Honda Civic Si Service Bulletins
37 manufacturer communications on file.
- September 25, 2026•Document ID: 11037709Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-097
- 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 (3)Associated Documents - September 25, 2026•Document ID: 11037696Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-010
- 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 (8)Associated Documents - 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 31, 2026•Document ID: 11036657Over The AirELECTRICAL SYSTEM
- Mfr Comm. #:
- AA27867
- Date Added:
- September 2, 2026
- Manufacturer:
- HONDA
SummaryOver the Air System Updates - 2025 Civic Si: Software Update for Audio System software version 8A050-T20-AA31.
Associated Products (1)Associated Documents - August 28, 2026•Document ID: 11036649Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-097
- Date Added:
- September 2, 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 (3)Associated Documents - August 26, 2026•Document ID: 11036417Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-097
- 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 (3)Associated Documents - August 26, 2026•Document ID: 11036409Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A26-010
- 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 (8)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 - January 27, 2026•Document ID: 11028517Service Bulletin/Repair InstructionsSUSPENSION
- Mfr Comm. #:
- A07-078
- Date Added:
- February 6, 2026
- Manufacturer:
- HONDA
SummaryService Bulletin - There is a pop or clunk from the front suspension area when driving over bumps. This usually occurs after completing a tight (full lock) turn.
Associated Products (7)Associated Documents - January 16, 2026•Document ID: 11027811OtherSTRUCTURE:BODY
- Mfr Comm. #:
- ATI&01162026902
- Date Added:
- January 27, 2026
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2026 Civic Touring, Sport Touring & Si vehicles with a customer complaint of a rear shelf assembly vibration while playing music. Customer may also notice a rattle around the child seat anchor tether strap cover area on the rear shelf. 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 (10)Associated Documents - January 5, 2026•Document ID: 11027805OtherSTRUCTURE:BODY
- Mfr Comm. #:
- ATI&01052026904
- Date Added:
- January 27, 2026
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2026 Civic Touring, Sport Touring & Si vehicles with a customer complaint of a rear shelf assembly vibration while playing music. Customer may also notice a rattle around the child seat anchor tether strap cover area on the rear shelf. 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 (10)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 - August 3, 2017•Document ID: 10115757Service Bulletin/Repair InstructionsSTEERING; STEERING: STEERING WHEEL/HANDLE BAR
- Mfr Comm. #:
- A15060D
- Date Added:
- August 25, 2017
- Manufacturer:
- HONDA
SummaryService news article - To prevent damage during shipping, leather-wrapped steering wheels come with a protective plastic covering. The easiest way to remove it during PDI is to grab the covering with both hands near the top of the steering wheel and pull it toward you, like you see here. The covering comes right off.
Associated Products (66)2018 Honda Accord2018 Honda Civic2018 Honda Clarity2018 Honda CRF250L2018 Honda CR-V2018 Honda Fit2018 Honda HR-V2018 Honda Odyssey2018 Honda Pilot2018 Honda Ridgeline2017 Honda Accord2017 Honda CBR1000RR2017 Honda CBR600RR2017 Honda Civic2017 Honda Clarity2017 Honda CR-V2017 Honda Fit2017 Honda HR-V2017 Honda Odyssey2017 Honda Pilot+ 46 moreAssociated Documents - March 31, 2016•Document ID: 10204281Service Bulletin/Repair InstructionsEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- Mfr Comm. #:
- 032871
- Date Added:
- December 13, 2021
- Manufacturer:
- HONDA
SummaryHonda Job Aid - Tech Line Calling Guidelines Affected vehicles General Info.
Associated Products (13)Associated Documents - March 31, 2016•Document ID: 10204280Service Bulletin/Repair InstructionsEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- Mfr Comm. #:
- 03286
- Date Added:
- December 13, 2021
- Manufacturer:
- HONDA
SummaryHonda Job Aid - Tech Line Calling Guidelines Affected vehicles General Info.
Associated Products (13)Associated Documents - March 2, 2016•Document ID: 10204290Service Bulletin/Repair InstructionsVISIBILITY; EXTERIOR LIGHTING
- Mfr Comm. #:
- A16020D
- Date Added:
- December 13, 2021
- Manufacturer:
- HONDA
SummaryFog Light Lenses look melted or discoloredf?- All models with fog lights affected vehicles
Associated Products (13)Associated Documents - March 1, 2016•Document ID: 10204293Service Bulletin/Repair InstructionsEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- Mfr Comm. #:
- NSS300
- Date Added:
- December 13, 2021
- Manufacturer:
- HONDA
SummaryRecall Information update: Service Bulletin NSS300 #2
Associated Products (13)Associated Documents - March 1, 2016•Document ID: 10193298Service Bulletin/Repair InstructionsSEATS:BARRIERS; EQUIPMENT
- Mfr Comm. #:
- ATS-150801 V3
- Date Added:
- May 14, 2021
- Manufacturer:
- HONDA
SummaryDoes the front seat-back creak or squeak when you move around in the seat or get in or out of the vehicle? Whats likely causing it is the seat-back fabric rubbing against the foam pad underneath. This noise only happens when the seat gets hot (the seat temperature is over 104° F). Were aware of this concern and were currently working on a solution, so, at this time, theres no product improvement available. Until there is, dont try replacing the seat frame or the seat-back pad. You wont get rid of this noise and you just might wind up with a come-back. Be sure to pass this info along to the service advisor so he or she can inform your customer of the situation.
Associated Products (6)Associated Documents