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Service bulletin SMT-SB-497

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10192894
Published by NHTSA2021-05-10
Manufacturer's numberSMT-SB-497
Manufacturer's date2013-05-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:SWITCH; ELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

We have identified that there is a possibility that the spring washers for the ignition switch screws may be missing on the above models. Dealers are requested to remove and refit the ignition switch screws with spring washers.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Ignition

Vehicles listed
TRIUMPH BONNEVILLE2011, 2012, 2013, 2014
TRIUMPH BONNEVILLE A32015 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH BONNEVILLE T1002011, 2012, 2013, 2014, 2015, 2016, 2017
TRIUMPH BONNEVILLE T100 BLACK2017 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH BONNEVILLE T100 BLACK A32016 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.