# Service bulletin ATI\&09142023901

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: 10242562
- Published by NHTSA: 2023\-09\-21
- Manufacturer's number: ATI\&09142023901
- Manufacturer's date: 2023\-09\-14
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## 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-10242562-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10242562-9999.pdf)

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

## Components

Electrical system, 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\&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.
- [ATI\&07282023903](/bulletins/10240328.md), 2023-08-03, Service bulletin: 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.
- [ONL6AE11302021](/bulletins/10203823.md), 2021-12-03, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:MODULATOR; EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:SPEED CONTROL; ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE:SIGNAGE/SIGNAL RECOGNITION; FORWARD COLLISION AVOIDANCE. Owner Notification Letter \- Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle \(Vehicle Identification Number XXXXXXXXXXXXXXXXX\). During production on your 2020 Civic Type\-R, the latest software version for the ACC/CMBS \(adaptive cruise control/collision mitigation braking system\), which is part of the VSA\-modulator control unit, was not installed in your vehicle. Vehicles without the latest software may be unable to maintain speed after setting the ACC.
- [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.
- [A20\-088](/bulletins/10181843.md), 2020-10-29, Service bulletin: ELECTRICAL SYSTEM. Service Bulletin \- Activity paths logged in the Honda LogR smartphone app appear broken or incomplete. This may happen more often at lower elevations.
- [ONL6AE07142020](/bulletins/10177398.md), 2020-07-21, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. Owner Notification Letter \- During production, the latest software version for the ACC/CMBS \(adaptive cruise control/collision mitigation braking system\), which is part of the VSA\-modulator control unit, was not installed in your vehicle. Vehicles without the latest software may be unable to maintain speed after setting the ACC.

JSON: [/v1/bulletins/10242562](/v1/bulletins/10242562)

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