# Service bulletin ATI\&01022024909

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: 10248678
- Published by NHTSA: 2024\-01\-09
- Manufacturer's number: ATI\&01022024909
- Manufacturer's date: 2024\-01\-02
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING

## NHTSA's summary

Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2018 Fits with customer complaint of Check Engine Light \(CEL\) on with DTC P0420 \(Catalyst System Efficiency Below Threshold\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10248678-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10248678-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Catalytic converter

## Trouble codes named

P0420

## Vehicles listed

- 2017 to 2018 HONDA FIT

## Other bulletins for the same vehicles and component

- [ATI\&02012024904](/bulletins/10250329.md), 2024-02-15, Service bulletin: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2018 Fits with customer complaint of Check Engine Light \(CEL\) on with DTC P0420 \(Catalyst System Efficiency Below Threshold\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.

JSON: [/v1/bulletins/10248678](/v1/bulletins/10248678)

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