KIA NIRO PLUG-IN HYBRID 2018 Service Manual

H35
AUX. BATTERY SAVER+ (For
Plug-in Hybrid, if equipped)
The Aux. Battery Saver+ is a function
that monitors the charging status of
the 12V auxiliary battery.
If the auxiliary battery level is low, the
main high voltage battery charges
the auxiliary battery.
✽ ✽NOTICE
The Aux. Battery Saver+ function will
be ON when the vehicle is delivered. If
the function is not needed, you may
turn it off in the Users Settings mode
on the LCD display. For more infor-
mation, refer to the "System setting"
on the following page.
Mode

When the vehicle is OFF with all
doors, hood and liftgate closed, the
Aux. Battery Saver+ periodically acti-
vates according to the auxiliary bat-
tery status.

When the engine start/stop button is
in the ON position with the charging
connector plugged in, the function
activates according to the auxiliary
battery status to prevent over-dis-
charge of the auxiliary battery.
✽ ✽NOTICE
The Aux. Battery Saver+ activates
maximum of 20 minutes. If the Aux.
Battery Saver+ function activates
more than 10 times consecutively, in
the Automatic Mode the function
will stop activating, judging that
there is a problem with the auxiliary
battery. In this case, drive the vehi-
cle for some period of time. The
function will start activating if the
auxiliary battery returns to normal.
CAUTION
The Aux. Battery Saver+ func-
tion cannot prevent batterydischarge if the auxiliary bat-tery is damaged, worn out,used as a power supply orunauthorized electronicdevices are used.
If the Aux. Battery Saver+ function was activated, a mes-sage will be displayed on theinstrument cluster and thehigh voltage battery level mayhave decreased.

H36
System setting
The driver can activate the Aux.
Battery Saver+ function by placing
the engine start/stop button to the
ON position and by selecting:
"User Settings \bOther Features \b
Aux. Battery Saver+"
LCD message
This message is displayed when the
Aux. Battery Saver+ function has
been completed when the vehicle is
turned ON.
However, if the LCD message pops
up frequently, have your vehicle`s
auxiliary battery or electric/electronic
components serviced by an author-
ized Kia dealer.
ODEP047473N
WARNING
The Aux. Battery Saver+ relies
on the high voltage battery to
charge the 12V battery. The
charging indicator lamp will blink
rapidly when this is occurring.
To reduce the risk of electrical
shock, do not touch any high
voltage components (orange) or
other electrical devices while
charging is occurring.
ODEPQ017051
PLUG-IN HYBRID ENERGY FLOW (CONT.)

H37
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 can not
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,
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 vehicle"
will come on, and if all doors are
closed, the chime will also sound
for about 5 seconds. The indica-
tor will turn off while the vehicle is
moving. Keep the smart key in the
vehicle when using the ACC posi-
tion or if the vehicle engine is on. If the starting procedure is fol-
lowed, the " " symbol on the
instrument cluster will turn on. For
more details, Please check chap-
ter 4.
STARTING THE HYBRID/PLUG-IN HYBRID VEHICLE (SMART KEY)

H38
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 automatically
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 becomingtotally discharged.
STARTING THE HYBRID/PLUG-IN HYBRID VEHICLE (SMART KEY) (CONT.)

H39
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE
1. Engine : 1.6 L
2. Motor : 32 kw (hybrid)/44.5 kw (plug-in hybrid)
3. Transmission : 6 DCT
4. Hybrid starter generator (HSG)5. HPCU (Hybrid Power Control Unit)
6. High voltage battery system
7. Generative brake system
8. Virtual Engine Sound System (VESS)
ODEP017006N❈
The actual shape may differ from the illustration.

H40
The Hybrid battery uses high voltage
to operate the electric motor and
other components and other compo-
nents. High voltage is dangerous if
touched.
Your vehicle is equipped with orange
colored insulation and covers over
the high voltage components to pro-
tect people from electric shock. High
voltage warning labels are attached
to some system components as addi-
tional warnings. Have your vehicle
serviced by an authorized Kia dealer.
WARNING - High voltage
components
Never touch orange or high
voltage labeled components
including wires, cables, and
connections. If the insulators or
covers are damaged or
removed, severe injury or death
from electrocution 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.
ODEQ016002
ODEQ016003
HPCU
HEV Battery
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)

H41
WARNING - Battery elec-trolyte
As with all batteries, avoid fluid
contact with the Hybrid battery.
If the battery is damaged and if
electrolyte comes in contact
with your body, clothes or eyes,
immediately flush with a large
quantity of fresh water.
WARNING - After market
battery charger
Do not use an after-market bat-
tery charger to charge the
Hybrid battery. Doing so may
result in death or serious injury.
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 the 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 elec-
tric shock that could result in
death or serious injury.
ODEQ016004
MotorCAUTION - High Voltage
Battery Damage
When loading your vehicle, be careful of transporting items ina manner that could damage thehigh voltage battery. Do notstore items on top of the highvoltage battery or overload thetrunk area. Such actions mayultimately damage the high volt-age battery unit.
CAUTION - Carrying
Liquids in Trunk
Do not load large amounts of liquid in open containers in thevehicle. If spilled onto the HEVbattery, the liquid may cause ashort or further damage to thebattery.

H42
✽
✽NOTICE - Prolonged parking
Prolonged parking might cause bat-
tery discharge and operation failure
due to natural discharge. Driving
the vehicle approximately once
every 2 months, more than 9 miles
(15 km) is recommended. The bat-
tery will be charged automatically
when driving the vehicle.
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.
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 system
can be hot. Heat burns may result
from touching even insulated
components of the HEV system.
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.
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)

H43
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.
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.
ODEQ016006
■Hybrid
ODEPQ017038
■Plug-in Hybrid

H44
The HEV system may emit electro-
magnetic waves which can affect the
performance of electronic devices
appliances, such as laptop comput-
ers, 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 approximate-
ly once every 2 months, more than 9
miles (15 km) is recommended.
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.Virtual Engine Sound System
(VESS)
The Virtual Engine Sound System
generates engine sound for pedestri-
ans to hear vehicle sound because
there is limited sound while electric
motor power is used.
If the vehicle is moving at lowspeed, the VESS will operate.
When the gear is shifted to R (Reverse), an additional warning
sound will be heard.
WARNING - Turning off
HEV system
When you leave the vehicle, you
should turn off the hybrid sys-
tem. If you depress the acceler-
ator pedal by mistake and the
vehicle is not in the "P" posi-
tion, the vehicle will accelerate.
This may result in serious injury
or death.
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)