air condition HYUNDAI IONIQ ELECTRIC 2022 Service Manual

7-7
7
Maintenance
At least twice a year:(i.e., every Spring and Fall)
Check radiator, heater and air con- ditioning hoses for leaks or dam-
age.
Check windshield washer spray and wiper operation. Clean wiper
blades with 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 hoodhinges.
Lubricate door and hood locks and latches.
Lubricate door rubber weather strips.
Lubricate door checker.
Check the air conditioning system.
Inspect and lubricate reduction gear linkage and controls.
Clean the battery and terminals.
Check the brake fluid level. Follow Normal Maintenance
Schedule if the vehicle is usually
operated where none of the following
conditions apply. If any of the follow-
ing conditions apply, you must follow
the Maintenance Under Severe
Usage Conditions.
Repeated short distance driving.
Driving in dusty conditions or
sandy areas.
Extensive use of brakes.
Driving in areas where salt or other corrosive materials are used.
Driving on rough or muddy roads.
Driving in mountainous areas.
Extended periods of low speed operation.
Driving for a prolonged period in cold temperatures and/or extreme-
ly humid climates.
More than 50% driving in heavy city traffic during hot weather
above 32°C (90°F).
For additional information or assis-
tance see your authorized HYUNDAI
dealer.
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7-8
Maintenance
Normal maintenance schedule (Cont.)
The following maintenance services must be performed to ensure good vehicle performance.
Keep receipts for all vehicle services to protect your warranty. Where both kilometrage and time are shown, the fre-
quency of service is determined by whichever occurs first.
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
No.DESCRIPTIONKILOMETERS X 10001224364860728496108120132144156168180192
MONTHS6121824303642485460667278849096
1Cooling system hoses and connectionsInspect every 12,000 km
2Rotate tires
(including tire pressure and tread wear)Rotate every 6,000 km or 6 months
3Climate control air filterRRRRRRRR
4CoolantReplace every 60,000 km (40,000 miles) or 36 months*1
*2
512V Battery conditionInspect every 12,000 km
6Brake hoses and lines and connections (including booster)IIIIIIII
7Disc brakes and padsIIIIIIII
8Steering gear rack, linkage and bootsIIIIIIII
9Suspension ball joints and mounting boltsIIIIIIII
10Drive shafts and bootsIIIIIIII
11Air conditioning compressor,
air conditioner refrigerant and performanceIIIIIIII
*
1
: When replacing or adding coolant, we recommend that you visit an authorized HYUNDAI dealer.
* 2
:For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.

7-10
Maintenance
Maintenance Under Severe Usage Conditions
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Severe Driving Conditions
A - Repeatedly driving short distances of less than 8 km(5 miles) in normal temperature or less than 16 km
(10 miles) in freezing temperature
B - Extensive low speed driving for long distances
C - Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads
D - Driving in areas using salt or other corrosive materials or in very cold weather E - Driving in sandy areas
F - Driving in heavy traffic area over 32°C (90°F)
G - Driving on uphill, downhill, or mountain road
H - Towing a Trailer, or using a camper, or roof rack
I - Driving as a patrol car, taxi, other commercial use or
vehicle towing
J - Driving over 170 km/h (106 mph)
K - Frequently driving in stop-and-go conditions
MAINTENANCE ITEMMAINTENANCE OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Reduction gear fluid REvery 120,000 kmC, E, F, G, I
Brake/pads, calipersIMore frequentlyC, D, G, H
Steering gear box, linkage & boots/
lower arm ball joint, upper arm ball jointIMore frequentlyC, D, E, F, G, H, I
Drive shafts and bootsIMore frequentlyC, D, E, F, G, H, I
Climate control air filter
(for evaporator and blower unit)RMore frequentlyC, E

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.

7-13
7
Maintenance
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Checking the Brake Fluid
Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-ination. If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized HYUNDAI dealer.
Do not allow brake fluid to con-
tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER beused as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of min-
eral based oil, such as engine
oil, in your brake system can
damage brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
i
NOTICE
If the brake system requires fre-
quent additions of fluid thiscould indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come
in contact with your eyes. Ifbrake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediatemedical attention.
WARNING
OAEE076003

7-32
Maintenance
Temperature - A, B & C
The temperature grades are A (the highest), B and C representing the
tire’s resistance to the generation ofheat and its ability to dissipate heatwhen tested under controlled condi-
tions on a specified indoor laboratorytest wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. Grade C
responds to a level of performance
which all passenger car tires must
meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher
levels of performance on the labora-
tory test wheel than the minimum
required by law.
Tire Terminology and Definitions
Air Pressure
The amount of air inside the tire
pressing outward on the tire.
Air pressure is expressed in kilopas-
cal (kPa) or pounds per square inch(psi).
Accessory Weight
This means the combined weight of
optional accessories. Some exam-
ples of optional accessories are
automatic transmission, power
seats, and air conditioning.
Aspect Ratio
The relationship of a tire's height toits width.
Belt
A rubber coated layer of cords that is
located between the plies and the
tread. Cords may be made from steel
or other reinforcing materials.
The temperature grade for this
tire is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
under-inflation, over-inflation,
or excessive loading, either
separately or in combination,
can cause heat build-up and
possible sudden tire failure.
This may cause loss of vehicle
control resulting in an accident.
WARNING

