2019 KIA OPTIMA PHEV engine

H30
Regeneration
Hybrid battery is being charged by
regenerative braking.
(Wheel ➞Battery)
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)
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ENERGY FLOW HYBRID/PLUG-IN HYBRID VEHICLE

H31
Engine Generation/Regeneration
The engine and regenerative brake
system charge up the high-voltage
battery.
(Engine & Wheel ➞Battery)
Engine Generation/Motor Drive
The vehicle is being slowed by engine
compression and regenerative brak-
ing. The hybrid battery is being
charged by regenerative braking.
(Engine ➞Battery ➞Wheel)
Engine Brake/Regeneration
The engine compression can be
used to slow the vehicle. The regen-
erative braking system can be used
to charge the hybrid system.
(Wheel ➞Engine & Battery)
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H32
Starting the Hybrid System
1.Carry the smart key into the vehicle.
2.Make sure the parking brake isfirmly applied.
3.Place the shift lever in the P(Park) position.
In N (neutral) position, you cannot
start the vehicle.
4.Depress the brake pedal.
5.Press the engine start/stop button.
6.The engine should be started with- out pressing the accelerator. In
extremely cold weather or after the
vehicle has not been operated for
several days, let the engine warm up
without depressing the accelerator.
vehicle, if it is far away from you,
the engine may not start.
ton is in the ACC or ON position
and if any door is open, the sys-
tem checks for the smart key. If
the smart key is not in the vehicle,
the warning, "Key is not in vehi-
cle" will come on, and if all doors
are closed, the chime will also
sound for about 5 seconds. Keep
the smart key in the vehicle when
using the ACC position or if the
vehicle engine is on. The indica-
tor will turn off while the vehicle is
moving. If the starting procedure is fol-
lowed, the " " symbol on the
instrument cluster will turn on.
For more details, Please check
chapter 6.
STARTING THE HYBRID/PLUG-IN HYBRID VEHICLE (SMART KEY)

H33
ECONOMICAL and SAFE
OPERATION of Hybrid system
Drive smoothly. Accelerate at amoderate rate and maintain a
steady cruising speed. Don't make
"jack-rabbit" starts. Don't race
between stoplights.
Avoid heavy traffic whenever pos-
sible. Always maintain a safe dis-
tance from other vehicles so you
can avoid unnecessary braking.
This also reduces brake wear.
The regenerative brake generates energy when the vehicle deceler-
ates.
When the hybrid battery power is low, the hybrid system automatical-
ly recharges the hybrid battery.
When the engine runs in "N" posi- tion, the hybrid system cannot gen-
erate electricity. The hybrid battery
cannot recharge in "N" position.
Please refer to chapter 6.
✽ ✽ NOTICE
When the hybrid system is in
READY mode, the engine will auto-
matically start and stop as needed.
The " " symbol will illuminate in
the cluster when the system is oper-
ational.
CAUTION- Extended
cranking
Do not crank the engine for aprolonged period of time with-out the engine starting. Thiscould result in damage to theHEV battery and become totallydischarged.

H34
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE
1. Engine : 2.0L
2. Motor : 38kW (Hybrid) / 50kW (Plug-in hybrid)
3. Transmission : 6AT
4. Hybrid starter generator (HSG)5. HPCU (Hybrid Power Control Unit)
6. High voltage battery system
7. Regenerative brake system
8. Virtual Engine Sound System (VESS)
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The actual shape may differ from the illustration.

H35
The Hybrid battery uses high-voltage
to operate the electric motor and
other components. High voltage is
dangerous if touched.
Your vehicle is equipped with orange
colored insulation which covers over
the high voltage components to pro-
tect people from electric shock.
High voltage warning labels are
attached to some system compo-
nents as additional warnings. Your
vehicle is recommended to be serv-
iced by an authorized Kia dealer.
WARNING - High voltage
components
Never touch orange or high-volt-
age labeled components includ-
ing wires, cables, and connec-
tors. If the insulators or covers
are damaged or removed, severe
injury or death from electrocu-
tion may occur.
WARNING- Touching HPCU
When replacing the fuses in the
engine compartment, never
touch the HPCU. The HPCU car-
ries high voltage. Touching the
HPCU could result in electrocu-
tion, serious injury, or death.
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HPCU
HEV Battery

H37
WARNING - High Waters
Avoid high waters as this may result in your vehicle becom-
ing saturated with water and
could compromise the high
voltage components.
Do not touch any of the high voltage components within
your vehicle if your vehicle
has been submerged in water
equal to half of the vehicle
height. Touching high voltage
components once submerged
in water could result in severe
burns or electric shock that
could result in death or seri-
ous injury.WARNING
-
Exposure to High Voltage
High voltage in the hybrid bat- tery system is very dangerous
and can cause severe burns
and electric shock. This may
result in serious injury or death.
For your safety, never touch, replace, dismantle or remove
any portion of the hybrid bat-
tery system including compo-
nents, cables and connectors.
CAUTION - Cleaning
Engine
When you clean the engine com-partment, do not wash usingwater. Water may cause electricarcing to occur and damage elec-tronic parts and components.
WARNING - Use of Water
or Liquids
If water or liquids come into
contact with the hybrid system
components, and you are also
in contact with the water, severe
injury or death due to electrocu-
tion may occur.
WARNING
-
Hot Components
When the hybrid battery system
operates, the HEV battery sys-
tem can be hot. Heat burns may
result from touching even insu-
lated components of the HEV
system.

H38
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE(CONT.)
Safety plugSome Special Features of the
Hybrid Vehicle.
Hybrid vehicles sound different than
gasoline engine vehicles. When the
hybrid system operates, you may
hear a sound from the hybrid battery
system behind the rear seat. If you
apply the accelerator pedal rapidly,
you may hear a sound. When you
apply the brake pedal, you may hear
a sound from the regenerative brake
system. When the hybrid system is
turned off or on, you may hear a
sound in the engine compartment. If
you depress the brake pedal repeat-
edly when the hybrid system is
turned on, you may hear a sound in
the engine compartment. None of
these sounds indicate a problem.
They are characteristics of hybrid
vehicles.
When the hybrid system is turned on,
the engine may run. This does not
indicate a malfunction. If the " "
symbol is on, the hybrid system is
operating. Even if the gasoline engine
is off, you can operate the vehicle.The HEV system may emit electromag-
netic waves which can affect the per-
formance of electronic devices appli-
ances, such as laptop computers,
which are not part of the vehicle design.
If you park the vehicle for a long time,
the hybrid system will discharge. You
need to drive the vehicle several times
per month to maintain a charge.
When you start the hybrid system in
the "P" transmission position, the
" " symbol is illuminated in the
cluster. The driver can drive the vehi-
cle even if the engine is stopped.
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WARNING- Safety Plug
Never touch the safety plug.
Safety plug is attached to high
voltage hybrid battery system.
Touching safety plug will result
in death or serious injury.
Service personnel should follow
procedure in service manual.
WARNING- Turning off HEV system
When you leave the vehicle, you
should turn off the hybrid sys-
tem. If you depress the accelera-
tor pedal by mistake and the vehi-
cle is not in the "P" position, the
vehicle will accelerate. This may
result in serious injury or death.