# Service bulletin KC\-537

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: 10188157
- Published by NHTSA: 2021\-03\-04
- Manufacturer's number: KC\-537
- Manufacturer's date: 2021\-02\-05
- NHTSA component: ENGINE AND ENGINE COOLING; EQUIPMENT

## NHTSA's summary

Diagnostic Trouble Codes \(DTC\) P20EE And P103C, Diagnostic Procedure; \- US17\+OBD16 and US17\+OBD2018 Emissions, Model Year 2018,2019

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188157-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188157-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Trouble codes named

P103C, P20EE

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/10188157](/v1/bulletins/10188157)

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