2018 KIA NIRO PLUG-IN HYBRID cooling

Maintenance
30
8
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.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
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C)35 65
-13°F (-25°C)4060
-31°F (-35°C)5050
-49°F (-45°C)6040

Maintenance
80
8
Engine room compartment fuse panel (Hybrid)
Fuse NameFuse ratingCircuit Protected
MULTI FUSE
B+ 560AFuse - BATTERY C/FAN, HORN, B/ALARM HORN, ECU2, Engine Control Relay
B+ 260AInstrument Panel Junction Block (Fuse - S/HEATER (REAR))
B+ 360AInstrument Panel Junction Block
B+ 450AInstrument Panel Junction Block (Fuse - BATTERY MANAGEMENT, P/WINDOW (LH), P/WIN-
DOW (RH), TAIL GATE OPEN, SUNROOF, AMP, S/HEATER (FRT), P/SEAT (DRV))
COOLING FAN60ACooling Fan Relay
REAR HEATED50ARear Heated Relay
BLOWER40ABlower Relay
IG 140A[Without Smart Key] Ignition Switch, [With Smart Key] PDM1 (ACC) Relay, PDM2 (IG1) Relay
IG 240A[Without Smart Key] Ignition Switch, [With Smart Key] PDM3 (IG2) Relay
MDPS80AMDPS (Motor Driven Power Steering) Unit
PTC
HEATER 150APTC Heater 1 Relay
PTC
HEATER 250APTC Heater 2 Relay
CLUTCH
ACTUATOR40AClutch Actuator (HEV)
MAIN150AFuse - POWER OUTLET1, H/LAMP HI, INVERTER, ACTIVE HYDRAULIC BOOSTER1,
ACTIVE HYDRAULIC BOOSTER2, WIPER RR, Low Voltage DC-DC Converter

Maintenance
82
8
Fuse NameFuse ratingCircuit Protected
FUSE
ACTIVE
HYDRAULIC BOOTER 230AIntegrated Brake Actuation Unit
INVERTER30AAC Inverter Module
POWER
OUTLET 140APower Outlet Relay
B/UP LAMP10AElectro Chromic Mirror, Back-Up Lamp LH/RH
ECU 310AECM (Engine Control Module)
HPCU 215AHPCU (Hybrid Power Control Unit), Clutch Actuator (HEV)
ACTIVE
HYDRAULIC BOOTER 310AIntegrated Brake Actuation Unit, Multipurpose Check Connector
DCT 415ADCT (Dual clutch transmission) Shift Lever, TCM (Transmission Control Module), Inhibitor
Switch
SENSOR 310AFuel Pump Relay, Oil Control Valve #1/#2 (Intake/Exhaust), Camshaft Position Sensor #1/#2
(Intake/Exhaust)
BATTERY C/FAN15ABattery C/Fan Relay
HORN20AHorn Relay
SENSOR 210APurge Control Solenoid Valve, Cooling Fan Relay, Canister Close Valve, Mass Air Flow Sensor
ECU 120AECM (Engine Control Module)

Maintenance
84
8
Engine room compartment fuse panel (Plug-in Hybrid)
Fuse NameFuse ratingCircuit Protected
MULTI FUSE
B+ 560AFuse - BATTERY C/FAN, HORN, B/ALARM HORN, ECU2, Engine Control Relay
B+ 260AInstrument Panel Junction Block (Fuse - S/HEATER (REAR))
B+ 360AInstrument Panel Junction Block
B+ 450AInstrument Panel Junction Block (Fuse - BATTERY MANAGEMENT, P/WINDOW (LH), P/WIN-
DOW (RH), TAIL GATE OPEN, SUNROOF, AMP, S/HEATER (FRT), P/SEAT (DRV), IG3 1,
OBC, AMS)
COOLING FAN60ACooling Fan Relay
REAR HEATED50ARear Heated Relay
BLOWER40ABlower Relay
IG 140A[Without Smart Key] Ignition Switch, [With Smart Key] PDM1 (ACC) Relay, PDM2 (IG1) Relay
IG 240A[Without Smart Key] Ignition Switch, [With Smart Key] PDM3 (IG2) Relay
MDPS80AMDPS (Motor Driven Power Steering) Unit
PTC
HEATER 150APTC Heater 1 Relay
PTC
HEATER 250APTC Heater 2 Relay
CLUTCH
ACTUATOR40AClutch Actuator (PHEV)
MAIN150AFuse - POWER OUTLET1, H/LAMP HI, INVERTER, ACTIVE HYDRAULIC BOOSTER1,
ACTIVE HYDRAULIC BOOSTER2, WIPER RR, Low Voltage DC-DC Converter

