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Service bulletin SB 3109

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 id10125012
Published by NHTSA2017-12-08
Manufacturer's numberSB 3109
Manufacturer's date2017-11-30
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Service Bulletin informs affected customers that model year 2017-2018 MCI model coaches may experience nuisance diagnostic trouble codes when starting the coach and that for model year 2017 coaches, to allow the MIL and Wingman system components to complete the self-test cycle (allow approximately 5 to 10 seconds for self-test cycle) between actuating the ignition power switch on the LH switch panel and for MY 2018 coaches, to all the MCI Drive Scene environment system components to complete the self-test cycle (allow 20 seconds for self-test cycle) between actuating the ignition power switch and the engine start switch on the LH switch panel

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

Vehicles listed
MCI J45002017 to 2018

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