Kia Optima Hybrid 2017 Owner's Manual page 199

Features of your vehicle
Engine brake
The vehicle is being slowed by engine
compression. (Wheel Engine)
5-70
Engine generation/motor drive
The vehicle is being slowed by engine
compression and regenerative braking.
The hybrid battery is being charged by
regenerative braking. (Engine
tery Wheel)
Engine brake/regeneration
The engine compression can be used to
slow the vehicle. The regenerative
braking system can be used to charge
Bat‐ the hybrid system. (Wheel
Battery)
Engine &