- Thread starter
- #61
The Civic/Prelude/CRV hybrid engine is relatively new but head gasket failures are starting to show up as the milage on them increases. I spoke with a couple of Honda techs and they say they think it is a poorly engineered block deck that is the problem. The problem is a slit or groove between cylinders for thermo efficiency of something. The design flaw is not exclusive to Honda. Chrysler and Ford have has the same issues with their engine designs with the same technology.Hopefully it won't need to be; there is a bit of radio silence as far as the Prelude is concerned. Have any Honda Hybrid engines actually had any problems?
I would say it is a problem for Honda. Otherwise they would not have issued service bulletins for all these cars. It is a decade of cars that have issues. Here in the US Honda is extending the warranty for the head gasket to 10 years/150K miles. It is odd Honda has not included the Prelude yet. It shares the same engine design.
Honda announced the next generation CRV/Civic hybrid will have a new drivetrain. The new CRV was scheduled to be released here in the US in Feb-March '27. Honda just announced it will be delayed for 3 more months. The next gen Civic was also pushed back for some reason. There are talks of moving some Civic production from US plants to Japan.
The warranty extensions apply to these models:
2018-2022 Honda Accord 1.5T (CVT) (Bulletin 26-003)
2018-2022 Honda Accord 1.5T (M/T) (Bulletin 26-004)
2023-2026 Honda Accord (Bulletin 26-005)
2018-2022 Honda Accord Hybrid (Bulletin 26-006)
2023-2026 Honda Accord Hybrid (Bulletin 26-007)
2016-2021 Honda Civic 1.5T (CVT) (Bulletin 26-008)
2016-2021 Honda Civic 1.5T (M/T), 2017-20 Civic Si (Bulletin 26-009)
2022-2026 Honda Civic 1.5T (M/T) & Civic Si (Bulletin 26-010)
2022-2024 Honda Civic 1.5T (CVT) (Bulletin 26-011)
2025-2026 Honda Civic 2.0 (CVT) (Bulletin 26-012)
2025-2026 Honda Civic Hybrid (Bulletin 26-013)
2017-2022 Honda CR-V 1.5T (Bulletin 26-016)
2023-2026 Honda CR-V 1.5T (Bulletin 26-017)
2020-2022 Honda CR-V Hybrid (Bulletin 26-018)
2023-2026 Honda CR-V Hybrid (Bulletin 26-019)
2016-2017 Honda Civic 1.5T (CVT) (Bulletin 26-099) Expires May 31, 2027
2016-2017 Honda Civic 1.5T (M/T), 2017 Civic Si (Bulletin 26-097) Expires May 31, 2027
2017 Honda CR-V 1.5T (Bulletin 26-098) Expires May 31, 2027
2025-2026 Acura ADX (Bulletin 26-001)
2023-2026 Acura Integra (CVT) (Bulletin 26-002)
2023-2026 Acura Integra (M/T) (Bulletin 26-003)
Last edited:







