Honda Civic Si Service Bulletins (2020)
5 manufacturer communications on file.
- September 25, 2026•Document ID: 11037695Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-009
- Date Added:
- October 1, 2026
- Manufacturer:
- HONDA
SummaryService 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).
Associated Products (9)Associated Documents - August 26, 2026•Document ID: 11036408Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-009
- Date Added:
- August 27, 2026
- Manufacturer:
- HONDA
SummaryService 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.
Associated Products (9)Associated Documents - September 25, 2023•Document ID: 10243737Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- ATI&09252023907
- Date Added:
- October 7, 2023
- Manufacturer:
- HONDA
SummaryDealer 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.
Associated Products (6)Associated Documents - September 6, 2023•Document ID: 10242218Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING
- Mfr Comm. #:
- APaS09062023906
- Date Added:
- September 13, 2023
- Manufacturer:
- HONDA
SummaryDealer 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.
Associated Products (6)Associated Documents - August 23, 2023•Document ID: 10241463Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- APaS08232023902
- Date Added:
- August 31, 2023
- Manufacturer:
- HONDA
SummaryDealer 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.
Associated Products (6)Associated Documents