coolant level HYUNDAI KONA EV 2023 Owners Manual

Foreword / Electric Vehicle System Overview
1-8
•
If over time the maximum charge capacity and the maximum electric
range begin to degrade, contact
an authorized HYUNDAI dealer for
inspection and maintenance.
• If the vehicle will not be used for
an extended amount of time, it is
recommended to fully charge the
vehicle to 100% before storing, and
then charge the vehicle periodically
(approximately every 3 months)
to prevent the EV battery from
discharging completely.
• AC charge is recommended to keep
the high voltage battery in optimal condition.
Avoid storing the vehicle with a low
battery SOC % (e.g. below 20%).
Storing the vehicle with the EV battery
capacity at a low SOC may damage
the battery over time.
• Make sure to use a designated
charger when charging the high
voltage battery. Using different types
of chargers may have a serious impact
on vehicle durability.
CAUTION
• If the vehicle is kept at “H (High)”
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, we
recommend that you contact an
authorized HYUNDAI dealer to
inspect whether the high voltage
battery is still connected.
EV Battery Coolant Heater (if equipped)
When charging your vehicle, the EV
battery coolant heater may be turned on
to increase battery temperature when
the battery temperature is low (i.e. in
cold weather conditions). This allows
the EV battery to charge at nominal
temperatures and helps to improve
battery life.
Note that when the vehicle is being
charged some of the electrical current
coming from the charger is being
used to operate the EV battery coolant
heater. Electrical power consumption
for charging may be slightly higher than normal.
CAUTION
The high voltage battery warmer
system operates when the charging
connector is connected to the vehicle.
However, the high voltage warmer
system may not operate when battery
temperature drops below -35°C (-31°F).

Driving your vehicle
6-42
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel hub.
Drive through any water slowly. Allow
adequate stopping distance because
brake performance may be reduced.
After driving through water, dry the
brakes by gently applying them several
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 specified
on your tires.
Coolant and high voltage battery
Be sure to check both the coolant level
and the high voltage battery level before driving.
Reducing the risk of a rollover
Your multi-purpose passenger vehicle is
defined as a Sports Utility Vehicle (SUV).
SUV’s have higher ground clearance
and a narrower track to make them
capable of performing in a wide variety
of off-road applications. The specific
design characteristics give them a higher
center of gravity than ordinary vehicles
making them more likely to roll over if
you make abrupt turns. Utility vehicles
have a significantly higher rollover rate
than other types of vehicles. Due to this
risk, driver and passengers are strongly
recommended to buckle their seat belts.
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt.
There are steps that a driver can make
to reduce the risk of a rollover. If at all
possible, avoid sharp turns or abrupt
maneuvers, do not load your vehicle
with heavy cargo on the roof, and never
modify your vehicle in any way.
WARNING
Utility vehicles have a significantly
higher rollover rate than other types of
vehicles. To prevent rollovers or loss of
control: • Take corners at slower speeds than
you would with a passenger vehicle.
• Avoid sharp turns and abrupt
maneuvers.
• Do not modify your vehicle in any
way that you would raise the center
of gravity.
• Keep tires properly inflated.
• Do not carry heavy cargo on the roof.
WARNING
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt. Make sure
all passengers are wearing their seat belts.

Driving your vehicle
6-46
NOTICE
When using tire chains: • Wrong size chains or improperly
installed chains can damage your
vehicle’s brake lines, suspension, body and wheels.
• Use SAE “S” class or wire chains.
• If you hear noise caused by chains
contacting the body, retighten the
chain to prevent contact with the
vehicle body.
• To prevent body damage, retighten
the chains after driving 0.5~1.0 km
(0.3~0.6 miles).
• Do not use tire chains on vehicles
equipped with aluminum wheels. If
unavoidable, use a wire type chain.
• Use wire chains less than 12 mm (0.47
in) wide to prevent damage to the
chain’s connection.
Winter Precautions
Check battery and cables
Winter temperatures affect battery
performance. Inspect the battery and
cables, as specified in the chapter 9. The battery charging level can be
checked by an authorized HYUNDAI
dealer or in a service station.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity. For
further information, refer to the chapter
2. When you are not sure about a type
of winter weight oil, we recommend to
consult an authorized HYUNDAI dealer.
To prevent locks from freezing
To prevent the locks from being frozen,
spray approved de-icing fluid or glycerin
into key holes. When a lock opening is
already covered with ice, spray approved
de-icing fluid over the ice to remove it.
When an internal part of a lock freezes,
try to thaw it with a heated key. Carefully
use the heated key to avoid an injury.
Use approved window washer anti-
freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as specified
on the window washer container.
Window washer anti-freeze solution is
available from an authorized HYUNDAI
dealer, and most vehicle accessory
outlets. Do not use coolant or other types
of anti-freeze solution, to prevent any
damage to the vehicle paint.

