2020 Honda Civic Si problems, complaints & recalls
Most-reported problem areas: Service Brakes, Hydraulic (1) · Power Train:clutch Assembly (1) · Air Bags (1)
🧭 Reliability snapshot
Compared against other Honda Civic Si model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (5)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-25 · A26-009 · Service Bulletin/Repair Instructions
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).
Engine 2026-08-26 · A26-009 · Service Bulletin/Repair Instructions
service 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.
Engine And Engine Cooling 2023-09-25 · ATI&09252023907 · Service Bulletin/Repair Instructions
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 understan
Engine And Engine Cooling 2023-09-06 · APaS09062023906 · Service Bulletin/Repair Instructions
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 understan
Electrical System 2023-08-23 · APaS08232023902 · Service Bulletin/Repair Instructions
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 understan
What owners report
2025-04-30 · Power Train:clutch Assembly · 70,000 mi“the contact owns a 2020 honda civic si. the contact stated while driving 65 mph, the clutch became inoperable. there was no warning light illuminated. the contact stated that the clutch failed, and transmission slipped out of gear. the vehicle was towed to the dealer, where it was diagnosed that the clutch assembly had failed and needed to be repla…”
2024-07-08 · Service Brakes, Hydraulic“the contact owns a 2020 honda civic. the contact received notifications of nhtsa campaign numbers: 24v064000 (air bags) and 23v458000 (service brakes, hydraulic) however, the parts to do the recall repairs were not yet available. the local dealer was contacted. the contact stated that the manufacturer had exceeded a reasonable amount of time for th…”
2024-06-07 · Air Bags“the contact owns a 2020 honda civic si. the contact received notification of nhtsa campaign number: 24v064000 (air bags) however, the part to do the recall repair was not yet available. the local dealer was contacted. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the manufacturer was not ma…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.