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Service bulletin DOC-1033968

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 id10158100
Published by NHTSA2019-04-08
Manufacturer's numberDOC-1033968
Manufacturer's date2018-11-08
NHTSA componentEXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS

NHTSA's summary

Service Solution: 1033968 TBB Warning Lights, One Side Flashes Faster than the Other

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

Lighting

Vehicles listed
THOMAS BUILT BUSES HDX2005 to 2012
THOMAS BUILT BUSES HDX2015
THOMAS BUILT BUSES MINOTOUR2000 to 2019
THOMAS BUILT BUSES SAF-T-LINER EFX2001 to 2019

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