throttle linkage cleaning, headlight label, clutch lifter piece, rear brake caliper bleed nipple and owner's handbook.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.