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Service bulletin SB 415B

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 id10119168
Published by NHTSA2017-10-15
Manufacturer's numberSB 415B
Manufacturer's date2014-09-17
NHTSA componentENGINE

NHTSA's summary

This Service Bulletin supersedes Service Bulletin 415 in its entirety and informs affected customers that the DD13 engine does not reach an operating temperature that is sufficient to perform a regeneration at low ambient temperatures on model year 2013-2014 MCI J4500 model coaches, and that MCI will remedy the affected coaches at no cost to the customers.

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
MCI J45002013 to 2014

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