Kia Optima Hybrid 2020 Owner's Manual page 10

PHEV (PLUG-IN ELECTRIC VEHICLE) SYSTEM
The Kia Plug-in Hybrid Electric Vehicle (PHEV) shares the characteristics of both a conventional hybrid electric vehi-
cle and an all-electric vehicle.
When used as a conventional hybrid electric vehicle, the HEV computer selectively operates between the engine and
the electric motor or even both at the same time.
When it is operating in the electric vehicle mode, the vehicle is driven only using the electric motor over a certain dis-
tance until the hybrid battery becomes low. The driving distance in EV mode depends on customer driving style and road
conditions. Aggressive driving maneuvers may at times temporarily enable the engine to operate for maximum power.
The hybrid battery can be fully charged by connecting a plug to an external electric power source.
CS (Charge Sustaining) Mode
CD (Charge Depleting) Mode Charging
Electric motor Motor
Engine Charging
Engine+Motor Battery charging
Electric Vehicle Mode Start up/Low speed Acceleration High speed 6 External charging
Deceleration
OJFHP056290L
H3