2021 KIA NIRO HYBRID EV key battery

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Features of your vehicle
Battery saver function
The purpose of this feature is to
prevent the battery from being dis-
charged if the lights are left in the
ON position. The system automati-
cally shuts off the parking lights 30
seconds after the ignition key is
removed and the driver’s door is
opened and closed.
With this feature, the parking lights
will turn off automatically if the driver
parks on the side of the road at night
and opens the driver’s side door.
If necessary, to keep the parking
lights on when the ignition key is
removed, perform the following:
1) Open the driver-side door.
2) Turn the parking lights OFF and
ON again using the light switch
on the steering column.
Headlight escort function
(if equipped)
If you turn the ignition switch to the
ACC or OFF position with the head-
lights ON, the headlights remain on
for about 5 minutes. However, if the
driver's door is opened and closed,
the headlights are turned off after 15
seconds.
The headlights can be turned off by
pressing the lock button on the trans-
mitter (or smart key) one more or
turning the light switch to the OFF
position.
Daytime running light (DRL)
The Daytime Running Lights (DRL)
can make it easier for others to see the
front of your vehicle during the day.
DRL can be helpful in many different
driving conditions, and it is especially
helpful after dawn and before sunset.
The DRL system will turn the dedi-
cated lamp OFF when:
1. The headlight switch is on
2. The engine is off
3. The front fog light is on.
4. Engaging the Parking Brake
LIGHTING

Driving your vehicle
8 5
ON
The warning lights can be checked
before the engine is started. This is
the normal running position after the
engine is started.
Do not leave the ignition switch ON if
the engine is not running to prevent
battery discharge.START
Turn the ignition switch to the START
position to start the engine. The
engine will crank until you release
the key; then it returns to the ON
position. The brake warning light can
be checked in this position.
The anti-theft steering column lock (if
equipped) is not a substitute for the
parking brake. Before leaving the dri-
ver’s seat, always make sure the shift
lever is engaged in P (Park) for dual
clutch transmission, set the parking
brake fully and shut the engine off.
Unexpected and sudden vehicle
movement may occur if these pre-
cautions are not taken.
WARNING- Key holder
Do not place small purses, mul-
tiple keys, or other heavy acces-
sories on your vehicle key ring.
The driver can accidently push
these objects causing the ACC
position to change while in
motion and disrupt the proper
operation of some of the vehi-
cle's safety features.
WARNING- Ignition switch
Never turn the ignition switch to
LOCK or ACC while the vehicle
is moving. This would result in
loss of directional control and
braking function, which could
cause an accident.

513
Driving your vehicle
✽ ✽

NOTICE
If you leave the ENGINE START/
STOP button in the ACC or ON
position for a long time, the battery
will discharge.
Starting the hybrid system✽ ✽
NOTICE
• The hybrid system will start by
pressing the Engine Start/Stop
button, only when the smart key is
in the vehicle.
• Even when the smart key is in the
vehicle, if it is far away from the
driver, the hybrid system may not
start.
• When the Engine Start/Stop but-
ton is in the ACC or ON position,
and any door is open, the system
checks for the smart key. When
the smart key is not in the vehicle,
the “ ” indicator will blink and
the warning “Key not in vehicle”
will come on. When all doors are
closed, the chime will also sound
for about 5 seconds. Keep the
smart key in the vehicle when in
the ACC position or if the hybrid
system is ON.
WARNING- Starting
vehicle
Never press the ENGINE
START/STOP button while the
vehicle is in motion except in an
emergency. This would result in
loss of directional control and
braking function, which could
cause an accident.
WARNING
Always wear appropriate
shoes when operating your
vehicle. Unsuitable shoes,
such as high heels, ski boots,
sandals, flip-flops, etc., may
interfere with your ability to
use the brake and accelerator
pedals.
Do not start the vehicle with the
accelerator pedal depressed.
The vehicle can move and
lead to an accident.

515
Driving your vehicle
If the battery is weak or the smart
key does not work correctly, you
can start the engine by pressing
the engine start/stop button with
the smart key.
The side with the lock button
should contact the engine
start/stop button directly.
When you press the engine
start/stop button directly with the
smart key, the smart key should
contact the button at a right angle. When the stop lamp fuse is blown,
you can't start the engine normally.
Replace the fuse with a new one. If
it is not possible, you can start the
engine by pressing the ENGINE
START/STOP button for 10 sec-
onds while it is in the ACC posi-
tion. The engine can start without
depressing the brake pedal. But for
your safety always depress the
brake pedal before starting the
engine.
Do not press the ENGINE START/
STOP button for more than 10 sec-
onds except when the stop lamp fuse
is blown.
WARNING - Unintended
vehicle movement
Never leave the smart key in the
vehicle with children or vehicle
occupants who are unfamiliar
with the vehicle operation.
Pushing the ENGINE
START/STOP button while the
smart key is in the vehicle may
result in unintended engine
activation and/or unintended
vehicle movement.
ODEP059008

Driving your vehicle
150 5
Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 8. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 8. The level of charge in
your battery can be checked by an
authorized Kia dealer or a service
station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 9 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.
Check spark plugs and ignition
system
Inspect your spark plugs as
described in chapter 8 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.
Use approved window washer
anti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized Kia dealer and most auto
parts outlets. Do not use engine
coolant or other types of anti-freeze
as these may damage the paint fin-
ish.

