2021 HYUNDAI IONIQ ELECTRIC coolant level

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 batterycoolant 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 vehicle
can be driven with the current EV bat-
tery charge level % along the route.
An icon is also indicated so the driver
is able to search for nearby charging
stations.

5-137
Driving your vehicle
5
If you believe your brakes may bewet, apply them lightly while driv-
ing until normal braking operation
returns.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may
have little or no contact with the road
surface and actually ride on the
water. The best advice is SLOW
DOWN when the road is wet.
The risk of hydroplaning increas- es as the depth of tire tread
decreases, refer to "Tire Tread" in
chapter 7.
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is nohigher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may bereduced.
After driving through water, dry the
brakes by gently applying them sev-
eral times while the vehicle is moving
slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or
damage the tires.
Do not install worn-out or damaged
tires, which may reduce traction or
fail the braking operation.
Information
Never over-inflate your tires above the
maximum inflation pressure, as speci-
fied on your tires.
Coolant and high voltage bat- tery
Be sure to check both the coolant
level and the high voltage battery
level before driving.
i

5-139
Driving your vehicle
5
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized HYUNDAI dealer and
most auto parts outlets. Do not use
coolant or other types of anti-freeze
as these may damage the paint fin-ish.
Do not let your parking brakefreeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you shift to P (Park) and block therear wheels so the car cannot roll.
Then release the parking brake.
Do not let ice and snow accu-
mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
car to be sure the movement of the
front wheels and the steering com-
ponents is not obstructed.
Don't place foreign objects ormaterials in the motor compart-
ment
Placement of foreign object or mate-
rials which prevent cooling of the
vehicle, in the motor compartment,
may cause a failure. The manufactur-
er is not responsible for the damage
caused by such placement.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.

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

7-6
Maintenance
Owner Maintenance Schedule
When you stop for fuel:
• Check coolant level in the coolantreservoir.
Check the windshield washer fluid level.
Check for low or under-inflated tires.
While operating your vehicle:
Check for vibrations in the steeringwheel. 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, levelroad.
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 coolantreservoir.
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 otherinjuries.
WARNING

7-11
7
Maintenance
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Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Reduction Gear Fluid
Inspect the reduction gear fluid according to the maintenance sched-
ule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake Fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX
marks on the side of the reservoir.
Use only hydraulic brake fluid con-
forming to DOT 4 specification.
Brake Discs, Pads, Calipers
and Rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
Suspension Mounting Bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the
vehicle off, check for excessive free-
play in the steering wheel. Check the
linkage for bends or damage. Check
the dust boots and ball joints for
deterioration, cracks, or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.

7-12
MaintenanceC
C OO OO LLAA NN TT
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.
OAEE076002L
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 isnot running and can cause seri-
ous injury. Keep hands, clothing
and tools away from the rotat-
ing fan blades of the coolingfan.
WARNING

7-14
MaintenanceW
W AASSHH EERR FF LLUU IIDD
Checking the Washer Fluid
Level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if wash-
er fluid is not available. However, use
washer solvent with antifreeze char-
acteristics in cold climates to preventfreezing.
OAEE076004 To prevent serious injury or
death, take the following safetyprecautions when using washerfluid:
Do not use coolant or
antifreeze in the washer fluid
reservoir.
Coolant can severely obscure
visibility when sprayed on the
windshield and may cause loss
of vehicle control resulting in
an accident or damage to paint
and body trim.
Do not allow sparks or flame to contact the washer fluid or the
washer fluid reservoir. Washer
fluid may contain alcohol and
can be flammable.
Do not drink washer fluid and
avoid contact with skin. Washerfluid is harmful to humans andanimals.
Keep washer fluid away from
children and animals.
WARNING