2020 HYUNDAI IONIQ heater

7-12
Maintenance
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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 the MAX and the MIN
marks on the side of the coolant
reservoir when the parts in the motor
compartment is cool.
If the coolant level is low, have your
vehicle inspected by an authorized
HYUNDAI dealer. Use only designat-
ed coolant water for electric vehicles,
adding other types of water or
antifreeze can damage the vehicle.The electric motor for the cooling fan
is controlled by coolant temperature,
refrigerant pressure and vehicle
speed. As the coolant temperature
decreases, the electric motor will
automatically shut off. This is a nor-
mal condition.
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Since a specific coolant water is
applied for electric vehicles,
replenishment of other
antifreeze or water may cause
problems to the vehicle.
WARNING
The electric motor for the cool-
ing fan may continue to operate
or start up when the vehicle is
not running and can cause seri-
ous injury. Keep hands, clothing
and tools away from the rotat-
ing fan blades of the cooling
fan.
WARNING

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Maintenance
Fuse NameFuse RatingProtected Component
MODULE510AElectro Chromic Mirror, Audio, Driver IMS Module, Rear Seat Warmer Module, DBL Unit, VESS Unit,
Front Seat Warmer Control Module, Head Lamp LH/RH, Front Air Ventilation Seat Control Module
MODULE410ALane Keeping Assist Unit, Crash Pad Switch, Electric Parking Brake Unit FCA Unit,
Blind-spot Collision Warning (BCW) Radar LH/RH
INTERIOR
LAMP10AFront Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Wireless Charger Unit
A/BAG 15ASRS Control Module, Occupant Detection Sensor
E-SHIFTER110ASBW Switch, Front Console Switch
IG125APCB Block (Fuse - AHB3, EPCU2)
CLUSTER10AInstrument Cluster
MODULE310ABCM, Stop Lamp Switch, Driver Door Module, Passenger Door Module
IG3 210AIPS Control Module, Main Battery Charging Switch, Charge Lamp, PTC Heater,
A/V & Navigation Head Unit, Instrument Cluster, A/C Control Module, Audio
MEMORY27.5AActive Air Flap
A/BAG IND7.5AInstrument Cluster
START7.5AEPCU, Smart Key Control Module
Instrument panel fuse panel

7-46
Maintenance
Fuse NameFuse RatingProtected Component
SUNROOF20ASunroof Motor
P/WDW RH25APower Window (RH) Relay, Passenger Safety Power Window Switch
P/WDW LH25ADriver Safety Power Window Module
PDM27.5ASmart Key Control Module, Start/Stop Button Switch
BRAKE
SWITCH7.5AStop Lamp Switch, Smart Key Control Module
OBC10AOBC
A/CON7.5AA/C Control Module
WASHER15AMultifunctioEt Warmer Control Module, Front Air Ventilation Seat Control Module
S/HEATER
FRT25ACharging Connector Lamp, Quick Charging Connector Lamp
CHARGER10ACCM Unit, Charging Connector Lamp, ICM Relay Box (Charging Connector Lock/Unlock Relay)
P/SEAT DRV30ADriver Seat Manual Switch, Driver IMS Module
AMP30AAMP
Instrument panel fuse panel

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7
Maintenance
Fuse NameFuse RatingProtected Component
MODULE110AData Link Connector, FCA Unit, Driver/Passenger Power Outside Mirror,
Driver/Passenger Smart Key Outside Handle, Driver/Passenger Door Module
DOOR LOCK20ADoor Lock/Unlock Relay, ICM Relay Box (Two Turn Unlcok Relay)
WIPER FRT210AWiper Motor, PCB Block (Front Wiper (Low) Relay) BCM
MODULE67.5ASmart Key Control Module, BCM
S/HEATER RR25ARear Seat Warmer Module
HTD MIRR10ADriver/Passenger Power Outside Mirror, A/C Control Module
RR HTD25ARear Defogger (+) (Upper)
WIPER FRT130AWiper Motor, PCB Block (Front Wiper (Low) Relay), A/C Control Module
Instrument panel fuse panel

7-49
7
Maintenance
Motor compartment fuse panel
Fuse NameFuse RatingProtected Component
MAIN180AEPCU (Low Voltage DC-DC Converter), E/R Junction Block (Fuse - H/LAMP HI,
POWER OUTLET1, AHB2, AHB1)
MDPS80AMDPS Unit
REAR
HEATED150AE/R Junction Block (Rear Defogger Relay)
BLOWER40AE/R Junction Block (Blower Relay)
B+360AIGPM (Fuse - ARISU (4CH), IPS (1CH/2CH))
B+450AIGPM (Fuse - P/WINDOW LH/RH, TAILGATE OPEN, SUNROOF, AMP, CHARGER, OBC,
S/HEATER FRT, P/SEAT DRV)
C/FAN60AE/R Junction Block (Cooling Fan Relay)
B+260AIGPM (Fuse - S/HEATER RR, ARISU (4CH), IPS (2CH))
IG140AE/R Junction Block (Button Start #1 (ACC) Relay, Button Start #2 (IG1) Relay)
IG240AE/R Junction Block (Button Start #2 (IG2) Relay)
E-SHIFTER40AE/R Junction Block (Fuse - E-SHIFTER2, E-SHIFTER Relay)
B+560APCB Block (Fuse - EPCU1, HORN, B/A HORN, BMS, Main Relay)

