# Service bulletin ATI\&07282023903

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: 10240328
- Published by NHTSA: 2023\-08\-03
- Manufacturer's number: ATI\&07282023903
- Manufacturer's date: 2023\-07\-28
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Dealer Message \-American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2021 Civic Type R with a customer complaint of the vehicle Malfunction Indicator Light \(MIL\) with DTC P0300 \(Random Misfire Detected\) and/or P0304 \(No. 4 Cylinder Misfire Detected\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240328-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240328-9999.pdf)

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

## Components

Engine

## Trouble codes named

P0300, P0304

## Vehicles listed

- 2017 to 2021 HONDA CIVIC TYPE R

## Other bulletins for the same vehicles and component

- [A25\-062](/bulletins/11024893.md), 2025-11-04, Service bulletin: ENGINE. Service Bulletin \- Water could enter the hood scoop and accumulate down inside the no. 4 spark plug hole. This can corrode the ignition coil, plug tube, and spark plug, leading to a misfire to the no. 4 cylinder. If a misfire is detected, DTC P0304 is stored.
- [A25\-089](/bulletins/11023271.md), 2025-09-23, Service bulletin: ENGINE. Service Bulletin \- Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
- [A25\-062](/bulletins/11022041.md), 2025-08-21, Service bulletin: ENGINE. Service Bulletin \- Water could enter the hood scoop and accumulate down inside the no. 4 spark plug hole. This can corrode the ignition coil, plug tube, and spark plug, leading to a misfire to the no. 4 cylinder. If a misfire is detected, DTC P0304 is stored.
- [ATI\&09142023901](/bulletins/10242562.md), 2023-09-21, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2021 Civic Type R with a customer complaint of the vehicle Malfunction Indicator Light \(MIL\) with DTC P0300 \(Random Misfire Detected\) and/or P0304 \(No. 4 Cylinder Misfire Detected\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- [ATI\&08292023904](/bulletins/10241868.md), 2023-09-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2021 Civic Type R with a customer complaint of the vehicle Malfunction Indicator Light \(MIL\) with DTC P0300 \(Random Misfire Detected\) and/or P0304 \(No. 4 Cylinder Misfire Detected\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- [ATI\&08142023901](/bulletins/10240765.md), 2023-08-18, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2021 Civic Type R with a customer complaint of the vehicle Malfunction Indicator Light \(MIL\) with DTC P0300 \(Random Misfire Detected\) and/or P0304 \(No. 4 Cylinder Misfire Detected\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- [A18\-044](/bulletins/10182986.md), 2020-11-24, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service Bulletin \- The MIL comes on with DTC P0035 \(turbocharger bypass control solenoid valve circuit high\) and the message REV Match System Problem / Emissions System Problem on the MID.
- [ONL6BV09102019](/bulletins/10165402.md), 2019-10-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Followup Notice \- Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle; refer to the address card for the affected VIN. The air bypass valve \(ABV\) harness in your 2017 Civic Type\-R may fray or become disconnected. If the ABV harness frays or disconnects, the MIL comes on with the message Rev Match System Problem. While you can still drive the vehicle under this condition, this would cause the vehicle to be noncompliant with applicable emission regulations. Honda strongly recommends having your vehicle inspected at your local Honda dealership and repaired as soon as possible. This will be done for FREE.

JSON: [/v1/bulletins/10240328](/v1/bulletins/10240328)

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