Service bulletin APaS09062023906

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)
Type	Service bulletin
NHTSA id	10242218
Published by NHTSA	2023-09-13
Manufacturer's number	APaS09062023906
Manufacturer's date	2023-09-06
NHTSA component	ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

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.

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

Electrical system, Engine

Trouble codes named

P0172

Vehicles listed
HONDA ACCORD	2019, 2020
HONDA CIVIC SI	2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
HONDA CR-V	2019, 2020

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

Recalls for the same vehicles and component
23V844000	2023-12-13. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
20V798000	2020-12-17. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
2020611	2020-12-10. Electrical
20V771000	2020-12-10. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; VISIBILITY/WIPER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; EXTERIOR LIGHTING
19V383000	2019-05-21. AIR BAGS:FRONTAL:DRIVER CLOCKSPRING/SPIRAL CASSETTE; ELECTRICAL SYSTEM:HORN; AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE; STEERING: STEERING WHEEL/HANDLE BAR

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
AATS31549	2026-10-15. Service bulletin. Tech Line Summary Article - Customers may report that the center display unit changes screens on its own, registers unintended inputs, or operates erratically without user interaction. The condition may be more noticeable when vehicle interior temperatures are elevated.
A26-018	2026-10-01. 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).
A26-016	2026-10-01. 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).
A26-009	2026-10-01. 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).
A26-008	2026-10-01. 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).
A26-006	2026-10-01. 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).
A26-004	2026-10-01. 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).
A26-003	2026-10-01. 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).
AAHS09162026902	2026-09-21. Other. Dealer Message - On August 21st, 2026, American Honda issued a Product Update for certain 2018-2022 Accord and Accord Hybrid models that received the accessory Wireless CarPlay and Android Auto upgrade. Refer to Service Bulletin 26-068 for additional information regarding the Product Update.
AATS31549	2026-09-02. Other. Tech Line Summary - Customers may report that the center display unit changes screens on its own, registers unintended inputs, or operates erratically without user interaction. The condition may be more noticeable when vehicle interior temperatures are elevated.