Service bulletin IN-19-06

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	10055916
Published by NHTSA	2014-08-05
Manufacturer's number	IN-19-06
Manufacturer's date	2014-06-05
NHTSA component	ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

NHTSA's summary

HONDA: INFORMATION PROVIDED CONCERNING AN INVESTIGATION, ON CERTAIN VEHICLES, OF THE CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (DTC P0420) WITH MALFUNCTION INDICATOR LAMP (MIL) ON AND EITHER COLLECT SPECIFIC PARTS OR INSPECT PARTS, PRIOR TO REPAIR. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Engine, Exhaust and emissions, Catalytic converter, Instrument cluster

Trouble codes named

P0420

Vehicles listed
HONDA ACCORD	2010
HONDA CR-V	2010

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
DOR-M9J4S-07	2020-07-27. Service bulletin. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
DOR-M3J3F-07	2020-07-27. Service bulletin. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
Service Bulletin	2018-07-16. Service bulletin. Service bulletin - One or both A/F Sensor 1 (Air Fuel Ratio) caps may have fallen off and bored a hole through the affected WU-TWC (Warm Up Three Way Catalyst).
DLR MSG - RFP -	2018-06-18. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2010 CR-Vs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind.
DLR MSG - RFP -	2018-03-05. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2010 CR-Vs & Accord L4s with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind.
ENG REQ - AER140	2018-02-26. Service bulletin. Engineering request for investigation - American Honda (AHM) is investigating certain 2010 CR-Vs & Accord L4 with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.
DLR MSG - RFV, R	2018-02-26. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2010 CR-Vs & Accord L4 with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.
DLR MSG - RFV, R	2018-02-26. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2010 CR-Vs & Accord L4 with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.
DLR MSG - RFV, R	2018-02-21. Service bulletin. Dealer message - American Honda (AHM)is investigating certain 2010 CR-Vs & Accord L4 with a complaint of the Malfunction Indicator Lamp (MIL)on with the DTC P0420 (Catalyst System Efficiency Below Threshold)stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.
DLR MSG - RFV RF	2018-02-12. Service bulletin. Dealer message - American Honda (AHM)is investigating certain 2010 CR-Vs & Accord L4 with a complaint of the Malfunction Indicator Lamp (MIL)on with the DTC P0420 (Catalyst System Efficiency Below Threshold)stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.