coolant KIA NIRO 2021 Owner's Manual

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

723
Maintenance
Recommended coolant
When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol
with phosphate based coolant to
prevent corrosion and freezing.
DO NOT USE alcohol or methanol
coolant or mix them with the spec-
ified coolant.
Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze. This would
reduce the effectiveness of the
solution.For mixture percentage, refer to the
following table.
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
5°F (-15°C)35 65
-13°F (-25°C)40 60
-31°F (-35°C)50 50
-49°F (-45°C)60 40ODE076006
ODEP079004
■Inverter coolant reservoir cap
■Engine coolant reservoir cap

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.
OQL075072
■Engine room front view
ODE076007
■Engine room rear view

725
Maintenance
Changing the coolant
Have the coolant changed by an
authorized Kia dealer according to
the Maintenance Schedule at the
beginning of this chapter.
CAUTION
Put a thick cloth or fabric
around the radiator cap before
refilling the coolant in order to
prevent the coolant from over-
flowing into engine parts such
as the generator.

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

Maintenance
52 7
Cold Tire Pressure:The amount of
air pressure in a tire, measured in
kilopascals (kPa) or pounds per
square inch (psi) before a tire has
built up heat from driving.
Curb Weight:This means the weight
of a motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings:A code molded into
the sidewall of a tire signifying that
the tire is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. The DOT
code includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.GVWR:Gross Vehicle Weight Rating
GAWR FRT:Gross Axle Weight
Rating for the Front Axle.
GAWR RR:Gross Axle Weight
Rating for the Rear axle.
Intended Outboard Sidewall:The
side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa):The metric unit for
air pressure.
Light truck(LT) tire:A tire designat-
ed by its manufacturer as primarily
intended for use on lightweight trucks
or multipurpose passenger vehicles.
Load Index:An assigned number
ranging from 1 to 279 that corre-
sponds to the load carrying capacity
of a tire.
Load ratings:The maximum load
that a tire is rated to carry for a given
inflation pressure.Maximum Inflation Pressure:The
maximum air pressure to which a
cold tire may be inflated. The maxi-
mum air pressure is molded onto the
sidewall.
Maximum Load Rating:The load
rating for a tire at the maximum per-
missible inflation pressure for that
tire.
Maximum Loaded Vehicle Weight:
The sum of curb weight; accessory
weight; vehicle capacity weight; and
production options weight.
Normal Occupant Weight:The
number of occupants a vehicle is
designed to seat multiplied by 150
lbs. (68kg).

7115
Maintenance
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

Specifications, Consumer information, Reporting safety defects
8 8
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
*1: Refer to the recommended SAE viscosity numbers on the next page.
*2: To maintain your vehicle’s best brake and ABS/ESC performance, use Kia genuine brake fluid as in the specification.
Lubricant VolumeClassification
Engine oil *1
(drain and refill)
Recommends
4.01 US qt. (3.8 liter)SAE 0W-20, API Latest(ILSAC Latest) or ACEA C5
Dual Clutch Transmission Fluid1.69 ~ 1.79 US qt.
(1.6 ~ 1.7 liter)(Kia Genuine oil HK D DCTF TGO-10 (SK), SPIRAX S6 GHDE
70W DCTF (H.K.SHELL), 7 DCTF HKM (S-OIL))
Coolant6.31 US qt. (5.98 liter)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant2.56 US qt. (2.43 liter)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake fluid *20.425 ± 0.025 US qt.
(402.6 ± 24.4 cc)SAE J1704 DOT-4 LV, ISO4925 CLASS-6, FMVSS116 DOT-4
Engine clutch actuator fluid0.105 ± 0.021 US qt.
(100 ± 20 cc)DOT 3 or DOT 4
FuelHEV47.5 US qt. (45 liter)Refer to Fuel requirements in chapter 1.PHEV45.4 US qt. (43 liter)

