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Service bulletin SB-49-5

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 id10046720
Published by NHTSA2012-10-18
Manufacturer's numberSB-49-5
Manufacturer's date2012-09-01
NHTSA componentFUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

NHTSA's summary

THOMAS BUILT: WHEN DIESEL EXHAUST FLUID (DEF) SYSTEM SITS FOR EXTENDED LENGTH OF TIME, THE TANK MAY CRYSTALLIZE AROUND FLOAT ON DEF LEVEL SENDING UNIT TUBE AND NEEDS CLEANING OR IT CAN CAUSE FLOAT TO STICK. MODEL SAF-T-LINER C2. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system, Fuel tank

Vehicles listed
THOMAS BUILT SAF-T-LINER C22010 to 2011
THOMAS BUILT BUSES SAF-T-LINER C22010 to 2013

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