2017 KIA OPTIMA PLUG-IN HYBRID Battery

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
Battery Wheel)
Engine brake/regeneration
The engine compression can be used to
slow the vehicle. The regenerative braking system can be used to charge
the hybrid system. (Wheel
Engine & Battery)

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1
Hybrid system overview

COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE
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1. Engine: 2.0L
2. Motor: 35 kW
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)
❈ The actual shape may differ from
the illustration.
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 and covers over the high voltage components to protect
people from electric shock. High voltage
warning labels are attached to some system components as additional
warnings. Your vehicle is recommended
to be serviced by an authorized Kia dealer.
Hybrid system overview
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WARNING
Never touch orange or high voltagelabeled components including wires,cables, and connections. If the insu‐lators or covers are damaged or re‐moved, severe injury or death fromelectrocution may occur.
WARNING
When replacing the fuses in the en‐gine compartment, never touch theHPCU. The HPCU carries high volt‐age. Touching the HPCU could resultin electrocution, serious injury, ordeath.
CAUTION
•Do not pile up any items in an areabehind the high voltage battery. Ina crash, the battery may becomeunstable, or its performance maydegrade.
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•Do not apply strong force nor pileup any items above the trunk.Such an attempt may distort thehigh voltage battery case, causinga safety problem or degrading theperformance.
•Be careful when loading inflamma‐ble liquid in trunk. It could causeoperational and safety degrada‐tion if the liquid leaks and flows inhigh voltage battery.
.PUPS

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Hybrid system overview

WARNING
As with all batteries, avoid fluid con‐tact with the Hybrid battery. If thebattery is damaged and if electro‐lyte comes in contact with yourbody, clothes or eyes, immediatelyflush with a large quantity of freshwater.
WARNING
Do not use an after-market batterycharger to charge the Hybrid bat‐tery. Doing so may result in death orserious injury.
WARNING
nHigh Waters
•Avoid high waters as this may re‐sult in your vehicle becoming satu‐rated with water and could com‐promise the high voltage compo‐nents.
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•Do not touch any of the high volt‐age components within your vehi‐cle if your vehicle has been sub‐merged in water equal to half ofthe vehicle height. Touching highvoltage components once sub‐merged in water could result in se‐vere burns or electric shock thatcould result in death or serious in‐jury.
WARNING
nCarrying Liquids in Trunk
Do not load large amounts of waterin open containers into the vehicle. Ifthe water spills onto the HEV bat‐tery, it may cause a short and dam‐age the battery.
CAUTION
nCleaning Engine
When you clean the engine compart‐ment, do not wash using water. Wa‐ter may cause electric arcing to oc‐
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cur and damage electronic parts andcomponents.
WARNING
nExposure to High Voltage
•High voltage in the hybrid batterysystem is very dangerous and cancause severe burns and electricshock. This may result in seriousinjury or death.
•For your safety, never touch, re‐place, dismantle or remove anyportion of the hybrid battery sys‐tem including components, cablesand connectors.
WARNING
nUse of Water or Liquids
If water or liquids come into contactwith the hybrid system components,and you are also in contact with thewater, severe injury or death due toelectrocution may occur.
Hybrid system overview
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WARNING
nHot Components
When the hybrid battery system op‐erates, the HEV battery system canbe hot. Heat burns may result fromtouching even insulated componentsof the HEV system.
Safety plug
DANGER
Never touch the safety plug. Safetyplug is attached to high voltage hy‐brid battery system. Touching safe‐ty plug will result in death or seriousinjury. Service personnel should fol‐low procedure in service manual.
Some special features of the
hybrid vehicle
Hybrid vehicles sound different than
gasoline engine vehicles. When the hy‐ brid 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 com‐ partment. If you depress the brake
pedal repeatedly when the hybrid sys‐
tem is turned on, you may hear a sound in the engine compartment.
None of these sounds indicate a prob‐
lem.
They are characteristics of hybrid vehi‐ cles. When the hybrid system is turned on,
the engine may run. This does not indi‐
cate a malfunction. If the "READY" symbol is on, the hybrid system is op‐
erating. 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 applian‐
ces, 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
"READY" symbol is illuminated in the cluster. The driver can drive the vehicle
even if the engine is stopped.
WARNING
When you leave the vehicle, youshould turn off the hybrid system. Ifyou depress the accelerator pedal bymistake and the vehicle is not in the"P" position, the vehicle will acceler‐ate. This may result in serious injuryor death.

