2021 KIA NIRO ECU

3. Install the towing hook by turning it
clockwise into the hole until it is
fully secured.
4. Remove the towing hook and
install the cover after use.Emergency towing
If towing is necessary, have it
done by an authorized Kia dealer
or a commercial tow truck service.If towing service is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency tow-
ing hook under the front (or rear) of
the vehicle. Use extreme caution
when towing the vehicle. A driver
must be in the vehicle to steer it and
operate the brakes.
Towing in this manner may be done
only on hard-surfaced roads for a
short distance and at low speed.
Also, the wheels, axles, power train,
steering and brakes must all be in
good condition.
Do not use the tow hooks to pull a
vehicle out of mud, sand or other
conditions from which the vehicle
cannot be driven out under its own
power.
Avoid towing a vehicle heavier than
the vehicle doing the towing.
The drivers of both vehicles should
communicate with each other fre-
quently.
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■Front
■ Rear
What to do in an emergency
41 6

Attach a towing strap to the tow
hook.
Use only a cable or chain specifical-
ly intended for use in towing vehi-
cles. Securely fasten the cable or
chain to the towing hook provided.
Accelerate or decelerate the vehicle
in a slow and gradual manner while
maintaining tension on the tow rope
or chain to start or drive the vehicle,
otherwise tow hooks and the vehi-
cle may be damaged.
Before emergency towing, check if
the hook is not broken or damaged.
Fasten the towing cable or chain
securely to the hook.
Do not jerk the hook. Apply it
steadily and with even force.
To avoid damaging the hook, do not
pull from the side or at a vertical
angle. Always pull straight ahead. Use a towing strap less than 16
feet (5 m) long. Attach a white or
red cloth (about 12 inches (30 cm)
wide) in the middle of the strap for
easy visibility.
Drive carefully so that the towing
strap is not loosened during tow-
ing.
The driver must be in the vehicle
for steering and braking operations
when the vehicle is towed and pas-
sengers other than the driver must
not be allowed to be on board.
CAUTION
Using a portion of the vehicle
other than the tow hooks for
towing may damage the body of
your vehicle.
WARNING- Emergency
Towing Precautions
Use extreme caution when tow-
ing the vehicle.
Avoid sudden starts or erratic
driving maneuvers which
would place excessive stress
on the emergency towing hook
and towing cable or chain. The
hook and towing cable or
chain may break and cause
serious injury or damage.
If the disabled vehicle is
unable to be moved, do not
forcibly continue the towing.
We recommend that you con-
tact an authorized Kia dealer
or a commercial tow truck
service for assistance.
Tow the vehicle as straight
ahead as possible.
Keep away from the vehicle
during towing.
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642
What to do in an emergency

Maintenance
16 7
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
A Genuine Kia air cleaner filter is
recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
When assembling parts, be sure to
wipe the inside and outside of the
boot bottom of the ignition coil and
the insulator of the spark plug with a
soft cloth to prevent contamination of
the spark plug insulator.
Cooling system
Check the cooling system compo-
nents, such as the radiator, coolant
reservoir, hoses and connections for
leakage and damage. Replace any
damaged parts.
Coolant (Engine / Inverter)
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Dual clutch transmission Fluid
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.

Maintenance
24 7
✽
✽
NOTICE
Make sure the coolant cap is proper-
ly closed after refill of coolant.
Otherwise the engine could be over-
heated while driving.
1. Check if the radiator cap label is
straight front.2. Make sure that the tiny protru-
sions inside the coolant cap
should be securely interlocked.WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator
are hot. Scalding hot coolant
and steam may blow out under
pressure which may result in
serious injury.
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■Engine room front view
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■Engine room rear view

731
Maintenance
Checking the parking brake
(if equipped)
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 66 lb, 294 N
(30 kg) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
have the parking brake adjusted by
an authorized Kia dealer.
Stroke : 6~7 notch
PARKING BRAKE
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739
Maintenance
BATTERY (PLUG-IN HYBRID)
For best battery service
Keep the battery securely mount-
ed.
Keep the battery top clean and dry.
Keep the terminals and connec-
tions clean, tight, and coated with
petroleum jelly or terminal grease.
Rinse any spilled electrolyte from
the battery immediately with a
solution of water and baking soda.
If the vehicle is not going to be
used for an extended time, discon-
nect the battery cables.Always read the following
instructions carefully when
handling a battery.
If any electrolyte gets into
your eyes, flush your eyes
with clean water for at least
15 minutes and get immedi-
ate medical attention.
If electrolyte gets on your
skin, thoroughly wash the
contacted area. If you feel
pain or burning sensation,
get medical attention imme-
diately.
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
or regulation.
The battery contains lead. Do
not dispose of it after use.
Please return the battery to
an authorized Kia dealer to
be recycled.
Never attempt to recharge the bat-
tery when the battery cables are con-
nected.
WARNING- Risk of
explosion
Keep lit cigarettes and
all other flames or
sparks away from the
battery.
The battery contains
hydrogen -- a highly
combustible gas which
will explode if it comes
in contact with a flame or
spark.
Keep batteries out of the
reach of children
because batteries con-
tain highly corrosive
SULFURIC ACID and
electrolytes. Do not
allow battery acid to
contact your skin, eyes,
clothing or paint finish.
Wear eye protection
when charging or work-
ing near a battery.
Always provide ventila-
tion when working in an
enclosed space.
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759
Maintenance
✽ ✽
NOTICE
• When replacing fuse, turn the
ignition “OFF” and turn off
switches of all electrical devices
then remove battery (-) terminal.
• The actual fuse/relay panel label
may differ from equipped items.
Inner panel fuse replacement
1. Turn the engine start/stop button
to the OFF position and all other
switches off.
2. Open the fuse panel cover.
If the switch is located in the “OFF”
position, a caution indicator will be
displayed in the cluster.
WARNING- Electrical Fire
Always ensure replacements
fuses and relays are securely
fastened when installed. Failure
to do so can result in a vehicle
fire.
CAUTION
When replacing a blown fuse
or relay, make sure the new
fuse or relay fits tightly into
the clips. Failure to tightly
install the fuse or relay may
cause damage to the wiring
and electric systems.
Do not remove fuses, relays
and terminals fastened with
bolts or nuts. The fuses, relays
and terminals may not be fas-
tened correctly which may
cause vehicle damage.
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761
Maintenance
Fuse switch
Always set the fuse switch to the ON
position before using the vehicle.
If you move the switch to the OFF
position, some items such as audio
and digital clock must be reset and
transmitter (or smart key) may not
work properly. When the switch is
Off, the caution indicator will be dis-
played on the instrument cluster.
Always place the fuse switch in the
ON position while driving the vehicle.
If the switch is located in the “OFF”
position, a caution indicator will be
displayed in the cluster.
Engine compartment fuse
replacement
1. Turn the engine start/stop button
to the OFF position and all other
switches off.
2. Remove the fuse panel cover by
pressing the tab and pulling the
cover up. When the blade type
fuse is disconnected, remove it by
using the clip designed for chang-
ing fuses located in the engine
compartment fuse box. Upon
removal, securely insert reserve
fuse of the same rating.
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CAUTION - Fuse Panel
Covers
Set all switches to ON before
driving.
If the vehicle is going to be
unused for over 1 month, set
all switches to OFF to prevent
the batteries from draining.
The contact points of the
switches may wear out with
excessive use. Please refrain
from excessive use of the
switches (except for long-term
parking for over 1 month).