# Service bulletin 20502

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: 10177765
- Published by NHTSA: 2020\-08\-04
- Manufacturer's number: 20502
- Manufacturer's date: 2020\-07\-17
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Emissions Recall applies to truck models that were built with 2019 and 2020 International 6.6 diesel engines; to improve Selective Catalytic Reduction \(SCR\) Diesel Exhaust Fluid \(DEF\) dosing system, which addresses the potential variability of Oxides of Nitrogen \(NOx\) emissions during various engine conditions, such as engine warm up. In addition, this recall will correct the Diesel Particulate Filter \(DPF\) frequent regeneration On Board Diagnostic \(OBD\) monitor and small quantity adjustment \(SQA\) diagnostic monitor to proper functionality.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177765-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177765-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2019 to 2020 INTERNATIONAL CV

JSON: [/v1/bulletins/10177765](/v1/bulletins/10177765)

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