Kia Optima Hybrid 2020 Owner's Manual page 195

Hybrid Battery SOC
(State of Charge) Gauge
■ for Hybrid
■ for Plug-in Hybrid
This gauge indicates the remaining
hybrid battery power. If the SOC is
near the "L (Low)" level, the vehicle
automatically operates the engine to
charge the battery.
However, if the Service Indicator (
and Malfunction Indicator Lamp (MIL)
( ) turns on when the SOC gauge is
near the "L (Low)" level, have your
vehicle inspected by an authorized
Kia dealer.
✽ ✽ NOTICE
Never try to start the vehicle if the
fuel tank is empty. In this condition,
the engine cannot charge the high
voltage battery of the hybrid system.
OJFH045375
If you try to start the vehicle when
the fuel is empty, the high voltage
battery will become discharged and
be damaged.
OJFHP046487N
Features of your vehicle
Plug-in hybrid mode indicator
)
• CD (Charge Depleting, Electric) mode
: The high-voltage
(hybrid) battery is
used to drive the
vehicle.
OJFHP048420N
• CS (Charge Sustaining, Hybrid) mode
: The
(hybrid) battery and
gasoline engine is
used to drive the
vehicle.
OJFHP048421N
OJFHP048634L/OJFHP048633L
A corresponding message is displayed
to indicate the selected mode.
high-voltage
4 57