9
9. Maintenance
Motor compartment ......................................................................................... 9-3
Maintenance services ....................................................................................... 9-4
Owner’s responsibility ................................................................................................ 9-4
Owner maintenance precautions............................................................................... 9-4
Owner maintenance ......................................................................................... 9-5
Owner maintenance schedule .................................................................................... 9-5
Scheduled maintenance services ..................................................................... 9 -7
Maintenance Schedule ................................................................................................ 9 -7
Explanation of scheduled maintenance items ...............................................9-9
Cooling system ............................................................................................................ 9-9
Coolant ......................................................................................................................... 9-9
Reduction gear fluid.................................................................................................... 9-9
Brake hoses and lines.................................................................................................. 9-9Brake fluid ................................................................................................................... 9-9
Brake pads, calipers and rotors .................................................................................. 9-9
Suspension mounting bolts ........................................................................................ 9-9
Drive shafts and boots ................................................................................................ 9-9
Air conditioning refrigerant/compressor................................................................... 9-9
Coolant ............................................................................................................. 9-10
Brake fluid ......................................................................................................... 9-11
Checking the brake fluid level .................................................................................... 9-11
Washer fluid ..................................................................................................... 9-12
Checking the washer fluid level ................................................................................ 9-12
Climate control air filter................................................................................... 9-13
Filter inspection ............................................................................................... 9-13
Filter replacement ...................................................................................................... 9-13
Wiper blades .................................................................................................... 9-14
Blade inspection ......................................................................................................... 9-14
Blade replacement ................................................................................................... 9-14
Battery (12 Volt) ................................................................................................ 9-17
Battery usage.............................................................................................................. 9-18 Battery capacity label ................................................................................................ 9-18
Battery recharging ..................................................................................................... 9-18
Reset items ................................................................................................................. 9-19

09
9-5
OWNER MAINTENANCE
WARNING
Performing maintenance work on a
vehicle can be dangerous. If you lack
sufficient knowledge and experience
or the proper tools and equipment to
do the work, we recommend that the
system be serviced by an authorized
HYUNDAI dealer. ALWAYS follow
these precautions for performing
maintenance work: • Park your vehicle on level ground,
shift to P (Park) position, apply the
parking brake, place the START/STOP
button in the OFF position.
• Block the tires (front and back) to
prevent the vehicle from moving.
Remove loose clothing or jewelry
that can become entangled in
moving parts.
• Keep flames, sparks, or smoking
materials away from the battery and
motor related parts.
The following lists are vehicle checks and
inspections that should be performed
by the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for charging: • Check the coolant level in the coolant
reservoir.
• Check the windshield washer fluid
level.
• Check for low or under-inflated tires.
WARNING
Be careful when checking your coolant
level when the motor compartment is
hot. This may result in coolant being
blown out of the opening and cause
serious burns and other injuries.

Maintenance
9-6
While operating your vehicle: •
Check for vibrations in the steering
wheel. Notice if there is any increased
steering effort or looseness in the
steering wheel, or change in its
straight-ahead position.
• 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 stoplights, 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.
• Do not add regular green coolant. •
At least twice a year:
(i.e., every Spring and Autumn)
• Check radiator, heater and air
conditioning hoses for leaks or damage.
• Check windshield washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer fluid.
• Check headlamp alignment.
• Check the seat belts for wear and function.
At least once a year: • Clean body and door drain holes.
• Lubricate door hinges and hood hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather strips.
• Check the air conditioning system.
• Inspect and lubricate reduction gear
linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.

09
9 -7
SCHEDULED MAINTENANCE SERVICESMaintenance ScheduleThe following maintenance services must be performed to ensure good emission control and performance. Keep receipts for
all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency of service is
determined by whichever occurs first.
R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateMAINTENANCEMonths 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96
Miles×1 000 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Km×1 000 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160 168 176 184 192
Cooling systemInspect ‘‘Coolant level and leak’’ every day
At first, inspect 60,000 km (40,000 miles) or 48 months
after that, inspect every 30,000 km (20,000 miles) or 24 months
Coolant *1
I I I
Battery condition I I I I I I I I
All electrical system I I I I I I I I
Brake lines, hoses and connections I I I I I I I I
Brake pedal I I I I I I I I
parking brake I S I S I S Brake fluid I I R I I R I I
*1 : When replacing or adding coolant, we recommend that you visit an authorized HYUNDAI dealer.

09
9-9
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Cooling system
Check the cooling system parts, 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 maintenance schedule.
Reduction gear fluid
The reduction gear fluid should be
inspected according to the intervals
specified in the maintenance schedule.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between “MIN” and “MAX” marks on the
side of the reservoir. Use only hydraulic
brake fluid conforming to DOT 3 or DOT 4
specification.
Brake pads, calipers and rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
For more information on checking the
pads or lining wear limit, refer to the
HYUNDAI web site.
(http://service.hyundai-motor.com)
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, 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/
compressor
Check the air conditioning lines and
connections for leakage and damage.

Maintenance
9-10
COOLANT
OOSEV078002
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 is low, we recommend
to have the vehicle inspected by an
authorized HYUNDAI dealer.
Use only designated coolant water for
electric vehicles, adding other types
of water or antifreeze can damage the
vehicle.
WARNING
Since specific coolant water (Blue color,
Low conductivity) is applied for electric
vehicles, replenishment of other
antifreeze or water may cause problems
to the vehicle.
WARNING
The electric motor for the
cooling fan may continue to
operate or start up when
the vehicle is not running and can cause serious
injury.
Keep hands, clothing and
tools away from the rotating
fan blades of the cooling fan.
The electric motor for the cooling
fan is controlled by vehicle coolant
temperature, refrigerant pressure and
vehicle speed. As the vehicle coolant
temperature decreases, the electric
motor will automatically shut off. This is a normal condition.

Maintenance
9-12
WASHER FLUID
Checking the washer fluid level
OOSEV078004
Check the fluid level in the washer fluid
reservoir and add fluid if necessary. plain
water may be used if washer fluid is not
available. However, use washer solvent
with antifreeze characteristics in cold
climates to prevent freezing.
WARNING
To prevent serious injury or death, take
the following safety precautions when
using washer fluid: • 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 flames 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. Washer fluid is
poisonous to humans and animals.
• Keep washer fluid away from
children and animals.