2020 HYUNDAI IONIQ warning lights

5-40
Driving your vehicle
ESC OFF condition
To cancel ESC operation :

Press the ESC OFF button briefly.
The ESC OFF indicator light And/or
message "Traction Control disabled"
will illuminate. In this state, the trac-
tion control function of ESC is dis-
abled, but the brake control function
of ESC still operates.
Press and hold the ESC OFF button
continuously for more than 3 sec-
onds. The ESC OFF indicator light
And/or message "Traction & Stability
Control disabled" illuminates and a
warning chime sounds. In this state,
both the traction control function of
ESC and the brake control function
of ESC are disabled.
If the POWER button is placed to the
OFF position when ESC is off, ESC
remains off. Upon restarting the vehi-
cle, the ESC will automatically turn
on again.
Indicator lights
When the POWER button is pressed
to the ON position, the ESC indicator
light illuminates, then goes off if the
ESC system is operating normally.
The ESC indicator light blinks when-
ever the ESC is operating.
If the ESC indicator light stays on,
your vehicle may have a malfunction
with the ESC system. When this
warning light illuminates, have the
vehicle checked by an authorized
HYUNDAI dealer as soon as possi-
ble.
The ESC OFF indicator light comes
on when the ESC is turned off with
the button.
OAEPH059017L
OAEPH059019L
■ESC indicator light (blinks)
■ ESC OFF indicator light (comes on)

5-41
Driving your vehicle
5Driving with wheels and tires with
different sizes may cause the ESC
system to malfunction. Before
replacing tires, make sure all four
tires and wheels are the same
size. Never drive the vehicle with
different sized wheels and tires
installed.
ESC OFF usage
When Driving
The ESC OFF mode should only be
used briefly to help free the vehicle if
stuck in snow or mud, by temporarily
stopping operation of the ESC, to
maintain wheel torque.
To turn ESC off while driving, press
the ESC OFF button while driving on
a flat road surface. Do not allow wheel(s) of one
axle to spin excessively while
the ESC, ABS, and parking brake
warning lights are displayed.
The repairs would not be cov-
ered by the vehicle warranty.
Reduce vehicle power and do
not spin the wheel(s) excessive-
ly while these lights are dis-
played.
When operating the vehicle on a
dynamometer, make sure the
ESC is turned off (ESC OFF light
illuminated).
Information
Turning the ESC off does not affect
ABS or standard brake system opera-
tion.
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NOTICE
NOTICE
When the ESC is blinking, this
indicates the ESC is active:
Drive slowly and NEVER attempt
to accelerate. NEVER turn the
ESC off while the ESC indicator
light is blinking or you may lose
control of the vehicle resulting in
an accident.
WARNING

6-2
The hazard warning flasher serves
as a warning to other drivers to exer-
cise extreme caution when approach-
ing, overtaking, or passing your vehi-
cle.
It should be used whenever emer-
gency repairs are being made or
when the vehicle is stopped near the
edge of a roadway.To turn the hazard warning flasher
on or off, press the hazard warning
flasher button. The button is located
in the center fascia panel. Both the
left and right turn signal lights will
flash simultaneously.
• The hazard warning flasher oper-
ates whether your vehicle is run-
ning or not.
The turn signals do not work when
the hazard flasher is on.
If the Vehicle Stalls While
Driving
Reduce your speed gradually,
keeping a straight line. Move cau-
tiously off the road to a safe place.
Turn on your hazard warning flash-
er.
Try to start the vehicle again. If
your vehicle will not start, contact
an authorized HYUNDAI dealer or
seek other qualified assistance.
If the Vehicle Stalls at a
Crossroad or Crossing
If the vehicle stalls at a crossroad or
crossing, if safe to do so, shift to the
N (Neutral) position and then push
the vehicle to a safe location.
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What to do in an emergency
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OAEE049016

7-6
Maintenance
Owner Maintenance Schedule
When you stop for fuel:
• Check coolant level in the coolant
reservoir.
Check the windshield washer fluid
level.
Check for low or under-inflated
tires.
While operating your vehicle:
Check for vibrations in the steering
wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly
turns slightly or "pulls" to one side
when traveling on smooth, level
road.
When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or "hard-to-push" brake pedal.
If any slipping or changes in the
operation of your reduction gear
occurs, check the reduction gear
fluid level.
Check the reduction gear P (Park)
function.
Check the parking brake.
Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
Check coolant level in the coolant
reservoir.
Check the operation of all exterior
lights, including the brake lights,
turn signals and hazard warning
flashers.
Check the inflation pressures of all
tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
Be careful when checking your
coolant level when the parts in
the motor compartment are hot.
This may result in coolant being
blown out of the opening and
cause serious burns and other
injuries.
WARNING

