Service bulletins for the 2010 Honda Accord
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.
111 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Catalytic converter are shown. Show all
| Service Bulletin | 2018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 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). |
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| DLR MSG - RFP - | 2018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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. |
| IN-19-06 | 2014-08-05. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 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 |
| IN-4-18-14 | 2014-07-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. HONDA: SOME VEHICLES MAY EXPERIENCE A MALFUNCTION WITH THE CATALYST SYSTEM. MALFUNCTION INDICATOR LAMP DTC P0420 MAY BE STORED. AMERICAN HONDA IS ATTEMPTING TO INSPECT THE VEHICLE BEFORE ANY REPAIRS HAVE MADE. *JS |
| IN-06-05-14 | 2014-07-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. AMERICAN HONDA: THERE MAY BE A MALFUNCTION INDICATOR LAMP ON WITH STORED DTC P0430 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD). AHM WOULD LIKE TO INSPECT/COLLECT PARTICULAR PARTS FROM THE VEHICLE BEFORE ANY ATTEMPTED REPAIRS HAVE BEEN MADE. *JS |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.