2021 KIA NIRO HYBRID EV coolant level

Maintenance
8 7
At least monthly:
Check the coolant level in the
engine coolant reservoir.
Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all
tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
At least twice a year
(i.e., every Spring and Fall) :
Check the radiator, heater and air
conditioning hoses for leaks or
damage.
Check the windshield washer
spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes,
shields and clamps.
Check the lap/shoulder belts for
wear and function.
At least once a year :
Clean the body and door drain
holes.
Lubricate the door hinges and
check the hood hinges.
Lubricate the door and hood locks
and latches.
Lubricate the door rubber weather-
strips.
Check the air conditioning system.
Inspect and lubricate dual clutch
transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

Maintenance
18 7
Exhaust pipe and muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.When checking engine oil, engine
coolant, brake fluid, and washer fluid,
always be sure to clean the area
around any filler plug, drain plug, or
dipstick before checking or draining
any lubricant or fluid. This is espe-
cially important in dusty or sandy
areas and when the vehicle is used
on unpaved roads. Cleaning the plug
and dipstick areas will prevent dirt
and grit from entering the engine and
other mechanisms that could be
damaged.
CHECKING FLUID LEVELS

721
Maintenance
COOLANT
The high-pressure cooling system
has a reservoir filled with year round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year: at
the beginning of the winter season,
and before traveling to a colder cli-
mate.Checking the coolant level Turn the engine off and wait until it
cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the cool-
ing system.
When you are sure all the pressure
has been released, press down on
the cap, using a thick towel, and
continue turning counterclockwise
to remove it.
Even if the engine is not operating,
do not remove the radiator cap or
the drain plug while the engine and
radiator are hot. Hot coolant and
steam may still blow out under
pressure, causing serious injury.
The engine coolant and/or inverter
coolant level is influenced by the
hybrid system temperature. Before
checking or refilling the engine
coolant and/or inverter coolant,
turn the hybrid vehicle off.
WARNING
Removing radiator
cap
Never attempt to remove the
radiator cap while the engine is
operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal injury
from escaping hot coolant or
steam.
CAUTION - Radiator cap
Never attempt to remove the
radiator cap while the engine is
operating or hot. Doing so
might lead to cooling system
and engine damage.

Maintenance
22 7
Engine coolant
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should be filled
between MAX and MIN marks on the
side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to MAX, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.
Inverter coolant
The coolant level should be filled
between MAX and MIN marks on the
side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to MAX, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.
WARNING- Cooling fan
Use caution when
working near the
blade of the cooling
fan. The electric
motor (cooling fan) is
controlled by engine coolant
temperature, refrigerant pres-
sure and vehicle speed. it may
sometimes operate even when
the engine is not running.
ODE076005ODEP079053

Maintenance
30 7
WASHER FLUID
Checking the washer fluid
level
The reservoir is translucent so that
you can check the level with a quick
visual inspection.
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
WARNING- Flammable
fluid
Do not allow the washer fluid to
come in contact with open
flames or sparks. The windshield
washer fluid reservoir is flamma-
ble under certain circumstances.
This can result in a fire.WARNING- Windshield
fluid
Do not drink the windshield
washer fluid. The windshield
washer fluid is poisonous to
humans and animals.
WARNING- Coolant
Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
Radiator coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control.
ODE076009

I3
Index
Power brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
Vehicle Stability Management (VSM) . . . . . . . . . . . 5-50
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Child Restraint System (CRS) . . . . . . . . . . . . . . . . . . . 3-35
Children always in the rear . . . . . . . . . . . . . . . . . . . 3-35
Installing a Child Restraint System (CRS) . . . . . . . 3-39
Selecting a Child Restraint System (CRS) . . . . . . . 3-36
Climate control air filter . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Checking the coolant level . . . . . . . . . . . . . . . . . . . . 7-21
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Inverter coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . 7-23
Cruise Control (CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-98
Cruise control switch . . . . . . . . . . . . . . . . . . . . . . . . 5-99
To cancel cruise control . . . . . . . . . . . . . . . . . . . . . 5-101
To decrease the cruising speed . . . . . . . . . . . . . . . . 5-100
To increase cruise control set speed . . . . . . . . . . . . 5-100
To resume cruising speed at more than approximately
30 km/h (20 mph) . . . . . . . . . . . . . . . . . . . . . . . . 5-102
To set cruise control speed . . . . . . . . . . . . . . . . . . . . 5-99To temporarily accelerate with the cruise control on. 5-101
To turn cruise control off . . . . . . . . . . . . . . . . . . . . 5-102
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . 4-186
IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-186
Defroster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-144
Rear window defroster . . . . . . . . . . . . . . . . . . . . . . 4-144
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-25
Operating door locks from inside the vehicle . . . . . 4-22
Operating door locks from outside the vehicle . . . . 4-21
Driver Attention Warning (DAW). . . . . . . . . . . . . . . . . 5-90
Leading vehicle departure alert . . . . . . . . . . . . . . . . 5-95
Low activity warning . . . . . . . . . . . . . . . . . . . . . . . . 5-90
Dual Clutch Transmission (DCT). . . . . . . . . . . . . . . . . 5-16
Dual clutch transmission operation . . . . . . . . . . . . . 5-16
Good driving practices . . . . . . . . . . . . . . . . . . . . . . . 5-25
Economical operation . . . . . . . . . . . . . . . . . . . . . . . . . 5-142
Emergency starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Before Jump Starting (For Hybrid) . . . . . . . . . . . . . . 6-5
Jump starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
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