2021 HYUNDAI IONIQ ELECTRIC relay

3-16
Convenient features of your vehicleS
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Electric Power Steering (EPS)
The system assists you with steering
the vehicle. If the vehicle is turned off
or if the power steering system
becomes inoperative, you may still
steer the vehicle, but it will require
increased steering effort.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the system
checked by an authorized HYUNDAI
dealer. Information
The following symptoms may occur
during normal vehicle operation:
 The steering effort may be high immediately after placing the
POWER button in the ON position.
This happens as the system per-
forms the EPS system diagnostics.
When the diagnostics is completed,
the steering wheel will return to its
normal condition.
 A click noise may be heard from the EPS relay after the POWER button
is in the ON or OFF position.
 Motor noise may be heard when the vehicle is at a stop or at a low driv-
ing speed.
 When you operate the steering wheel in low temperature, abnormal
noise may occur. If temperature
rises, the noise will disappear. This
is a normal condition.  When an error is detected from the
EPS, the assistant function of steer-
ing effort will not be activated in
order to prevent fatal accidents.
Instrument cluster warning lights
may be on or the steering effort may
be high. When the following symp-
toms occur, immediately drive the
vehicle to a safe area and check it.
i
If the Electric Power Steering System does not operate nor-
mally, the warning light ( ) willilluminate on the instrument
cluster. You may steer the vehi-
cle, but it will require increased
steering efforts. Take your vehi-
cle to an authorized HYUNDAI
dealer and have the system
checked as soon as possible.
CAUTION

7
Maintenance
7
Maintenance
Motor compartment .............................................7-3
Maintenance services ...........................................7-4Owner's Responsibility .....................................................7-4
Owner Maintenance Precautions..................................7-4
Owner maintenance ...............................................7-5 Owner Maintenance Schedule .......................................7-6
Scheduled maintenance services.........................7-7
Explanation of scheduled maintenance items .7-11Coolant...................................................................7-12
Brake fluid ............................................................7-13 Checking the Brake Fluid Level ...................................7-13
Washer fluid .........................................................7-14 Checking the Washer Fluid Level................................7-14
Climate control air filter .....................................7-15 Filter Inspection ...............................................................7-15
Wiper blades .........................................................7-17 Blade Inspection ..............................................................7-17
Blade Replacement .........................................................7-17
12V Battery ...........................................................7-20 For Best Battery Service .............................................7-21
Battery Recharging ........................................................7-21
Reset Features.................................................................7-22 Tires and wheels ..................................................7-23
Tire Care ............................................................................7-23
Recommended Cold Tire Inflation Pressures ...........7-24
Check Tire Inflation Pressure ......................................7-25
Tire Rotation ...................................................................7-26
Wheel Alignment and Tire Balance ............................7-27
Tire Replacement ............................................................7-27
Wheel Replacement ........................................................7-28
Tire Traction ....................................................................7-28
Tire Maintenance ............................................................7-28
Tire Sidewall Labeling ....................................................7-28
Tire Terminology and Definitions ..............................7-32
All Season Tires ...............................................................7-36
Summer Tires ...................................................................7-36
Snow Tires ........................................................................7-36
Radial-Ply Tires ...............................................................7-36
Low Aspect Ratio Tires ................................................7-37
Fuses ......................................................................7-39 Instrument Panel Fuse Replacement .......................7-40
Motor Compartment Panel Fuse Replacement ........7-41
Fuse/Relay Panel Description ......................................7-43
7

7-43
7
Maintenance
Fuse/Relay Panel Description
Instrument panel fuse panel
Inside the fuse/relay box cover, you
can find the fuse/relay label describ-
ing fuse/relay name and capacity.Information
Not all fuse panel descriptions in this
manual may be applicable to your
vehicle; the information is accurate at
the time of printing. When you inspect
the fuse box on your vehicle, refer to
the fuse box label.
i
OAEE079014
OAEE076053N

7-45
7
Maintenance
Fuse NameFuse RatingProtected Component
MODULE210AE/R Junction Block (Power Outlet Relay), Wireless Charger Unit, SBW Switch, BCM, USB Charging,
Smart Key Control Module, Audio, A/V & Navigation Head Unit, Power Outside Mirror Switch, AMP
PDM37.5ASmart Key Control Module
MEMORY110AAuto Light & Photo Sensor, Driver IMS Module, BCM, A/C Control Module, Instrument Cluster,
Passenger Door Module, Driver Door Module, Electro Chromic Mirror Relay Box
(Outside Mirror Folding/Unfolding Relay)
MULTIMEDIA10AA/V & Navigation Head Unit, Audio
E-SHIFTER210ASCU
IG3 310ACCM Unit
IG3 120AICM Relay Box
MDPS7.5AMDPS Unit
T/GATE10ATail Gate Relay, Main Battery Charging Switch, Quick Charging Connector Door Lock/Unlock Actuator
PDM115ASmart Key Control Module
MODULE77.5AFront Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Rear Seat Warmer Module
HTD STRG15ABCM
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

7-47
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

7-48
Maintenance
Motor compartment fuse panel
Inside the fuse/relay box cover, you
can find the fuse/relay label describ-
ing fuse/relay name and capacity.Information
Not all fuse panel descriptions in this
manual may be applicable to your
vehicle; the information is accurate at
the time of printing. When you inspect
the fuse panel in your vehicle, refer to
the fuse panel label.
i
OAEE076016
OAEE076054N

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)