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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 id10156343
Published by NHTSA2019-04-01
Manufacturer's numberDOC-1033968
Manufacturer's date2018-11-08
NHTSA componentEXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS; ELECTRICAL SYSTEM

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

Electrical system, 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.