Get Maintenance -> Tyres and wheels Guide for Hyundai Ioniq SUV First Generation (2021-2026)

Maintenance

TYRES AND WHEELS

Tyre care

WARNING

For proper maintenance, safety, and

maximum electric energy economy, you

must always maintain recommended

tyre inflation pressures and stay within

the load limits and weight distribution

recommended for your vehicle.

Tyre failure may cause loss of vehicle

control resulting in an accident. To

reduce risk of SERIOUS INJURY or

DEATH, take the following precautions:

śꢀ Inspect your tyres monthly for

proper inflation as well as wear and

damage.

śꢀ The recommended cold tyre pressure

for your vehicle can be found in this

manual and on the tyre label located

on the driver’s side centre pillar.

Always use a tyre pressure gauge to

measure tyre pressure. Tyres with

too much or too little pressure wear

unevenly causing poor handling.

śꢀ Check the pressure of the spare

every time you check the pressure of

the other tyres on your vehicle.

śꢀ Replace tyres that are worn, show

uneven wear, or are damaged. Worn

tyres can cause loss of braking

effectiveness, steering control, or

traction.

śꢀ ALWAYS replace tyres with the

same size, type, construction and

tread pattern as each tyre that was

originally supplied with this vehicle.

Using tyres and wheels other than

the recommended sizes could cause

unusual handling characteristics,

poor vehicle control, or negatively

affect your vehicle’s Anti-Lock Brake

System (ABS) resulting in a serious

accident.

OJK010021

All specifications (sizes and pressures)

can be found on a label attached to the

driver’s side centre pillar.

Recommended cold tyre

inflation pressures

All tyre pressures (including the spare)

should be checked when the tyres are

cold. “Cold tyres” means the vehicle has

not been driven for at least three hours

or driven less than 1.6 km.

Warm tyres normally exceed

recommended cold tyre pressures by 28

to 41 kPa (4 to 6 psi). Do not release air

from warm tyres to adjust the pressure

or the tyres will be under-inflated. For

recommended inflation pressure, refer to

“Tyre and Wheels” section in chapter 2.

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09

Check tyre inflation pressure

Check your tyres, including the spare

tyre, once a month or more.

WARNING

Recommended pressures must be

maintained for the best ride, vehicle

handling, and minimum tyre wear.

How to check

Over-inflation or under-inflation

Use a good quality tyre pressure gauge

to check tyre pressure. You can not tell

if your tyres are properly inflated simply

by looking at them. Radial tyres may look

properly inflated when they are under-

inflated.

Remove the valve cap from the tyre valve

stem. Press the tyre gauge firmly onto

the valve to get a pressure measurement.

If the cold tyre inflation pressure

matches the recommended pressure on

the tyre and loading information label,

no further adjustment is necessary. If the

pressure is low, add air until you reach

the recommended pressure. Make sure

to put the valve caps back on the valve

stems. Without the valve cap, dirt or

moisture could get into the valve core

and cause air leakage. If a valve cap is

missing, install a new one as soon as

possible.

If you overfill the tyre, release air by

pushing on the metal stem in the centre

of the tyre valve. Recheck the tyre

pressure with the tyre gauge. Be sure

to put the valve caps back on the valve

stems. Without the valve cap, dirt or

moisture could get into the valve core

and cause air leakage. If a valve cap is

missing, install a new one as soon as

possible.

can reduce tyre life, adversely affect

vehicle handling, and lead to sudden

tyre failure that could result in loss of

vehicle control resulting in an accident.

Severe under-inflation can lead to

severe heat build-up, causing blowouts,

tread separation and other tyre failures

that can result in the loss of vehicle

control resulting in an accident. This

risk is much higher on hot days and

when driving for long periods at high

speeds.

CAUTION

śꢀ Under-inflation results in excessive

wear, poor handling and reduced

electric energy economy. Wheel

deformation is also possible. Keep

your tyre pressures at the proper

levels. If a tyre frequently needs

refilling, we recommend it be

checked by an authorised HYUNDAI

dealer.

śꢀ Over-inflation produces a harsh ride,

excessive wear at the centre of the

tyre tread, and a greater possibility

of damage from road hazards.

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Maintenance

Tyre rotation

Information

The outside and inside of the

To equalize tread wear, HYUNDAI

recommends that the tyres be rotated

every 12,000 km or sooner if irregular

wear develops.

unsymmetrical tyre is distinguishable.

When installing an unsymmetrical tyre, be

sure to install the side marked “outside”

face the outside. If the side marked

“inside” is installed on the outside, it

will have a negative effect on vehicle

performance.

During rotation, check the tyres for

correct balance.

When rotating tyres, check for uneven

wear and damage. Abnormal wear

is usually caused by incorrect tyre

pressure, improper wheel alignment,

out-of-balance wheels, severe braking

or severe cornering. Look for bumps or

bulges in the tread or side of the tyre.

Replace the tyre if you find any of these

conditions. Replace the tyre if fabric or

cord is visible. After rotation, be sure to

bring the front and rear tyre pressures

to specification and check wheel lug nut

tightness (proper torque is 11~13kgf·m

(79~94 lbf·ft).