67
What to do in an emergency
External power source using 12V
battery
(Except the use of dash cameras)
The use of external power acces-
sories may reduce performance and
function of the vehicle. Especially,
the use of dash cameras may cause
a shut off the power of the vehicle
prior to the dash camera’s automatic
shut-down.
If the power of the car is shut off,
start the vehicle as explained above
(refer to “Over discharge of 12V bat-
tery”).
Method to disconnect the (-)
cable for regular maintenance
(For Hybrid)When the vehicle is under regular
maintenance, make sure to separate
the (-) cable inside the luggage room
before maintenance.
Procedures to separate the (-) cable
is as below :
Fold the rear left side seat.
Using the key or (-) screwdriver,
remove the service cover (A) on
the luggage trim.
Separate the (-) cable (B).
Reassemble in the reverse order of
disassembly.
ODE036021
ODE046170N
ODE046171N

Maintenance
66 7
Instrument panel (Driver’s side fuse panel) (Hybrid)
Fuse NameFuse ratingCircuit Protected
MODULE 510AElectro Chromic Mirror, Audio/Video & Navigation Head Unit, Audio, Shift Lever Indicator, Air Conditioner
Control Module, Rear Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Front Seat
Warmer Control Module, Head Lamp Leveling Device Actuator LH/RH, Crash Pad Switch, AMP (Amplifier)
MODULE 410ALane Keeping Assist Control Module, Crash Pad Switch, Blind-Spot Collision Warning (BCW) Radar Left
Handle side/Right Handle side, EPB, VESS, Front Seat Warmer Control Module
INTERIOR
LAMP10AFront Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Mood Lamp, BCM,
Wireless Charger
A/BAG15APassenger Occupant Detection Sensor, ACU
IG 125AEngine Room Junction Block (Fuse - DCT4, HPCU2, ACTIVE HYDRAULIC BOOSTER3, ECU3)
CLUSTER10AInstrument Cluster
MODULE 310ABCM (Body Control Module), DCT (Dual Clutch Transmission) Shift Lever, Stop Lamp Switch, Driver Door
Module, Passenger Door Module
MEMORY 27.5AActive Air Flap Unit, VESS
MODULE 810AActive Air Flap Unit, Electric Water Pump (Engine), Engine Room Junction Block (Battery C/Fan Relay),
BMS (Battery Management System) Control Module
A/BAG IND7.5AAir Conditioner Control Module, Instrument Cluster
START7.5A[With Smart Key/With Immobilizer] Inhibitor Switch

767
Maintenance
Fuse NameFuse ratingCircuit Protected
MODULE 210AEngine Room Junction Block (Power Outlet Relay), Wireless Charger, BCM (Body Control Module), USB
Charger, Smart Key Control Module, Audio, BMS (Battery Management System) Control Module,
Audio/Video & Navigation Head Unit, Driver Power Outside Mirror Switch, AMP (Amplifier)
PDM 37.5A[Without Smart Key] Immobilizer Module
[With Smart Key] Smart Key Control Module
MEMORY 110AInstrument Cluster, Driver IMS (Integrated memory system) Module, BCM (Body Control Module), Air
Conditioner Control Module, Auto Light & Photo Sensor, Driver Door Module, Passenger Door Module,
ECM (Electric Chromic Mirror)
MULTI MEDIA15AAudio, Audio/Video & Navigation Head Unit
EWP10AElectric Water Pump (HEV)
MDPS7.5AMDPS (Motor Driven Power Steering) Unit
TAIL GATE10ATail Gate Relay, ICM Relay Box (Fuel Filler Door Relay), Fuel Filler Switch
PDM 115ASmart Key Control Module
MODULE 77.5AFront Seat Warmer Control Module, AC Inverter (110V), Front Air Ventilation Seat Control Module, Rear
Seat Warmer Module, AC Inverter Module
WIPER (RR)15AEngine Room Junction Block (Wiper RR Relay), Rear Wiper Motor
HEATED
STEERING15ABCM (Body Control Module)
SUNROOF20ASunroof Motor