# Service bulletin T2085A

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.

- Type: Service bulletin
- NHTSA id: 10154969
- Published by NHTSA: 2019\-03\-25
- Manufacturer's number: T2085A
- Manufacturer's date: 2019\-02\-08
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING

## NHTSA's summary

This field action authorizes certified repair locations to upfit certain ISX15 CM2350 X101 engines rated at 455hp or higher with an improved Selective Catalytic Reduction \(SCR\) Catalyst. For the MY2013 engines, a calibration update will be required. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154969-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154969-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Software

## Vehicles listed

- CUMMINS ISX15

JSON: [/v1/bulletins/10154969](/v1/bulletins/10154969)

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