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Hybrid system overview

Virtual Engine Sound System
(VESS)
The Virtual Engine Sound System gen‐
erates an engine sound for pedestrians to hear vehicle while at low speeds in
EV mode.
High voltage battery air intake
Hybrid battery air intake
The hybrid battery air intake is located
on the bottom of the rear seats. The air intake cools down the hybrid bat‐
tery. When the hybrid battery air in‐
take is blocked, the hybrid battery may be overheated. Do not obstruct the air
intake with any other objects.
Plug-in Hybrid Vehicle
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The high-voltage battery air intake is
located on the left side of the rear seats. The air intake cools down the
high-voltage battery.
When the high-voltage battery air in‐
take is blocked, the high-voltage bat‐ tery may be overheated and the vehicle
performance may become limited and
set a hybrid warning lamp. Do not ob‐ struct the air intake with any other ob‐
jects.
WARNING
nAir Intake
•Blocking the air intake behind therear seats may damage the HEVbattery.
•Do not allow any water into the airintake even when cleaning. If anywater enters the air intake, theHybrid battery may cause an elec‐tric shock which can cause seriousinjury or death due to electrocu‐tion.
If an accident occurs
• Avoid the engine compartment.
• Avoid any orange or high voltage wires, cables, or components.
• Assume that a high voltage compo‐ nent is exposed and move away fromthe vehicle as promptly as possible.
• Refer to L

WARNING
•After parking the vehicle, shift thetransmission into "P" position. Turnoff the hybrid system by pushingthe Engine Start/Stop button.
•For your safety, do not touch highvoltage cables, connectors andpackage modules. High Voltagecomponents are orange in color.
•Exposed cables or wires may bevisible inside or outside of the ve‐hicle. Never touch the wires or ca‐bles, because an electrical shockmay occur causing injury or death.
•If a fire occurs, to extinguish asmall high-voltage battery fire,the following techniques can beused:-Dry chemical
-CO2
-Large amounts of water
-Regular foamFor a large high-voltage batteryfire, use these types of extin‐guishing methods:
-Large amounts of water
-Fog
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-Regular foam
•If you need towing, refer to L

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3.Leave the vehicle and evacuateto the safety place.
4.Call emergency services for helpand let them know the vehicle isa Hybrid vehicle.
If you have an extinguisher, extin‐guish a fire carefully.Do not touch high voltage cables,connectors and package modules.High voltage components are orangein color.Exposed cables or wires may be visi‐ble inside or outside of the vehicle.Never touch the wires or cables, be‐cause an electrical shock may occurcausing injury or death.
WARNING
If a submersion in water occurs:If your vehicle was flooded and hassoaked carpeting or water on theflooring, you should not try to startthe Hybrid system. Never touch thehigh voltage cables, connectors andpackage modules, because an elec‐
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trical shock may occur causing injuryor death. High Voltage cables are or‐ange in color.We recommend that the car towedto an authorized Kia dealer.
When the hybrid vehicle shuts
off
When the high voltage battery or 12-
volt battery discharges, or fuel tank is empty, the hybrid system may not op‐
erate.
If the Hybrid system stops operating
while the vehicle is moving, reduce the vehicle speed gradually. Pull your vehi‐
cle off the road in a safe area, and shift
the transmission in to Park (P) position and: 1. Turn on the hazard warning flash‐ ers.
2. Set the start button at OFF, and try to start the Hybrid system by ap‐
plying the brake pedal and pushing
the start button.
3. If the Hybrid system will not oper‐ ate, refer to L