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Service bulletin TSB-54-383-FTL

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 id11035531
Published by NHTSA2026-08-03
Manufacturer's numberTSB-54-383-FTL
Manufacturer's date2026-07-08
NHTSA componentENGINE

NHTSA's summary

Technical Service Bulletin for Fault Code 3363/1 DEF Temperature Error onGATS2.4 Systems

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

Vehicles listed
DETROIT DIESEL DD13
DETROIT DIESEL DD15

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