WARNING

śꢀ Do not use the compact spare tyre

for tyre rotation.

śꢀ Do not mix bias ply and radial ply

tyres under any circumstances.

This may cause unusual handling

characteristics that may cause loss

of vehicle control resulting in an

accident.

OHI078078

Disc brake pads should be inspected for

wear whenever tyres are rotated.

9-24

09

Wheel alignment and tyre

balance

The wheels on your vehicle were aligned

and balanced carefully at the factory to

give you the longest tyre life and best

overall performance.

In most cases, you will not need to have

your wheels aligned again. However,

if you notice unusual tyre wear or your

vehicle pulling one way or the other, the

alignment may need to be reset.

If you notice your vehicle vibrating when

driving on a smooth road, your wheels

may need to be rebalanced.

WARNING

To reduce the risk of DEATH or SERIOUS

INJURY:

śꢀ Replace tyres that are worn, show

uneven wear, or are damaged. Worn

tyres can cause loss of braking

effectiveness, steering control, and

traction.

śꢀ Always replace tyres with the same

size as each tyre that was originally

supplied with this vehicle. Using

tyres and wheels other than the

recommended sizes could cause

unusual handling characteristics,

poor vehicle control, or negatively

affect your vehicle’s Anti-Lock Brake

System (ABS) resulting in a serious

accident.

NOTICE

Incorrect wheel weights can damage

your vehicle’s aluminium wheels. Use

only approved wheel weights.

śꢀ When replacing tyres (or wheels), it

is recommended to replace the two

front or two rear tyres (or wheels)

as a pair. Replacing just one tyre

can seriously affect your vehicle’s

handling.

Tyre replacement

śꢀ Tyres degrade over time, even when

they are not being used. Regardless

of the remaining tread, HYUNDAI

recommends that tyres be replaced

after six (6) years of normal service.

śꢀ Heat caused by hot climates or

frequent high loading conditions can

accelerate the aging process. Failure

to follow this warning may cause

sudden tyre failure, which could lead

to a loss of vehicle control resulting

in an accident.

ONE1081027L

[A] : Tread wear indicator

If the tyre is worn evenly, a tread wear

indicator will appear as a solid band

across the tread. This shows there is less

than 1.6 mm of tread left on the tyre.

Replace the tyre when this happens.

Do not wait for the band to appear across

the entire tread before replacing the tyre.

9-25

Maintenance

Tyre sidewall labelling

WARNING

This information identifies and describes

the fundamental characteristics of

the tyre and also provides the tyre

identification number (TIN) for safety

standard certification. The TIN can be

used to identify the tyre in case of a

recall.

The original tyre should be repaired or

replaced as soon as possible to avoid

failure of the spare and loss of vehicle

control resulting in an accident. The

compact spare tyre is for emergency

use only. Do not operate your vehicle

over 80 km/h when using the compact

spare tyre.

Wheel replacement

When replacing the metal wheels for any

reason, make sure the new wheels are

equivalent to the original factory units in

diameter, rim width and offset.

Tyre traction

Tyre traction can be reduced if you drive

on worn tyres, tyres that are improperly

inflated or on slippery road surfaces.

Tyres should be replaced when tread

wear indicators appear. To reduce the

possibility of losing control, slow down

whenever there is rain, snow or ice on

the road.

ONE1081028L

1. Manufacturer or brand name

Manufacturer or brand name is shown.

2. Tyre size designation

A tyre’s sidewall is marked with a tyre

size designation. You will need this

information when selecting replacement

tyres for your car. The following explains

what the letters and numbers in the tyre

size designation mean.

Tyre maintenance

In addition to proper inflation, correct

wheel alignment helps to decrease tyre

wear. If you find a tyre is worn unevenly,

have your dealer check the wheel

alignment.

When you have new tyres installed,

make sure they are balanced. This will

increase vehicle ride comfort and tyre

life. Additionally, a tyre should always

be rebalanced if it is removed from the

wheel.

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09

Example tyre size designation:

Tyre speed ratings

(These numbers are provided as an

example only; your tyre size designator

could vary depending on your vehicle.)

235/55R19 105W

235 - Tyre width in millimetres.

The chart below lists many of the

different speed ratings currently being

used for passenger vehicle tyres. The

speed rating is part of the tyre size

designation on the sidewall of the tyre.

This symbol corresponds to that tyre’s

designed maximum safe operating

speed.

55 - Aspect ratio. The tyre’s section

height as a percentage of its width.

R - Tyre construction code (Radial).

19 - Rim diameter in inches.

105 - Load Index, a numerical code

associated with the maximum load

the tyre can carry.

W - Speed Rating Symbol. See the

speed rating chart in this section for

additional information.

Speed Rating

Maximum Speed

Symbol

S

T

180 km/h

190 km/h

210 km/h

240 km/h

270 km/h

300 km/h

H

V

W

Y

Wheel size designation

Wheels are also marked with important

information that you need if you ever

have to replace one. The following

explains what the letters and numbers in

the wheel size designation mean.

Example wheel size designation:

7.5J X 19

7.5 - Rim width in inches.