7-36
Maintenance
All Season Tires
HYUNDAI specifies all season tires
on some models to provide good
performance for use all year round,
including snowy and icy road condi-
tions. All season tires are identified
by ALL SEASON and/or M+S (Mud
and Snow) on the tire sidewall. Snow
tires have better snow traction than
all season tires and may be more
appropriate in some areas.
Summer Tires
HYUNDAI specifies summer tires on
some models to provide superior
performance on dry roads. Summer
tire performance is substantially
reduced in snow and ice. Summer
tires do not have the tire traction rat-
ing M+S (Mud and Snow) on the tire
side wall. If you plan to operate your
vehicle in snowy or icy conditions,
HYUNDAI recommends the use of
snow tires or all season tires on all
four wheels.
Snow Tires
If you equip your car with snow tires,
they should be the same size and
have the same load capacity as the
original tires. Snow tires should be
installed on all four wheels; other-
wise, poor handling may result. Snow
tires should carry 28 kPa (4 psi)more air pressure than the pressure
recommended for the standard tires
on the tire label on the driver’s side of
the center pillar, or up to the maxi-
mum pressure shown on the tire
sidewall, whichever is less. Do not
drive faster than 120 km/h (75 mph)
when your vehicle is equipped with
snow tires.
Radial-Ply Tires
Radial-ply tires provide improved
tread life, road hazard resistance and
smoother high speed ride. The radi-
al-ply tires used on this vehicle are of
belted construction, and are selected
to complement the ride and handling
characteristics of your vehicle.
Radial-ply tires have the same load
carrying capacity, as bias-ply or bias
belted tires of the same size, and usethe same recommended inflation
pressure. Mixing of radial-ply tireswith bias-ply or bias belted tires is
not recommended. Any combina-
tions of radial-ply and bias-ply or biasbelted tires when used on the same
vehicle will seriously deteriorate
vehicle handling. The best rule to fol-
low is: Identical pairs of radial-ply
tires should always be used as a set
for the front tires and a set for the
rear tires.

7-37
7
Maintenance
Longer wearing tires can be more
susceptible to irregular tread wear. It
is very important to follow the tire
rotation interval in this chapter to
achieve the tread life potential of
these tires. Cuts and punctures in
radial-ply tires are repairable only in
the tread area, because of sidewall
flexing. Consult your tire dealer for
radial-ply tire repairs.Low Aspect Ratio Tires (if equipped)
Low aspect ratio tires, the aspect
ratio is lower than 50, are provided
for sporty looks.
Because low aspect ratio tires are
optimized for handling and braking,
their sidewall is a little stiffer than a
standard tire. Also low aspect ratiotires tend to be wider and conse-
quently have a greater contact patch
with the road surface. In some
instances they may generate moreroad noise compared with standard
tires.
Do not mix bias ply and radial
ply tires under any circum-
stances. This may cause unusu-
al handling characteristics that
may cause loss of vehicle con-
trol resulting in an accident.
WARNING
Because the sidewall of a low
aspect ratio tire is shorter than
a standard tire, the rim of thewheel and the tire itself is more
easily susceptible to damage.Use caution when driving and
follow the guidelines below to
help minimize damage to thewheel and tire:
When driving on a rough road
or off road, drive cautiously
because tires and wheels may
be damaged. And after driv-
ing, inspect tires and wheels.
When passing over a pothole,
speed bump, manhole, or
curb stone, drive slowly sothat the tires and wheels are
not damaged.
If the tire is subjected to asevere impact, have the tire
and wheel inspected by an
authorized HYUNDAI dealer.
Inspect the tire condition and
pressure every 3,000 km(1,800 miles).
CAUTION

7-67
7
Maintenance
Aluminum wheel maintenance
The aluminum wheels are coated
with a clear protective finish.
Do not use abrasive cleaner, pol-ishing compound, solvent, or
wire brushes on aluminumwheels.
Clean the wheel when it has cooled.
Use only a mild soap or neutral detergent, and rinse thoroughly
with water. Also, clean thewheels after driving on salted
roads.
Do not wash the wheels with high-speed car wash brushes.
Do not use any cleaners con- taining acid or alkaline deter-
gents.
Corrosion protection
Protecting your vehicle from corro-
sion
By using the most advanced design
and construction practices to combat
corrosion, HYUNDAI produces cars
of the highest quality. However, this is
only part of the job. To achieve the
long-term corrosion resistance your
vehicle can deliver, the owner's
cooperation and assistance is alsorequired.
Common causes of corrosion
The most common causes of corro-
sion on your vehicle are:
Road salt, dirt and moisture that isallowed to accumulate underneath
the vehicle.
Removal of paint or protective coatings by stones, gravel, abra-
sion or minor scrapes and dents
which leave unprotected metal
exposed to corrosion.
High-corrosion areas
If you live in an area where your vehi-
cle is regularly exposed to corrosive
materials, corrosion protection is
particularly important. Some of the
common causes of accelerated cor-
rosion are road salts, dust control
chemicals, ocean air and industrialpollution.
Moisture breeds corrosion
Moisture creates the conditions in
which corrosion is most likely to
occur. For example, corrosion is
accelerated by high humidity, partic-
ularly when temperatures are just
above freezing. In such conditions,
the corrosive material is kept in con-
tact with the car surfaces by moisture
that is slow to evaporate.
Mud is particularly corrosive
because it is slow to dry and holds
moisture in contact with the vehicle.
Although the mud appears to be dry,it can still retain the moisture andpromote corrosion.
NOTICE

888
Specifications & Consumer information
8
Specifications & Consumer information
8
Dimensions ..............................................................8-2
Electric vehicle specifications..............................8-2
Bulb wattage ...........................................................8-3
Tires and wheels ....................................................8-4
Volume and weight ................................................8-5
Air conditioning system ........................................8-5
Recommended lubricants and capacities ...........8-6
Vehicle identification number (VIN) ....................8-7
Vehicle certification label .....................................8-7
Tire specification and pressure label .................8-8
Motor number.........................................................8-8