7-39
7
Maintenance
F FU
US
SE
ES
S
A vehicle's electrical system is pro-
tected from electrical overload dam-
age by fuses.
This vehicle has 2 (or 3) fuse panels,
one located in the driver's side panel
bolster, the other in the motor com-
partment near the battery.If any of your vehicle’s lights, acces-
sories, or controls do not work, check
the appropriate circuit fuse. If a fuse
has blown, the element inside the
fuse will be melted or broken.
If the electrical system does not
work, first check the driver's side
fuse panel. Before replacing a blown
fuse, turn the vehicle and all switch-
es off, and then disconnect the neg-
ative battery cable. Always replace a
blown fuse with one of the same rat-
ing.
If the replacement fuse blows, this
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorized
HYUNDAI dealer.
Information
Three kinds of fuses are used: blade
type for lower amperage rating, car-
tridge type, and multi fuse for higher
amperage ratings.
i
NEVER replace a fuse with any-
thing but another fuse of the
same rating.
A higher capacity fuse could
cause damage and possibly
cause a fire.
Do not install a wire or alu-
minum foil instead of the
proper fuse - even as a tem-
porary repair. It may cause
extensive wiring damage and
possibly a fire.
WARNING
Normal ■Blade type
■Cartridge typeBlown
NormalBlown
OAEE076008 Normal
Blown
■Multi fuse

7-62
Maintenance
1. Using a flat-blade screwdriver,
gently pry the lens from the interi-
or lamp housing.
2. Remove the bulb by pulling it
straight out.
3. Install a new bulb in the socket.
4. Align the lens tabs with the interi-
or lamp housing notches and snap
the lens into place.
Use care not to dirty or damage
lens, lens tab, and plastic hous-
ings.
NOTICE
Prior to working on the Interior
Lights, ensure that the lamp is
off to avoid burning your fingers
or receiving an electric shock.
WARNING
■Map lamp (Bulb type)
OAE076045
OAE076046
■Vanity mirror lamp
■Luggage compartment lamp
OAE076048
OAE076047
■Room lamp (Bulb type)
Map lamp, room lamp, vanity mirror lamp and
luggage compartment lamp

Unlock Charging Door in Emergency ..........................H38
Checking Charging Status ...............................................H39
Charging Status Indicator Lamp for Portable
Charger ................................................................................H40
How to Disconnect Portable Charger
(ICCB: In-Cable Control Box) ..........................................H43
Unlock Charging Connector in Emergency ................H44
Precautions for Portable Charger
(ICCB: In-Cable Control Box) ..........................................H44
EV Charging Troubleshooting
- Steps to Consider ...............................................H45
How to Start the Vehicle ......................................H46
How to Stop the Vehicle.......................................H46
Virtual Engine Sound System ..............................H47
Distance to Empty .................................................H47
When destination is not set ...........................................H48
When destination is set...................................................H48
Tips for Improving Distance to Empty ...............H49
Power/Charge Gauge............................................H49
State of Charge (SOC) Gauge for High Voltage
Battery ...................................................................H49
Warning and Indicator Lights
(related to electric vehicle) .................................H50
Ready Indicator ................................................................H50
Service Warning Light .....................................................H51
This warning light illuminates : ......................................H51
Power Down Warning Light ...........................................H51
Charging Indicator Light..................................................H52
High Voltage Battery Level Warning Light .................H52
Regenerative Brake Warning Light ..............................H52
LCD Display Messages ..........................................H52
Shift to P to charge .........................................................H52
Remaining Time .................................................................H53
Charging Door Open ........................................................H53
Charging Stopped. Check the AC/DC charger ...........H53
Charging Stopped. Check the cable connection .......H54
Check regenerative brakes/
Stop vehicle and check regenerative brakes ............H55
Low Battery........................................................................H55
Charge immediately. Power limited ..............................H55
Low outside temperature may limit power output.
Charge EV battery/Low EV battery temperature.
Power limited .....................................................................H56
Battery Overheated! Stop safety .................................H56
Power limited .....................................................................H57
Stop vehicle and check power supply .........................H57
Check virtual engine sound System .............................H58
Check electric vehicle system .......................................H58
Energy Flow ..........................................................H58
Vehicle Stop........................................................................H59
EV Propulsion ....................................................................H59
Regeneration ......................................................................H59
Aux. Battery Saver+ .............................................H60
Mode ....................................................................................H60
System Setting...................................................................H61
Utility Mode ............................................................H61
System Setting and Activation ......................................H62
System Deactivation .........................................................H62
If an Accident Occurs ...........................................H63
Other Precautions for Electric Vehicle ..............H65
Service Plug ...........................................................H65

H4
Main Components
On-Board Charger (OBC) :
A device that charges the high volt-
age battery by converting AC
power from a charging station to
DC power.
• Inverter :A device that transforms
direct current (DC) from the high
voltage battery into alternating cur-
rent (AC) to supply power to the
electric motor and transforms AC
back into DC when available to
charge the high voltage battery.
LDC :An LDC is a Low Voltage
DC-to-DC converter that trans-
forms power from the high voltage
battery to the low voltage battery
(12V) in order to supply electrical
power to the vehicle to operate the
lights, wipers, multimedia, etc. Electric Motor :A device that con-
verts electrical energy from the
high voltage battery into mechani-
cal energy which is then trans-
ferred as rotational torque to the
wheels in order to drive the vehicle.
Reduction gear :Delivers rota-
tional force of the motor to the tires
at appropriate speeds and torque.
EV Battery (Lithium-ion) :On
board high voltage storage device
with a capacity up to 64 kWh
❈OBC : On-Board Charger
❈LDC : Low Voltage DC-DC Converter
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Do not remove or disassem-
ble high voltage components
and high voltage battery con-
nectors and wires. Also, be
careful not to damage high
voltage components and the
high voltage battery. It may
cause serious injury and sig-
nificantly impact the perform-
ance and durability of the
vehicle.
When inspection and mainte-
nance is required for high volt-
age components, contact an
authorized HYUNDAI dealer.
WARNING