WenmarOpen by Wenmar Pro

Service bulletin AER19020B

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10154181
Published by NHTSA2019-03-05
Manufacturer's numberAER19020B
Manufacturer's date2019-02-26
NHTSA componentENGINE

NHTSA's summary

Engineering Request for Investigation - American Honda Motor Co., Inc. (AHM) is investigating certain 2018-2019 Civic 2.0Ls with a customer complaint of an oil leak. 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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
HONDA CIVIC2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
A26-0092026-10-01. Service bulletin. Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored (DTCs are not required for repair).
A26-0082026-10-01. Service bulletin. Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored (DTCs are not required for repair).
AEBM082620269012026-08-27. Other. Dealer Message - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire, and/or DTCs P0300 through P0304 stored.
A26-0092026-08-27. Service bulletin. Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
A26-0082026-08-27. Service bulletin. Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
A25-0762025-08-08. Service bulletin. Service Bulletin - Oil leak at timing chain tensioner inspection cover due to possible insufficient sealant adhesion on inspection cover.
ATI&092520239072023-10-07. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accords, Civic Sis, and CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with DTCs P030X (Cylinder Misfire Detected) and/or P0172 (System Too Rich [Bank 1]) 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.
APaS090620239062023-09-13. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accords, Civic Sis, and CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with DTCs P030X (Cylinder Misfire Detected) and/or P0172 (System Too Rich [Bank 1]) 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.
A19-0332023-01-20. Service bulletin. Service Bulletin - Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 (random misfire detected), P0301 (No. 1 cylinder misfire detected), P0302 (No. 2 cylinder misfire detected), P0303 (No. 3 cylinder misfire detected), P0304 (No. 4 cylinder misfire detected), or P0172 (fuel system too rich) or a whirling noise coming from the engine compartment.
A19-0122023-01-20. Service bulletin. Service Bulletin - This bulletin is replaced by S/B 19-033, Warranty Extension: 2016-18 Civic 1.5L: Software Update with A/C Control Unit Replacement; DTC P0300, P0301, P0302, P0303, P0304, or P0172; Whirling Noise from Engine.