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Service bulletin 511173

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 id10176470
Published by NHTSA2020-07-01
Manufacturer's number511173
Manufacturer's date2020-06-02
NHTSA componentENGINE; ELECTRICAL SYSTEM

NHTSA's summary

As Per Cummins: Our records indicate there is a Product Improvement Software Calibration Campaign (C2191) for the Cummins B6.7 CM2350 Model Year 2017 to 2018 engine(s) that you own or have purchased. Please refer to the attached table for engines that may be affected.

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, Engine

Vehicles listed
GLAVAL BUS APOLLO2017 to 2018
GLAVAL BUS LEGACY2017 to 2018
STARTRANS PS22017 to 2018

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