Automatic Transmission

Description and Operation

~1min read

Description

The 6-speed HEV automatic transmission consists of the engine clutch (E/C), overdrive clutch (OD/C), one-way clutch (OWC), low reverse brake (LR/B), underdrive brake (UD/B), 2-6 brake (2-6/B), and 35R clutch (35R/C). These clutches and brakes are controlled by hydraulic pressure control.

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.