2019 KIA NIRO HYBRID EV cooling

Maintenance
22
8
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.
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.
ODE076005ODE076053
■Hybrid
ODEP077053
■Plug-in Hybrid

823
Maintenance
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 onlydeionized 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

873
Maintenance
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

875
Maintenance
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)

877
Maintenance
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

879
Maintenance
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)

881
Maintenance
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

Maintenance
82
8
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