The 2015 Honda Civic is offered with two transmissions: a continuously variable transmission (CVT) automatic on most trims, and a 6-speed manual on the Si model.
In the 2015 Civic lineup, the non-Si trims—LX, EX and EX-L—were equipped with a CVT automatic, while the sporty Si was exclusively paired with a 6-speed manual to emphasize driving engagement.
Transmission options by trim
Below is a concise breakdown of which transmissions were offered with each major trim in the U.S. market for that model year.
Si emphasizes a manual transmission
The Civic Si uses a 6-speed manual transmission, with no CVT option for that model year.
- Civic Si: 6-speed manual transmission
- Civic LX: CVT automatic
- Civic EX: CVT automatic
- Civic EX-L: CVT automatic
In practice, these are the documented configurations for the standard Civic lineup in 2015; if you own a specific car, check the build sheet or owner's manual for confirmation of the installed transmission.
Summary
For 2015, the Civic offered two transmissions: a CVT automatic on LX, EX, and EX-L, and a 6-speed manual on the Si. The choice affects driving feel and fuel economy, with the Si delivering a manual-shift experience while the other trims prioritize ease of use and efficiency.