2021 KIA NIRO PHEV engine coolant

Driving your vehicle
192 5
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.
Don’t let your parking brake
freeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you put the gear shift lever in P (Park,
Dual clutch transmission) and block
the rear wheels so the vehicle cannot
roll. Then release the parking brake.
Don't let ice and snow accu-
mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
vehicle to be sure the movement of
the front wheels and the steering
components are not obstructed.
Carry emergency equipment
Depending on the severity of the
weather, you should carry appropri-
ate emergency equipment. Some of
the items you may want to carry
include tow straps or chains, flash-
light, emergency flares, sand, shov-
el, jumper cables, window scraper,
gloves, ground cloth, coveralls, blan-
ket, etc.
TRAILER TOWING
We do not recommend using this
vehicle for trailer towing.

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.

What to do in an emergency
12 6
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been lost,
carefully add coolant to the reser-
voir to bring the fluid level in the
reservoir up to the halfway mark.
7. Proceed with caution, keeping
alert for further signs of overheat-
ing. If over heating happens again,
call the nearest authorized Kia
dealer for assistance.✽ ✽
NOTICE
Serious loss of coolant indicates
there is a leak in the cooling system
and should be checked as soon as
possible by an authorized Kia dealer.
CAUTION
When the engine overheats from
low engine coolant, suddenly
adding engine coolant may
cause cracks in the engine. To
prevent damage, add engine
coolant slowly in small quantities

Maintenance
7
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-5
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-6
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
• Owner maintenance schedule . . . . . . . . . . . . . . . . . . . 7-7
Scheduled maintenance service. . . . . . . . . . . . . . . . 7-9
Explanation of scheduled maintenance items . . . 7-15
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 7-18
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-19
• Changing the engine oil and filter . . . . . . . . . . . . . . . 7-20
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 7-21
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 7-26
Engine clutch actuator fluid . . . . . . . . . . . . . . . . . 7-28
• Checking the engine clutch actuator fluid level . . . . 7-28
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-30
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-31
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Climate control air filter . . . . . . . . . . . . . . . . . . . . 7-34
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Battery (Plug-in Hybrid) . . . . . . . . . . . . . . . . . . . . 7-39
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 7-39
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 7-40
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42
• Recommended cold tire inflation pressures . . . . . . . 7-42
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 7-43
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 7-45
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-47

Maintenance
4 7
ENGINE COMPARTMENT
ODEP079115
■
■(Gasoline) 1.6 GDi
❈The actual engine room in the vehicle may differ from the illustration.1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil dipstick
4. Brake fluid reservoir
5. Inverter coolant reservoir
6. Fuse box
7. Engine clutch actuator reservoir tank
8. Air cleaner
9. Windshield washer fluid reservoir

77
Maintenance
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized Kia dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolant
reservoir.
Check the windshield washer fluid
level.
Look for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound of
the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering
wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly
turns slightly or “pulls” to one side
when traveling on smooth, level
road.
When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
Check the dual clutch transmission
P (Park) function.
Check the parking brake.
Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING- Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.
WARNING
When you open the engine
hood, turn the Hybrid system
off. If not, it may result in death
or serious injury because of the
high voltage flow.

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.

711
Maintenance
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Vacuum hoseIIIIIIIIIIIIIII
Coolant (Engine)At first, replace at 120,000 miles (192,000 km) or 10 years,
after that, replace every 30,000 miles (48,000 km) or 24 months
Battery conditionIIIIIIIIIIIIIII
Brake lines, hoses and connectionsIIIIIIIIIIIIIII
Brake discs and padsIIIIIIIIIIIIIII
Steering gear rack, linkage and bootsIIIIIIIIIIIIIII
Driveshaft and bootsIIIIIIIIIIIIIII
Suspension ball jointsIIIIIIIIIIIIIII
Air conditioner compressor/refrigerantIIIIIIIIIIIIIII
Exhaust systemIIIIIIIIIIIIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
Normal Maintenance Schedule - Non Turbo Models(CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.