2021 KIA NIRO immobilizer

Features of your vehicle
8 4
For replacement transmitters, see an
authorized Kia dealer for transmitter
reprogramming.
The transmitter is designed to give
you years of trouble-free use.
However, it can malfunction if
exposed to moisture or static elec-
tricity. If you are unsure how to use
your transmitter or replace the bat-
tery, contact an authorized Kia
dealer.
Using the wrong battery can cause
the transmitter to malfunction. Be
sure to use the correct battery.
To avoid damaging the transmitter,
don't drop it, get it wet, or expose it
to heat or sunlight.
An inappropriately dis-
posed battery can be
harmful to the environment
and may cause harm to
human health. Dispose the
battery according to your
local law(s) or regulation.Immobilizer system
Your vehicle is equipped with an
electronic engine immobilizer system
to reduce the risk of unauthorized
vehicle use.
Your immobilizer system is com-
prised of a small transponder in the
ignition key and electronic devices
inside the vehicle.
With the immobilizer system, when-
ever you insert your ignition key into
the ignition switch and turn it to ON,
verifies if the ignition key is valid.
If the key is determined to be valid,
the engine will start.
If the key is determined to be invalid,
the engine will not start.CAUTION - Transmitter
damage
Do not drop, wet or expose the
keyless entry system transmit-
ter to heat or sunlight.

49
Features of your vehicle
To activate the immobilizer sys-
tem:
Turn the ignition key to the OFF posi-
tion. The immobilizer system acti-
vates automatically. Without a valid
ignition key for your vehicle, the
engine will not start.
To deactivate the immobilizer
system:
Insert the ignition key into the key
cylinder and turn it to the ON position.
In order to prevent theft of your vehi-
cle, do not leave spare keys anywhere
in your vehicle. Your Immobilizer pass-
word is a customer unique password
and should be kept confidential. Do
not leave this number anywhere in
your vehicle.
✽ ✽
NOTICE
When starting the engine, do not use
the key with other immobilizer keys
around. Otherwise the engine may
not start or may stop soon after it
starts. Keep each key separate in
order to avoid a starting malfunction.
Do not put metal accessories near
the ignition switch.
Metal accessories may interrupt the
transponder signal and may prevent
the engine from being started.
✽ ✽
NOTICE
If you need additional keys or lose
your keys, contact an authorized
Kia dealer.
CAUTION- Immobilizer
damage
Do not expose your immobilizer
system to moisture, static elec-
tricity or rough handling. This
may damage your immobilizer.
CAUTION- Immobilizer
alterations
Do not change, alter or adjust
the immobilizer system because
it could cause the immobilizer
system to malfunction.

417
Features of your vehicle
1. Pry open the smart key center
cover.
2. Replace the battery with a new
battery (CR2032). When replacing
the battery, make sure the battery
position.
3. Install the battery in the reverse
order of removal.
you years of trouble-free use, how-
ever it can malfunction if exposed
to moisture or static electricity. If
you are unsure how to use or
replace the battery, contact an
authorized Kia dealer.

the smart key to malfunction. Be
sure to use the correct battery.

don't drop it, get it wet, or expose it
to heat or sunlight.
An inappropriately dis-
posed battery can be harm-
ful to the environment and
human health. Dispose the
battery according to your
local law(s) or regulations.
Immobilizer system
Your vehicle is equipped with an
electronic engine immobilizer system
to reduce the risk of unauthorized
vehicle use.
Whenever the ENGINE START/STOP
button is changed to the ON position,
the immobilizer system checks and
verifies if the key is valid or not.
If the key is valid, the engine will
start.
If the key is invalid, the engine will
not start.
✽ ✽
NOTICE
In order to prevent theft of your
vehicle, do not leave spare keys any-
where in your vehicle. Your
Immobilizer password is a customer
unique password and should be kept
confidential. Do not leave this num-
ber anywhere in your vehicle.
OBD048032
CAUTION - Smart key
damage
Do not drop, get wet or expose
the smart key to heat or sun-
light, or it will be damaged.

Features of your vehicle
18 4
To deactivate the immobilizer
system
Change the ENGINE START/STOP
button to the ON position.
To activate the immobilizer sys-
tem
Change the ENGINE START/STOP
button to the OFF position. The
immobilizer system activates auto-
matically. Without a valid smart key
for your vehicle, the engine will not
start.
In order to prevent theft of your vehi-
cle, do not leave spare keys any-
where in your vehicle.
Your immobilizer password is a cus-
tomer unique password and should
be kept confidential. Do not leave this
number anywhere in your vehicle.
✽ ✽
NOTICE
Keep each key separate in order to
avoid a starting malfunction.
Do not put metal accessories near
the smart key.
Metal accessories may interrupt the
transponder signal and may prevent
the engine from being started.
If you need additional keys or lose
your keys, consult an authorized Kia
dealer.This device complies with Part 15
of the FCC rules.
Operation is subject to the following
two conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any inter-
ference received, including inter-
ference that may cause undesired
operation.
✽ ✽
NOTICE
Changes or modifications not
expressly approved by the party
responsible for compliance could
void the user's authority to operate
the equipment.
CAUTION - Immobilizer
damage
Do not expose your immobilizer
system to moisture, static elec-
tricity and rough handling. This
may damage your immobilizer.
CAUTION - Immobilizer
alterations
Do not change, alter or adjust
the immobilizer system because
it could cause the immobilizer
system to malfunction.