I3
Index
Parking brake – Foot type . . . . . . . . . . . . . . . . . . . . 5-33
Power brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Vehicle Stability Management (VSM) . . . . . . . . . . . 5-51
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
California perchlorate notice . . . . . . . . . . . . . . . . . . . 7-117
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
Consumer assistance (U.S. only) . . . . . . . . . . . . . . . . . 8-13
Emergency roadside assistance . . . . . . . . . . . . . . . . 8-13
Registering your vehicle in a foreign country . . . . . 8-15
Toll free consumer assistance . . . . . . . . . . . . . . . . . 8-13
Trip interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Checking the coolant level . . . . . . . . . . . . . . . . . . . . 7-21
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Inverter coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . 7-23Cruise Control (CC) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-114
Driving Assist button . . . . . . . . . . . . . . . . . . . . . . . 5-115
To cancel Cruise Control, do one of the following. . 5-117
To decrease the cruising speed . . . . . . . . . . . . . . . . 5-116
To increase Cruise Control set speed . . . . . . . . . . . 5-116
To resume cruising speed at more than approximately
20 mph (30 km/h). . . . . . . . . . . . . . . . . . . . . . . . . 5-118
To set Cruise Control speed . . . . . . . . . . . . . . . . . . 5-115
To temporarily accelerate with Cruise Control on . 5-117
To turn Cruise Control off, do one of the following . 5-118
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . 4-182
FCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . 5-173
Defroster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140
Rear window defroster . . . . . . . . . . . . . . . . . . . . . . 4-140
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-26
Operating door locks from inside the vehicle . . . . . 4-23
Operating door locks from outside the vehicle . . . . 4-22
Rear Occupant Alert (ROA) system. . . . . . . . . . . . . 4-26
Driver Attention Warning (DAW). . . . . . . . . . . . . . . . 5-107
Leading Vehicle Departure Alert . . . . . . . . . . . . . . 5-112
Low Activity Warning . . . . . . . . . . . . . . . . . . . . . . 5-107
C
D

I11
Index
Vehicle load limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-193
Certification label . . . . . . . . . . . . . . . . . . . . . . . . . . 5-196
Tire and loading information label. . . . . . . . . . . . . 5-193
Vehicle modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Vehicle weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-197
Base curb weight . . . . . . . . . . . . . . . . . . . . . . . . . . 5-197
Cargo weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-197
GAW (Gross axle weight) . . . . . . . . . . . . . . . . . . . 5-197
GAWR (Gross axle weight rating) . . . . . . . . . . . . . 5-197
GVW (Gross vehicle weight). . . . . . . . . . . . . . . . . 5-197
GVWR (Gross vehicle weight rating) . . . . . . . . . . 5-197
Vehicle curb weight . . . . . . . . . . . . . . . . . . . . . . . . 5-197
Warning and indicator lights. . . . . . . . . . . . . . . . . . . . 4-106
Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-115
Warning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-106
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Checking the washer fluid level . . . . . . . . . . . . . . . . 7-30
Welcome system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-139
Headlight (Headlamp) escort function . . . . . . . . . . 4-139
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-139
Pocket lamp (if equipped) . . . . . . . . . . . . . . . . . . . 4-139
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Power windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Windshield defrosting and defogging. . . . . . . . . . . . . 4-157
Automatic climate control system . . . . . . . . . . . . . 4-157Defogging logic . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-158
Winter driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-189
Carry emergency equipment . . . . . . . . . . . . . . . . . 5-192
Change to "winter weight" oil if necessary . . . . . . 5-191
Check battery and cables . . . . . . . . . . . . . . . . . . . . 5-191
Check spark plugs and ignition system . . . . . . . . . 5-191
Don’t let your parking brake freeze . . . . . . . . . . . . 5-192
Don't let ice and snow accumulate underneath . . . 5-192
Snowy or icy conditions . . . . . . . . . . . . . . . . . . . . . 5-189
To keep locks from freezing. . . . . . . . . . . . . . . . . . 5-192
Use approved window washer anti-freeze
in system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-192
Use high quality ethylene glycol coolant. . . . . . . . 5-191
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36
Wipers and washers . . . . . . . . . . . . . . . . . . . . . . . . . . 4-132
Front windshield washers. . . . . . . . . . . . . . . . . . . . 4-133
Rear window wiper and washer switch . . . . . . . . . 4-134
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . 4-132
W