engine coolant KIA NIRO PHEV 2021 Owner's Manual

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.

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
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