Hyundai Genesis (2016 year). Instruction

TIRES AND WHEELS

Tire care

WARNING

(Continued)

For proper maintenance, safety, and

•

Replace tires that are worn,

maximum fuel economy, you must

Tire failure may cause loss of

show uneven wear, or are

vehicle control resulting in an

damaged. Worn tires can

always maintain recommended tire

inflation pressures and stay within

accident. To reduce risk of

cause loss of braking effec-

SERIOUS INJURY or DEATH,

tiveness, steering) control, or

the load limits and weight distribution

recommended for your vehicle.

take the following precautions:

traction.

•

Inspect your tires monthly for

•

ALWAYS replace tires with the

proper inflation as well as

same size as each tire that

wear and damage.

was originally supplied with

•

The recommended cold tire

this vehicle. Using tires and

pressure for your vehicle can

wheels other than the recom-

be found in this manual and

mended sizes could cause

on the tire label located on the

unusual handling characteris-

driver’s side center pillar.

tics, poor vehicle control, or

Always use a tire pressure

negatively affect your vehi-

gauge to measure tire pres-

cle’s Anti-Lock Brake System

sure. Tires with too much or

(ABS) resulting in a serious

too little pressure wear

accident.

unevenly causing poor han-

dling.

•

Check the pressure of the

spare every time you check

the pressure of the other tires

on your vehicle.

(Continued)

7-45

Maintenance

Recommended cold tire infla-

WARNING

tion pressures

All tire pressures

(including the

Recommended pressures must

spare) should be checked when the

be maintained for the best ride,

tires are cold. “Cold tires” means the

vehicle handling, and minimum

vehicle has not been driven for at

tire wear.

least three hours or driven less than

Over-inflation or under-inflation

one mile (1.6 km).

can reduce tire life, adversely

Warm tires normally exceed recom-

affect vehicle handling, and

mended cold tire pressures by 4 to 6

lead to sudden tire failure that

psi (28 to 41 kPa). Do not release air

could result in loss of vehicle

ODH083005L

from warm tires to adjust the pres-

control resulting in an accident.

All specifications

(sizes and pres-

sure or the tires will be under-inflat-

Severe under-inflation can lead

sures) can be found on a label

ed. For recommended inflation pres-

to severe heat build-up, causing

attached to the driver’s side center

sure, refer to “Tire and Wheels” in

blowouts, tread separation and

pillar

chapter 8.

other tire 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 peri-

ods at high speeds.

7-46

Check tire inflation pressure

If you overfill the tire, release air by

CAUTION

pushing on the metal stem in the

Check your tires, including the spare

center of the tire valve. Recheck the

tire, once a month or more.

Under-inflation results in exces-

tire pressure with the tire gauge. Be

sive wear, poor handling and

sure to put the valve caps back on

reduced fuel economy. Wheel

How to check

the valve stems. Without the valve

deformation is also possible.

cap, dirt or moisture could get into

Use a good quality tire pressure

Keep your tire pressures at the

the valve core and cause air leakage.

gauge to check tire pressure. You

proper levels. If a tire frequently

If a valve cap is missing, install a new

can not tell if your tires are properly

needs refilling, have it checked

one as soon as possible.

inflated simply by looking at them.

by an authorized HYUNDAI

Radial tires may look properly inflat-

dealer.

ed when they are under-inflated.

Over-inflation produces a harsh

Remove the valve cap from the tire

ride, excessive wear at the cen-

valve stem. Press the tire gauge firm-

ter of the tire tread, and a

ly onto the valve to get a pressure

greater possibility of damage

measurement. If the cold tire inflation

from road hazards.

pressure matches the recommended

pressure on the tire and loading

information label, no further adjust-

ment is necessary. If the pressure is

low, add air until you reach the rec-

ommended 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.

7-47

Maintenance

■18inch tire

Tire rotation

✽ NOTICE

To equalize tread wear, HYUNDAI

If your tire is unsymmetrical tire,

recommends that the tires be rotated

check the outside and inside marked

every 7,500 miles

(12,000 km) or

in tire.

sooner if irregular wear develops.

If the inside tire is installed on out-

side, the vehicle driving and wear

During rotation, check the tires for

performance may be damaged.

correct balance.

When rotating tires, check for uneven

wear and damage. Abnormal wear is

WARNING

usually caused by incorrect tire pres-

ODH073802

■

19inch tire

sure, improper wheel alignment, out-

•

Do not use the compact spare

of-balance wheels, severe braking or

tire for tire rotation.

severe cornering. Look for bumps or

•

Do not mix bias ply and radial

bulges in the tread or side of tire.

ply tires under any circum-

Replace the tire if you find either of

stances. This may cause

these conditions. Replace the tire if

unusual handling characteris-

fabric or cord is visible. After rotation,

tics that may cause loss of

be sure to bring the front and rear tire

vehicle control resulting in an

pressures to specification and check

accident.

lug nut tightness (proper torque is

65-79 lb.ft [9-11 kg.m]).

