2017 KIA OPTIMA PLUG-IN HYBRID brake

HEV (Hybrid Electric Vehicle) system.................................... 1-02
PHEV (Plug-in Electric Vehicle) system.................................1-03
Charging the plug-in hybrid vehicle....................................... 1-04Charging information............................................................1-04
Charging time........................................................................ 1-04
Charging types.......................................................................1-05
Charging status..................................................................... 1-06
Scheduled charging .............................................................. 1-06
Charging precautions............................................................ 1-06
Normal charge....................................................................... 1-08
Charging status..................................................................... 1-10
Trickle charger....................................................................... 1-12
Driving the hybrid/plug-in hybrid vehicle..............................1-19 Changing plug-in hybrid mode............................................1-19
Warning and indicator lights............................................... 1-19
Energy flow hybrid/plug-in hybrid vehicle............................1-24 Vehicle stop............................................................................ 1-24
EV propulsion......................................................................... 1-24
Power assist.......................................................................... 1-24
Engine only propulsion......................................................... 1-25
Engine generation................................................................. 1-25
Regeneration......................................................................... 1-25
Engine brake.......................................................................... 1-26
Power reserve....................................................................... 1-26
Engine generation/regeneration........................................ 1-26
Engine generation/motor drive.......................................... 1-27
Engine brake/regeneration..................................................1-27
Starting the hybrid/plug-in hybrid vehicle (Smart key)..... 1-28 Starting the hybrid system................................................. 1-28
Economical and safe operation of hybrid system...........1-28 Components of the hybrid/plug-in hybrid vehicle............... 1-30
Safety plug............................................................................. 1-33
Some special features of the hybrid vehicle.................... 1-33
Virtual Engine Sound System (VESS)................................ 1-34
High voltage battery air intake...........................................1-34
If an accident occurs............................................................. 1-34
When the hybrid vehicle shuts off..................................... 1-36
Hybrid system overview

1

• Always keep the charging connectorand charging plug in clean and dry
condition. Be sure to keep the charg‐ ing cable in a condition where there is
no water or moisture.
• Make sure to use the designated charger for charging the vehicle. Us‐
ing any other charger may cause fail‐
ure.
• Before charging the battery, turn the vehicle OFF.
• Be careful not to drop the charging connector. The charging connector
can be damaged.Normal charge
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You can charge your vehicle by plugging
into a public charger at a charging sta‐ tion.
How to connect normal charger
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1. Depress the brake pedal and apply the parking brake.
2. Turn OFF all switches, move the shift lever to P (Park), and turn OFF
the vehicle.
3. After unlocking doors, open the charging door by pressing it.
NOTICE
The charging door does not open
when the theft alarm system is
armed.
Hybrid system overview
1-08

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

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
1-26

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)

1-27
1
Hybrid system overview

STARTING THE HYBRID/PLUG-IN HYBRID VEHICLE (SMART KEY)
Starting the hybrid system
1. Carry the smart key into the vehi‐cle.
2. Make sure the parking brake is firmly 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 ex‐
tremely cold weather or after the
vehicle has not been operated for several days, let the engine warm
up without depressing the acceler‐
ator. • Even if the smart key is in the ve‐ hicle, if it is far away from you, the engine may not start. • When the engine start/stop but‐
ton is in the ACC or ON position, if
any door is open, the system
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. The
indicator will turn off while the
vehicle is moving. Keep the smart
key in the vehicle when using the
ACC position or if the vehicle en‐
gine is on.
If the starting procedure is followed,the "READY" symbol on the instrumentcluster will turn on. For more details,please refer to L

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
1-30

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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1
Hybrid system overview