2021 KIA NIRO HYBRID EV radiator

Features of your vehicle
36
4
Opening the fuel filler door
The fuel filler door must be opened
from inside the vehicle by pressing
the fuel filler door opener button.
If the fuel filler door does not open
because ice has formed around it,
tap lightly or push on the lid to break
the ice and release the lid. Do not pry
on the lid. If necessary, spray around
the lid with an approved de-icer fluid
(do not use radiator anti-freeze) or
move the vehicle to a warm place
and allow the ice to melt. 1. Stop the engine.
2. To open the fuel filler door, push
the fuel filler door opener button.
3. Pull open the fuel filler door (1).
4. To remove the cap, turn the fuel filler cap (2) counterclockwise.
5. Refuel as needed.
FUEL FILLER DOOR (HYBRID)
ODEP049017L
ODEP049585L
WARNING
Before refueling, be sure to
check what type of fuel is used
for your vehicle.
If you put diesel fuel into a
gasoline-powered vehicle or
gasoline into a diesel-powered
vehicle, it may affect the fuel
system and cause serious dam-
age to the vehicle.

Features of your vehicle
38
4
Opening the fuel filler door
The fuel filler door must be opened
from inside the vehicle by pushing
the fuel filler door button.
✽ ✽
NOTICE
If the fuel filler door does not open
because ice has formed around it,
tap lightly or push on the lid to break
the ice and release the lid. Do not pry
on the lid. If necessary, spray around
the lid with an approved de-icer fluid
(do not use radiator anti-freeze) or
move the vehicle to a warm place
and allow the ice to melt.
Wait until the fuel tank is depressur-
ized. The message is displayed when
the fuel filler door opens after the fuel
tank is depressurized.
✽ ✽NOTICE
• It may take up to 20 seconds to
open fuel filler door.
• When the fuel filler door is frozen and does not open after 20 seconds
at freezing temperature, slightly
tap the fuel filler door and then
attempt to open it.
1. Stop the engine.
2. To open the fuel filler door, push
the fuel filler door opener button.
3. Pull open the fuel filler door (1).
4. To remove the cap, turn the fuel filler cap (2) counterclockwise.
5. Refuel as needed.
FUEL FILLER DOOR (PLUG-IN HYBRID)
ODEP049523L
OJFHP048601L
OJFHP048602LODEP049585L

Features of your vehicle
62 4
Outside rearview mirror
Be sure to adjust the mirror angles
before driving.
Your vehicle is equipped with both
left-hand and right-hand outside
rearview mirrors. The mirrors can be
adjusted remotely with the remote
switch. The mirror heads can be fold-
ed back to prevent damage during an
automatic vehicle wash or when
passing through a narrow street.
The right outside rearview mirror is
convex. Objects seen in the mirror
are closer than they appear.
Use your interior rearview mirror or
direct observation to determine the
actual distance of following vehicles
when changing lanes.If the mirror is jammed with ice, do
not adjust the mirror by force. Use an
approved spray de-icer (not radiator
antifreeze) to release the frozen
mechanism or move the vehicle to a
warm place and allow the ice to melt.
Adjusting outside rearview mirror
The electric remote control mirror
switch allows you to adjust the posi-
tion of the left and right outside
rearview mirrors. To adjust the posi-
tion of either mirror, press the R or L
button (1) to select the right side mir-
ror or the left side mirror, then press a
corresponding point “ ” (2) on the
mirror adjustment control to position
the selected mirror up, down, left or
right.
After adjustment, press the R or L
button again to prevent the inadver-
tent adjustment.
WARNING- Mirror
adjustment
Do not adjust or fold the outside
rearview mirrors while the vehi-
cle is moving. This could result
in loss of control.
CAUTION - Rearview
mirror
Do not scrape ice off the mirror
face; this may damage the sur-
face of the glass. If ice should
restrict the movement of the mir-
ror, do not force the mirror for
adjustment. To remove ice, use a
deicer spray, a sponge or soft
cloth with very warm water.
ODEP049028

611
What to do in an emergency
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a
loss of power, or hear loud pinging or
knocking, the engine is probably too
hot. If this happens, you should:
1. Turn on the emergency warning
flasher and stop in a safe place.
Move the shift lever to P (Park)
and engage the parking brake.
2. If hot steam does not come out
from the engine room, carefully
open the engine room and check
whether the water pump connec-
tor is properly engaged. If the con-
nector is not properly engaged,
stop the engine immediately and
properly engage the connector.
Then, turn the engine on.
3. Turn on the air conditioner.4. If the “HEV Warning” light turns on
in the driver instrument cluster, or
engine coolant or hot steam emits
from the engine coolant filler, stop
the engine immediately. Then, call
the nearest authorized Kia dealer
for assistance. If the “Engine
Warning” light remains illuminated
or the engine coolant is not flowing
out, keep the engine running.
Open the engine hood for ventila-
tion to help cool down the engine.5. Check whether the engine coolant
temperature is low enough by
checking its temperature. If the
engine coolant level is low, please
check the connecting parts
between the radiator hose, heater
hose, and water pump for any signs
of leakage. When there is no sign of
leakage, please refill the engine
coolant. If causes and signs of
engine overheating such as warn-
ing light illumination, engine coolant
leakage, or cooling fan malfunction
are found, stop the vehicle the ear-
liest. Then, call the nearest author-
ized Kia dealer for assistance.
WARNING- Under the
Hood
While the engine is running,
keep hair, hands and clothing
away from moving parts such
as the fan and drive belts to pre-
vent injury.
WARNING- Radiator Cap
Do not remove the
radiator cap when the
engine is hot. This
can allow coolant to
blow out of the open-
ing and cause seri-
ous burns.

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
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.
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.

719
Maintenance
ENGINE OIL
Checking the engine oil level
1. Be sure the vehicle is on level
ground.
2. Start the engine and allow it to
reach normal operating tempera-
ture.
3. Turn the engine off and wait for a
few minutes (about 5 minutes) for
the oil to return to the oil pan.
4. Pull the dipstick out, wipe it clean,
and reinsert it fully.5. Pull the dipstick out again and
check the level. The level should
be between F and L.
If it is near or at L, add enough oil to
bring the level to F.Do not overfill.
Use a funnel to help prevent oil
from being spilled on engine com-
ponents.
Use only the specified engine oil.
(Refer to “Recommended lubricants
and capacities” in chapter 8.)
CAUTION - Replacing
engine oil
Do not overfill the engine oil. It
may damage the engine.
WARNING- Radiator hose
Be very careful not to touch the
radiator hose when checking or
adding engine oil as it may be
hot enough to burn you.
ODE076002
■Gasoline Engine (Kappa 1.6L GDI)
ODE076003
■Gasoline Engine (Kappa 1.6L GDI)

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.