ODH073803

Disc brake pads should be inspected

for wear whenever tires are rotated.

7-48

Wheel alignment and tire bal-

Tire replacement

WARNING

ance

The wheels on your vehicle were

Tread wear indicator

To reduce the risk of DEATH or

aligned and balanced carefully at the

SERIOUS INJURY:

factory to give you the longest tire life

Replace tires that are worn,

and best overall performance.

show uneven wear, or are dam-

In most cases, you will not need to

aged. Worn tires can cause loss

have your wheels aligned again.

of braking effectiveness, steer-

However, if you notice unusual tire

ing control, and traction.

wear or your vehicle pulling one way

Always replace tires with the

or the other, the alignment may need

same size as each tire that was

to be reset.

originally supplied with this

If you notice your vehicle vibrating

OLMB073027

vehicle. Using tires and wheels

when driving on a smooth road, your

other than the recommended

If the tire is worn evenly, a tread wear

wheels may need to be rebalanced.

sizes could cause unusual han-

indicator will appear as a solid band

across the tread. This shows there is

dling characteristics, poor vehi-

cle control, or negatively affect

CAUTION

less than 1/16 inch (1.6 mm) of tread

left on the tire. Replace the tire when

your vehicle’s Anti-Lock Brake

System (ABS) resulting in a

Improper wheel weights can

this happens.

serious accident.

damage your vehicle’s alu-

Do not wait for the band to appear

minum wheels. Use only

Tires degrade over time, even

across the entire tread before replac-

approved wheel weights.

ing the tire.

when they are not being used.

Regardless of the remaining

tread, HYUNDAI recommends

that tires be replaced after six

(6) years of normal service.

(Continued)

7-49

Maintenance

Compact spare tire replacement

Wheel replacement

(Continued)

A compact spare tire has a shorter

When replacing the metal wheels for

Heat caused by hot climates or

tread life than a regular size tire.

any reason, make sure the new

frequent high loading condi-

Replace it when you can see the

wheels are equivalent to the original

tions can accelerate the aging

tread wear indicator bars on the tire.

factory units in diameter, rim width

process. Failure to follow this

The replacement compact spare tire

and offset.

warning may cause sudden tire

should be the same size and design

failure, which could lead to a

tire as the one provided with your

loss of vehicle control resulting

new vehicle and should be mounted

Tire traction

in an accident.

on the same compact spare tire

Tire traction can be reduced if you

wheel. The compact spare tire is not

drive on worn tires, tires that are

designed to be mounted on a regular

improperly inflated or on slippery

size wheel, and the compact spare

road surfaces. Tires should be

tire wheel is not designed for mount-

replaced when tread wear indicators

ing a regular size tire.

appear. To reduce the possibility of

losing control, slow down whenever

WARNING

there is rain, snow or ice on the road.

The original tire should be

repaired or replaced as soon as

possible to avoid failure of the

spare and loss of vehicle con-

trol resulting in an accident. The

compact spare tire is for emer-

gency use only. Do not operate

your vehicle over 50 mph (80

km/h) when using the compact

spare tire.

7-50

Tire maintenance

Example tire size designation:

In addition to proper inflation, correct

(These numbers are provided as an

5,6

wheel alignment helps to decrease

example only; your tire size designa-

tor could vary depending on your

tire wear. If you find a tire is worn

unevenly, have your dealer check the

vehicle.)

wheel alignment.

225/55R18 105T

When you have new tires installed,

make sure they are balanced. This

225 - Tire width in millimeters.

will increase vehicle ride comfort and

55 - Aspect ratio. The tire’s section

tire life. Additionally, a tire should

height as a percentage of its

always be rebalanced if it is removed

OLMB073028

width.

from the wheel.

1. Manufacturer or brand name

R - Tire construction code (Radial).

Manufacturer or brand name is

18 - Rim diameter in inches.

Tire sidewall labeling

shown.

105 - Load Index, a numerical code

This information identifies and

associated with the maximum

describes the fundamental charac-

load the tire can carry.

teristics of the tire and also provides

2. Tire size designation

T - Speed Rating Symbol. See the

the tire identification number

(TIN)

A tire’s sidewall is marked with a tire

speed rating chart in this section

for safety standard certification. The

size designation. You will need this

for additional information.

TIN can be used to identify the tire in

information when selecting replace-

case of a recall.

ment tires for your car. The following

explains what the letters and num-

bers in the tire size designation

mean.

