2017 KIA OPTIMA PLUG-IN HYBRID Battery

4. Depress the brake pedal and applythe parking brake.
5. After unlocking doors, open the charging door by pressing it.
NOTICE
The charging door does not open
when the theft alarm system is
armed.
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6. Remove any dust on the chargingconnector and charging inlet. 7. Hold the charging connector handle.
Then, insert it into the charging in‐
let, until you hear a click sound. If it
is not fully connected, improper
connection between the charging
connector and the charging termi‐
nals are a potential fire hazard.
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8. Charging starts automatically. Check if the power lamp and charg‐
ing lamp (orange) are ON.
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9. Check if the charging cable connec‐ tion indicator of the high voltage
battery in the instrument cluster is
turned ON.
Charging does not occur when the
indicator is OFF. When the charging
connector is not connected proper‐
ly, reconnect the charging cable to
charge.

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1
Hybrid system overview

NOTICE
•The charging is in progress only
with the shift lever is in P (Park).
Charging the battery with the
Engine Start/Stop button in the
ACC position is possible. Howev‐
er, it may discharge the 12-V
battery. Thus, if possible, charge
the battery with the Engine
Start/Stop button in the OFF po‐
sition.
•Moving the shift lever from P
(Park) to R (Reverse)/
N(Neutral)/D (Drive) stops the
charging process. To restart the
charging process, move the shift
lever to P (Park), press the En‐
gine Start/Stop button to the
OFF position, and disconnect the
charging cable. Then, connect
the charging cable and restart
the vehicle again.
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10. After charging has started, the es‐timated charging time is displayed
on the instrument cluster for about
1 minute. It is also displayed, when
the driver’s door is opened with
charging in progress. When sched‐
uled charging is set, the estimated
charging time is displayed as "--".
Unlock charging door in emergency
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If the charging door does not open due
to battery discharge, open the hood and slightly pull the emergency cable as
shown above. The charging door will
then open.
Hybrid system overview
1-14

Checking charging status
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You can monitor the charging status
outside of the vehicle when charging the high-voltage battery.
Charging StatusIndicator
Charging in pro‐ gress Illuminates (green)
Fully charged Off
Scheduled charg‐ ing Blinks (green) and
then turns off
Malfunction Blinks (red)

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1
Hybrid system overview

DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE
Changing plug-in hybrid mode
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Pressing the HEV button changes the
plug-in hybrid system modes, as below. • Shortly pressed: EV mode ↔ HEV mode
• Press and hold: It changes to the HEV-charging
mode.
When the HEV button is pressed in the
HEV-charging mode, the mode changes
as below.
- Shortly pressed : It changes to the CS
mode. -
Press and hold: It remains in the
HEV-charging mode.
Plug-in hybrid mode indicator
• CD (Charge Depleting, Electric) mode
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The high-voltage (hy‐ brid) battery is used
to drive the vehicle.
• CS (Charge Sustaining, Hybrid) mode
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The high-voltage (hy‐ brid) battery and gas‐oline engine is used to
drive the vehicle.
• HEV-charging mode
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Gasoline engine is
used to drive the ve‐
hicle and charge thehigh-voltage (hybrid)battery.
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A corresponding message is displayed
to indicate the selected mode.
Warning and indicator lights
Ready indicator
This indicator illuminates:
When the vehicle is ready to be driven.
- ON: Normal driving is possi‐ ble.
- OFF: Normal driving is not possible, or a problem
has occurred.
- Blinking: Emergency driving.
When the ready indicator goes OFF or blinks, there is a problem with the sys‐
tem. In this case, we recommend that
you have your vehicle inspected by an authorized Kia dealer.

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1
Hybrid system overview

Remaining charge time (Plug-in
hybrid)
The message is displayed to notify the
remaining time to fully charge the bat‐ tery.
EV/HEV/CHG modes (Plug-in
hybrid)
A corresponding message is displayed
when a mode is selected by pressing the HEV button.
Battery charged. Maintaining
current (Plug-in hybrid)
This message is displayed when unable
to convert to charging mode even when pressing and holding the HEV button
during EV/HEV mode driving because
the high-voltage (hybrid) battery is al‐ ready fully charged.
Low battery. Maintaining hybrid
(Plug-in hybrid)
This message is displayed when unable
to convert to EV mode even when pressing the HEV button during HEV
mode driving due to insufficient high-
voltage (hybrid) battery level.
Low battery temp. Maintaining
current (Plug-in hybrid)
This message is displayed when unable
to convert to EV mode even when pressing the HEV button during HEV
mode driving due to low battery tem‐
perature.
Charging complete. Switching to
hybrid (Plug-in hybrid)
This message is displayed automatical‐
ly converting to HEV mode due to com‐
pleted battery charging during charging mode driving.
Charger error! (Plug-in hybrid)
This messages is displayed when the
charging failed by external charger er‐
ror.
This message is for Normal charger.
The purpose of this message is to let you know the error has occurred in
charger itself not in vehicle.
Low/high system temp.
Maintaining hybrid (Plug-in hybrid)
This message is displayed when unable
to convert to EV mode even when
pressing the HEV button during HEV mode driving due to low/high system
temperature.
Switching to hybrid mode to allow
heating (Plug-in hybrid)
• When the coolant temperature is lower than -14 °C (57 °F), and you
turn the climate control On for heat‐
ing, the above message will be dis‐
played in the cluster. Then, the vehi‐ cle will automatically switch to HEV
mode.
• When the coolant temperature is higher than -14 °C (57 °F), or you
turn the climate control Off, the vehi‐
cle will automatically return to EV mode.
Wait until fuel door opens (Plug-in
hybrid)
The message is displayed when you at‐
tempt to open the fuel filler lid with the fuel tank pressurized. Wait until the
fuel tank is depressurized.
NOTICE
•It may take up to 20 seconds to
open fuel filler lid.
(Continued)

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1
Hybrid system overview

ENERGY FLOW HYBRID/PLUG-IN HYBRID VEHICLE
Kia hybrid system notifies the drivers
of energy flow in various operating
modes. Eleven Modes show drivers the current operating condition.
Vehicle stop
The mode means the vehicle at stop.
(There is no energy flow.)
EV propulsion
Electric power is used to move the ve‐
hicle. (Battery Wheel)
Power assist
Electric and Engine power are used to
move the vehicle. (Battery & Engine
Wheel)
Hybrid system overview
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Engine only propulsion
Engine power is used to move the vehi‐
cle. (Engine
Wheel)
Engine generation
Vehicle is stopped with the Engine
charging the hybrid battery. (Engine
Battery)
Regeneration
Hybrid battery is being charged by re‐
generative braking. (Wheel
Battery)

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1
Hybrid system overview

Engine brake
The vehicle is being slowed by engine
compression. (Wheel
Engine)
Power reserve
Engine is both driving the vehicle and
charging the hybrid battery. (Engine
Wheel & Battery)
Engine generation/regeneration
The engine and regenerative braking
system charge the hybrid battery driv‐ ing deceleration. (Engine & Wheel
Battery)
Hybrid system overview
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