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Service bulletin DOC-1033422

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 id10141868
Published by NHTSA2018-06-18
Manufacturer's numberDOC-1033422
Manufacturer's date2018-04-19
NHTSA componentFUEL SYSTEM, DIESEL; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

SS: 1033422 TBB Fault 6485 Fault 6485 Aftertreatment 1 Diesel Exhaust Fluid pump

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

Engine, Exhaust and emissions, Fuel system, Fuel pump

Vehicles listed
THOMAS BUILT BUSES C22010
THOMAS BUILT BUSES HDX2015

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