7-51

Maintenance

Wheel size designation

Tire speed ratings

3. Checking tire life (TIN : Tire

Wheels are also marked with impor-

The chart below lists many of the dif-

Identification Number)

tant information that you need if you

ferent speed ratings currently being

Any tires that are over six years old,

ever have to replace one. The follow-

used for passenger car tires. The

based on the manufacturing date,

ing explains what the letters and

speed rating is part of the tire size

(including the spare tire) should be

numbers in the wheel size designa-

designation on the sidewall of the

replaced by new ones. You can find

tion mean.

tire. This symbol corresponds to that

the manufacturing date on the tire

tire's designed maximum safe oper-

sidewall (possibly on the inside of the

Example wheel size designation:

ating speed.

wheel), displaying the DOT Code.

6.5JX18

The DOT Code is a series of num-

6.5 - Rim width in inches.

Speed

bers on a tire consisting of numbers

Rating

Maximum Speed

J - Rim contour designation.

and English letters. The manufactur-

Symbol

ing date is designated by the last four

18 - Rim diameter in inches.

112 mph (180 km/h)

digits (characters) of the DOT code.

118 mph (190 km/h)

130 mph (210 km/h)

DOT : XXXX XXXX OOOO

149 mph (240 km/h)

Above 149 mph (240 km/h)

The front part of the DOT means a

plant code number, tire size and

tread pattern and the last four num-

bers indicate week and year manu-

factured.

For example:

DOT XXXX XXXX 1615 represents

that the tire was produced in the 16th

week of 2015.

7-52

4. Tire ply composition and

6. Maximum load rating

Tread wear

material

This number indicates the maximum

The tread wear grade is a compara-

The number of layers or plies of rub-

load in kilograms and pounds that

tive rating based on the wear rate of

ber-coated fabric in the tire. Tire

can be carried by the tire. When

the tire when tested under controlled

manufacturers also must indicate the

replacing the tires on the vehicle,

conditions on a specified govern-

materials in the tire, which include

always use a tire that has the same

ment test course. For example, a tire

steel, nylon, polyester, and others.

load rating as the factory installed

graded 150 would wear one-and-a-

The letter "R" means radial ply con-

tire.

half times (1½) as well on the gov-

struction; the letter "D“ means diago-

ernment course as a tire graded 100.

nal or bias ply construction; and the

The relative performance of tires

7. Uniform tire quality grading

letter "B" means belted-bias ply con-

depends upon the actual conditions

struction.

Quality grades can be found where

of their use, however, and may

applicable on the tire sidewall

depart significantly from the norm

between tread shoulder and maxi-

due to variations in driving habits,

5. Maximum permissible infla-

mum section width.

service practices and differences in

tion pressure

For example:

road characteristics and climate.

This number is the greatest amount

TREAD wear 200

These grades are molded on the

of air pressure that should be put in

TRACTION AA

sidewalls of passenger vehicle tires.

the tire. Do not exceed the maximum

The tires available as standard or

permissible inflation pressure. Refer

TEMPERATURE A

optional equipment on your vehicle

to the Tire and Loading Information

may vary with respect to grade.

label for recommended inflation

pressure.

7-53

Maintenance

Traction - AA, A, B & C

Temperature - A, B & C

WARNING

The traction grades, from highest to

The temperature grades are A (the

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

highest), B and C representing the

The temperature grade for this

grades represent the tire’s ability to

tire’s resistance to the generation of

tire is established for a tire that

stop on wet pavement as measured

heat and its ability to dissipate heat

is properly inflated and not

under controlled conditions on spec-

when tested under controlled condi-

overloaded. Excessive speed,

ified government test surfaces of

tions on a specified indoor laboratory

under-inflation, over-inflation,

asphalt and concrete. A tire marked

test wheel.

or excessive loading, either

C may have poor traction perform-

Sustained high temperature can

separately or in combination,

ance.

cause the material of the tire to

can cause heat build-up and

degenerate and reduce tire life, and

possible sudden tire failure.

WARNING

excessive temperature can lead to

This may cause loss of vehicle

sudden tire failure. Grade C

control resulting in an accident.

The traction grade assigned to

responds to a level of performance

this tire is based on straight-

which all passenger car tires must

ahead braking traction tests,

meet under the Federal Motor

and does not include accelera-

Vehicle Safety Standard No.

109.

tion, cornering, hydroplaning,

Grades B and A represent higher

or peak traction characteristics.

levels of performance on the labora-

tory test wheel than the minimum

required by law.

7-54

Tire terminology and defini-

Belt

Cold Tire Pressure

tions

A rubber coated layer of cords that is

The amount of air pressure in a tire,

Air Pressure

located between the plies and the

measured in pounds per square inch

tread. Cords may be made from steel

(psi) or kilopascals (kPa) before a tire

The amount of air inside the tire

or other reinforcing materials.

has built up heat from driving.

pressing outward on the tire. Air

pressure is expressed in pounds per

square inch (psi) or kilopascal (kPa).

