Kia Optima Hybrid 2017 Owner's Manual page 197

Features of your vehicle
Engine-only propulsion
Engine power is used to move the vehi‐
cle. (Engine Wheel)
5-68
Power assist
Electric and Engine power are used to
move the vehicle. (Battery & Engine
Wheel)
Engine generation
Vehicle is stopped with the Engine
charging the hybrid battery. (Engine
Battery)