H5
High Voltage Battery (lithium-
ion polymer)
The charge amount of the high
voltage battery may gradually
decrease when the vehicle is not
driving.
The battery capacity of the high
voltage battery may decrease
when the vehicle is stored in
high/low temperatures.
Distance to empty may vary
depending on the driving condi-
tions, even if the charge amount is
the same. The high voltage battery
may expend more energy when
driving at high speed or uphill.
These actions may reduce the dis-
tance to empty.
The high voltage battery is used
when using the air-conditioner /
heater. This may reduce the dis-
tance to empty. Make sure to set
moderate temperatures when
using the air-conditioner/heater.
Natural degradation may occur
with the high voltage battery
depending on the number of years
the vehicle is used. This may
reduce the distance to empty. When the charge capacity and dis-
tance to empty keep falling, con-
tact an authorized HYUNDAI deal-
er for inspection and maintenance.
If the vehicle will not be in use for
an extended period of time, charge
the high voltage battery once every
three months to prevent it from dis-
charging. Also, if the charge
amount is not enough, immediate-
ly charge to full and store the vehi-
cle.
AC charge is recommended to
keep the high voltage battery in
optimal condition.
If the high voltage battery charge
amount is below 20%, you can
keep the high voltage battery per-
formance in optimal condition if
you charge the high voltage battery
to 100%. (Once a month or more is
recommended.)Make sure to use a designated
charger when charging the
high voltage battery. Using dif-
ferent types of chargers may
have a serious impact on vehi-
cle durability.
Make sure that the high volt-
age battery charger gauge
does not reach ''L (Low)". If the
vehicle is kept at ''L (Low)" for
a long period, it may damage
the high voltage battery and
the high voltage battery may
have to be replaced depending
on the level of degradation.
If the vehicle is in a collision,
contact an authorized HYUNDAI
dealer to inspect whether the
high voltage battery is still con-
nected.
CAUTION

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Energy Information
Select 'EV →Energy Information' on
the screen.
You can check battery information
and energy consumption.
Battery information
You can check the vehicle expected
range, total battery power remaining,
and expected charging time for each
charge type.
The displayed range is calculated
based on the real time energy effi-
ciency while driving. The displayed
range may change as the driving
pattern or conditions change.
Note that the range may be differ-
ent from a given state of charge
(SOC%) depending on drive mode,
drive conditions, and driving pat-
terns.
Energy consumption
You can check the current energy
consumption for each system of the
vehicle.
➀'Driving' shows the total power and
energy consumption of the electric
motor kW usage when driving and
kW storage when regenerative
braking is applied.
➁'Climate' shows the power and
energy consumption which are
used by the heater or air condition-
er.
➂'Electronics' shows the power and
energy consumption which are
used by the vehicle systems
including the cluster, infotainment
system, headlamp, vehicle control
unit, etc.
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H13
This is primarily due to reduced per-
formance of the EV battery when
exposed to cold temperatures.
Some vehicles may come equipped
with Winter mode selectable option.
The Winter mode feature can be
selected in the EV Settings menu.
When selected, Winter mode
enables the use of the EV battery
coolant heater. This mode is recom-
mended to improve EV battery per-
formance in cold climate conditions.
Note that EV range may reduce
when Winter mode is enabled, as
electrical energy is used to maintain
the EV battery temperature.
Winter mode enables operation of
the EV battery coolant heater. While
driving your vehicle, if the battery
temperature is low or the A/C and/or
heater is turned ON, the EV battery
coolant heater will be used.
Note that the EV battery coolant
heater will not be used when the EV
battery SOC is low.
❈This mode is available for the vehi-
cles equipped with the battery
heater.Warning
You can select or deselect the Range
Warning.
- Range Warning: If the destination
set in the navigation cannot be
reached with the remaining EV bat-
tery charge level, a warning mes-
sage is displayed.
EV route
If EV route is selected, EV related
information will show on the route.
You can check the distance the vehi-
cle can be driven with the current EV
battery charge level % along the
route.
An icon is also indicated so the driv-
er is able to search for nearby charg-
ing stations.
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