J - Rim contour designation.

19 - Rim diameter in inches.

3. Checking tyre life (TIN : Tyre

Identification Number)

Any tyres that are over six years old,

based on the manufacturing date,

(including the spare tyre) should be

replaced by new ones. You can find

the manufacturing date on the tyre

sidewall (possibly on the inside of

the wheel), displaying the DOT Code.

The DOT Code is a series of numbers

on a tyre consisting of numbers and

English letters. The manufacturing date

is designated by the last four digits

(characters) of the DOT code.

DOT : XXXX XXXX OOOO

The front part of the DOT shows a plant

code number, tyre size and tread pattern

and the last four numbers indicate week

and year manufactured.

For example:

DOT XXXX XXXX 5022 represents that the

tyre was produced in the 50th week of

2022.

9-27

Maintenance

Tread wear

4. Tyre ply composition and material

The tread wear grade is a comparative

rating based on the wear rate of the tyre

when tested under controlled conditions

on a specified government test course.

For example, a tyre graded 150 would

wear one-and-a-half times (1½) as well

on the government course as a tyre

graded 100.

The relative performance of tyres

depends upon the actual conditions

of their use, however, and may depart

significantly from the norm due to

variations in driving habits, service

practices and differences in road

characteristics and climate.

The number of layers or plies of

rubber-coated fabric in the tyre. Tyre

manufacturers also must indicate the

materials in the tyre, which include steel,

nylon, polyester, and others. The letter

“R” means radial ply construction; the

letter “D“ means diagonal or bias ply

construction; and the letter “B” means

restrained-bias ply construction.

5. Maximum permissible inflation

pressure

This number is the greatest amount

of air pressure that should be put in

the tyre. Do not exceed the maximum

permissible inflation pressure. Refer to

the Tyre and Loading Information label

for recommended inflation pressure.

These grades are molded on the

sidewalls of passenger vehicle tyres. The

tyres available as standard or optional

equipment on your vehicle may vary with

respect to grade.

6. Maximum load rating

This number indicates the maximum

load in kilograms and pounds that can

be carried by the tyre. When replacing

the tyres on the vehicle, always use a

tyre that has the same load rating as the

factory installed tyre.

Traction - AA, A, B & C

The traction grades, from highest to

lowest, are AA, A, B and C. Those grades

represent the tyre’s ability to stop on wet

pavement as measured under controlled

conditions on specified government

test surfaces of asphalt and concrete. A

tyre marked C may have poor traction

performance.

7. Uniform tyre quality grading

Quality grades can be found where

applicable on the tyre sidewall between

tread shoulder and maximum section

width.

For example:

TREADWEAR 200

TRACTION AA

WARNING

The traction grade assigned to this

tyre is based on straight ahead braking

traction tests, and does not include

acceleration, cornering, hydroplaning,

or peak traction characteristics.

TEMPERATURE A

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09

Temperature - A, B & C

CAUTION

The temperature grades are A (the

highest), B and C representing the tyre’s

resistance to the generation of heat

and its ability to dissipate heat when

tested under controlled conditions on a

specified indoor laboratory test wheel.

Sustained high temperature can cause

the material of the tyre to degenerate

and reduce tyre life, and excessive

temperature can lead to sudden tyre

failure. Grades B and A represent higher

levels of performance on the laboratory

test wheel than the minimum required

by law.

The side wall of a low aspect ratio

tyre is shorter than the normal one.

Thus, the low-aspect wheel and tyre

are easily damaged. Follow the below

instructions.

śꢀ When driving on a rough road or

driving off a road, be careful not to

damage the tyres and wheels. After

driving, inspect the tyres and wheels.

śꢀ When passing over a pothole, speed

bump, manhole, or curb stone,

drive the vehicle slowly so as not to

damage the tyres and wheels.

śꢀ When there is an impact on a tyre,

inspect the tyre condition. We

recommend that you contact an

authorised HYUNDAI dealer.

śꢀ Inspect the tyre condition and

pressure every 3,000 km to prevent

tyre damage.

śꢀ It is difficult to recognise a tyre

damage only with your eyes.

When there is a slight hint of a tyre

damage, check and replace the tyre

to prevent the damage caused by air

leakage.

WARNING

The temperature grade for this tyre is

established for a tyre 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 tyre failure.

This may cause loss of vehicle control

resulting in an accident.

Low aspect ratio tyres

(if equipped)

The aspect ratio is lower than 50 on low

aspect ratio tyres.

Because low aspect ratio tyres are

optimised for handling and braking, their

sidewall is a little stiffer than a standard

tyre. Also low aspect ratio tyres tend

to be wider and consequently have a

greater contact patch with the road

surface. In some instances they may

generate more road noise compared with

standard tyres.

śꢀ When a tyre is damaged whilst

driving on a rough road, off a road,

or over obstacles, such as a pothole,

manhole, or curb stone, your

warranty does not cover the damage.

śꢀ The tyre information is specified on

the tyre side wall.

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Maintenance -> Tyres and wheels for Your Hyundai Ioniq SUV First Generation (2021-2026)

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