499
Features of your vehicle
Press START button again
(for smart key system)
This warning message illuminates
if you can not operate the ENGINE
START/STOP button when there is
a problem with the ENGINE
START/STOP button system.
It means that you could start the
engine by pressing the ENGINE
START/STOP button once more.
If the warning illuminates each
time you press the ENGINE
START/STOP button, have your
vehicle inspected by an authorized
Kia dealer.
Press START button with key (for
smart key system)
This warning message illuminates
if you press the ENGINE
START/STOP button while the
warning message “Key not detect-
ed” is illuminating.
At this time, the immobilizer indica-
tor light blinks.
Check BRAKE SWITH fuse
(for smart key system)
This warning message illuminates
if the brake switch fuse is discon-
nected.
It means that you should replace
the fuse with a new one. If that is
not possible, you can start the
engine by pressing the ENGINE
START/STOP button for 10 sec-
onds in the ACC position.
Shift to P or N to start engine
(for smart key system)
This warning message illuminates
if you try to start the engine with
the shift lever not in the P (Park) or
N (Neutral) position.
✽ ✽
NOTICE
You can start the engine with the
shift lever in the N (Neutral) posi-
tion. But, for your safety, we recom-
mend that you start the engine with
the shift lever in the P (Park) posi-
tion.
Low washer fluid
This warning message illuminates
on the service reminder mode if
the washer fluid level in the reser-
voir is nearly empty.
It means that you should refill the
washer fluid.
Low fuel
This warning message illuminates
if the fuel tank is nearly empty.
- When the low fuel level warning
light is illuminates.
Add fuel as soon as possible.

Features of your vehicle
116 4
Electronic Stability
Control (ESC) OFF
Indicator Light
This indicator light illuminates:
Once you set the ignition switch or
ENGINE START/STOP button to
the ON position.
- It illuminates for approximately 3
seconds and then goes off.
When you deactivate the ESC sys-
tem by pressing the ESC OFF but-
ton.
❈For more details, refer to
“Electronic Stability Control (ESC)”
in chapter 5.
Immobilizer Indicator
Light (Without Smart Key)
This indicator light illuminates:
When the vehicle detects the
immobilizer in your key properly
while the ignition switch is ON.
- At this time, you can start the
engine.
- The indicator light goes off after
starting the engine.
This indicator light blinks:
When there is a malfunction with
the immobilizer system.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
Immobilizer Indicator
Light (With Smart Key)
This indicator light illuminates for up
to 30 seconds:
When the vehicle detects the
smart key in the vehicle properly
while the ENGINE START/STOP
button is ACC or ON.
- At this time, you can start the
engine.
- The indicator light goes off after
starting the engine.
This indicator light blinks for a few
seconds:
When the smart key is not in the
vehicle.
- At this time, you can not start the
engine.

4117
Features of your vehicle
This indicator light illuminates for 2
seconds and goes off:
When the vehicle cannot detect the
smart key which is in the vehicle
while the ENGINE START/STOP
button is ON.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
This indicator light blinks:
When the battery of the smart key
is weak.
- At this time, you cannot start the
engine. However, you can start
the engine if you press the
ENGINE START/STOP button
with the smart key. (For more
details, refer to “Starting the
hybrid system” in chapter 5.)
When there is a malfunction with
the immobilizer system.
In this case, have your vehicle
inspected by an authorized Kia
dealer.Turn Signal Indicator
Light
This indicator light blinks:
When you turn the turn signal light
on.
If any of the following occurs, there
may be a malfunction with the turn
signal system. In this case, have your
vehicle inspected by an authorized
Kia dealer.
- The indicator light does not blink
but illuminates.
- The indicator light blinks more
rapidly.
- The indicator light does not illumi-
nate at all.
High Beam Indicator
Light
This indicator light illuminates:
When the headlights are on and in
the high beam position
When the turn signal lever is pulled
into the Flash-to-Pass position.
Front Fog Indicator
Light (if equipped)
This indicator light illuminates:
When the front fog lights are on.

Maintenance
66 7
Instrument panel (Driver’s side fuse panel) (Hybrid)
Fuse NameFuse ratingCircuit Protected
MODULE 510A
Electro 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),
Keyboard, OBD
MODULE 410ALane Keeping Assist Control Module, Crash Pad Switch, Blind-Spot Collision Warning (BCW) Radar Left
Handle side/Right Handle side, EPB, VESS
INTERIOR
LAMP10AFront Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Mood Lamp, Wireless
Charger, Rain sensor, Driver warning switch
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