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Service bulletin ATC2216

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 id10166215
Published by NHTSA2019-10-21
Manufacturer's numberATC2216
Manufacturer's date2019-09-27
NHTSA componentEQUIPMENT; ENGINE

NHTSA's summary

This Account Team Coverage is being issued to address potential System Out NOx sensor failures due to contamination and/or water impingement on certain B6.7 CM2350 B121B engines installed in Nova Bus applications. This field action authorizes certified repair locations to use the published service procedure to implement a drain hole in the system out NOx cup.

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, Equipment and accessories

Vehicles listed
CUMMINS B6.7

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