Maintenance
86
8
Fuse NameFuse ratingCircuit Protected
FUSE
ACTIVE
HYDRAULIC BOOTER 230AIntegrated Brake Actuation Unit
INVERTER30AAC Inverter Module
POWER
OUTLET 140APower Outlet Relay
B/UP LAMP10AElectro Chromic Mirror, Back-Up Lamp LH/RH
ECU 310AECM (Engine Control Module)
HPCU 215AHPCU (Hybrid Power Control Unit), Clutch Actuator (PHEV)
ACTIVE
HYDRAULIC BOOTER 310AIntegrated Brake Actuation Unit, Multipurpose Check Connector
DCT 415ADCT(Dual clutch transmission) Shift Lever, TCM (Transmission Control Module), Inhibitor
Switch
SENSOR 310AFuel Pump Relay, Oil Control Valve #1/#2 (Intake/Exhaust), Camshaft Position Sensor #1/#2
(Intake/Exhaust)
BATTERY C/FAN15ABattery C/Fan Relay
HORN20AHorn Relay
SENSOR 210APurge Control Solenoid Valve, Cooling Fan Relay, Canister Close Valve, Mass Air Flow Sensor
ECU 120AECM (Engine Control Module)

Maintenance
88
8
Relay (Hybrid)
Relay NameType
PTC Heater #2 RelayMICRO
PTC Heater #1 RelayMICRO
PDM2 (IG1) RelayMICRO
Battery C/FAN RelayMICRO
Rear Wiper RelayMICRO
PDM3 (IG2) RelayMICRO
Fuel Pump RelayMICRO
PDM1 (ACC) RelayMICRO
Cooling Fan RelayMINI
Rear Heated RelayMINI
Blower RelayMICRO
H/LAMP HI RELAYMICRO
Power Outlet RelayMICRO

889
Maintenance
Relay (Plug-in Hybrid)
Relay NameType
PTC Heater #2 RelayMICRO
PTC Heater #1 RelayMICRO
PDM2 (IG1) RelayMICRO
Battery C/FAN RelayMICRO
Rear Wiper RelayMICRO
PDM3 (IG2) RelayMICRO
Fuel Pump RelayMICRO
PDM1 (ACC) RelayMICRO
Cooling Fan RelayMINI
Rear Heated RelayMINI
Blower RelayMICRO
H/LAMP HI RELAYMICRO
Power Outlet RelayMICRO

Index
4I
Clean air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
148
Climate control air filter . . . . . . . . . . . . . . . . . . . . . . . . 8-40Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Filter replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Clothes hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-161
Combined instrument, see instrument cluster . . . . . . . 4-53
Consumer assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 8-28 Checking the coolant level . . . . . . . . . . . . . . . . . . . . 8-28
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Inverter coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . 8-30
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Cooling fluid, see engine coolant . . . . . . . . . . . . . . . . . 8-28
Crankcase emission control system . . . . . . . . . . . . . . 8-113
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47 To set cruise control speed . . . . . . . . . . . . . . . . . . . . 6-48
To increase cruise control set speed . . . . . . . . . . . . . 6-48
To decrease the cruising speed . . . . . . . . . . . . . . . . . 6-49
To temporarily accelerate with the cruise control on6-49
To cancel cruise control . . . . . . . . . . . . . . . . . . . . . . 6-49
To resume cruising speed at more than approximately 20mph (30 km/h) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50
To turn cruise control off . . . . . . . . . . . . . . . . . . . . . 6-50
Cup holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152
Curtain air bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62 Dashboard illumination, see instrument panel
illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Dashboard, see instrument cluster . . . . . . . . . . . . . . . . 4-53
Day/night rearview mirror . . . . . . . . . . . . . . . . . . . . . . 4-48
Daytime running light. . . . . . . . . . . . . . . . . . . . . . . . . 4-116
Defogging (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-145
Defroster (Rear window) . . . . . . . . . . . . . . . . . . . . . . 4-129
Defrosting (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-145
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-\
2
Disarmed stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Display illumination, see instrument panel illumination . 4-56
Displays, see instrument cluster . . . . . . . . . . . . . . . . . . 4-53
Distance to empty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
20 from outside the vehicle . . . . . . . . . . . . . . . . . . . . . . 4-20
from inside the vehicle . . . . . . . . . . . . . . . . . . . . . . . 4-21
Central door lock switch . . . . . . . . . . . . . . . . . . . . . 4-22
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-23
Drinks holders, see cup holders . . . . . . . . . . . . . . . . . 4-152
Driver Attention Alert (DAA) . . . . . . . . . . . . . . . . . . . . 6-82 System setting and activation . . . . . . . . . . . . . . . . . . 6-82
Resetting the system. . . . . . . . . . . . . . . . . . . . . . . . . 6-84
System disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
System malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
Driver position memory system . . . . . . . . . . . . . . . . . . . 3-9D