Bead

Curb Weight

The tire bead contains steel wires

This means the weight of a motor

wrapped by steel cords that hold the

vehicle with standard and optional

Accessory Weight

tire onto the rim.

equipment including the maximum

This means the combined weight of

capacity of fuel, oil and coolant, but

optional accessories. Some exam-

without passengers and cargo.

ples of optional accessories are

Bias Ply Tire

automatic transmission, power

A pneumatic tire in which the plies

seats, and air conditioning.

DOT Markings

are laid at alternate angles less than

90 degrees to the centerline of the

A code molded into the sidewall of a

tread.

tire signifying that the tire is in com-

Aspect Ratio

pliance with the U.S. Department of

The relationship of a tire's height to

Transportation motor vehicle safety

its width.

standards. The DOT code includes

the Tire Identification Number (TIN),

an alphanumeric designator which

can also identify the tire manufactur-

er, production plant, brand and date

of production.

7-55

Maintenance

GVWR

Load Ratings

Normal Occupant Weight

Gross Vehicle Weight Rating

The maximum load that a tire is rated

The number of occupants a vehicle

to carry for a given inflation pressure.

is designed to seat multiplied by 150

pounds (68 kg).

GAWR FRT

Load Index

Gross Axle Weight Rating for the

Occupant Distribution

Front Axle.

An assigned number ranging from 1

to 279 that corresponds to the load

Designated seating positions.

carrying capacity of a tire.

GAWR RR

Outward Facing Sidewall

Gross Axle Weight Rating for the

Maximum Inflation Pressure

Rear axle.

An asymmetrical tire has a particular

The maximum air pressure to which

side that faces outward when mount-

a cold tire may be inflated. The max-

ed on a vehicle. The outward facing

Intended Outboard Sidewall

imum air pressure is molded onto the

sidewall bears white lettering or

The side of an asymmetrical tire, that

sidewall.

bears manufacturer, brand, and/or

must always face outward when

model name molding that is higher or

mounted on a vehicle.

deeper than the same moldings on

Maximum Load Rating

the inner facing sidewall.

The load rating for a tire at the maxi-

Kilopascal (kPa)

mum permissible inflation pressure

The metric unit for air pressure.

Passenger (P-Metric) tire

for that tire.

A tire used on passenger cars and

some light duty trucks and multipur-

Light Truck (LT) Tire

Maximum Loaded Vehicle

pose vehicles.

A tire designated by its manufacturer

Weight

as primarily intended for use on light-

The sum of curb weight; accessory

weight trucks or multipurpose pas-

Ply

weight; vehicle capacity weight; and

senger vehicles.

production options weight.

A layer of rubber-coated parallel

cords

7-56

Pneumatic Tire

Radial Ply Tire

Tread

A mechanical device made of rubber,

A pneumatic tire in which the ply

The portion of a tire that comes into

chemicals, fabric and steel or other

cords that extend to the beads are

contact with the road.

materials, that, when mounted on an

laid at 90 degrees to the centerline of

automotive wheel, provides the trac-

the tread.

Treadwear Indicators

tion and contains the gas or fluid that

sustains the load.

Narrow bands, sometimes called

Rim

"wear bars," that show across the

A metal support for a tire and upon

tread of a tire when only 1/16 inch of

Production Options Weight

which the tire beads are seated.

tread remains.

The combined weight of installed

regular production options weighing

Sidewall

UTQGS

over 5 lb.(2.3 kg) in excess of the

standard items which they replace,

The portion of a tire between the

Uniform Tire Quality Grading

not previously considered in curb

tread and the bead.

Standards is a tire information sys-

weight or accessory weight, includ-

tem that provides consumers with

ing heavy duty brakes, ride levelers,

ratings for a tire's traction, tempera-

Speed Rating

roof rack, heavy duty battery, and

ture and treadwear. Ratings are

special trim.

An alphanumeric code assigned to a

determined by tire manufacturers

tire indicating the maximum speed at

using government testing proce-

which a tire can operate.

dures. The ratings are molded into

Recommended Inflation

the sidewall of the tire.

Pressure

Traction

Vehicle manufacturer's recommend-

The friction between the tire and the

Vehicle Capacity Weight

ed tire inflation pressure as shown

road surface. The amount of grip pro-

The number of designated seating

on the tire placard.

vided.

positions multiplied by 150 lbs. (68

kg) plus the rated cargo and luggage

load.

7-57

Maintenance

Vehicle Maximum Load on the

All season tires

Snow tires

Tire

HYUNDAI specifies all season tires

If you equip your car with snow tires,

Load on an individual tire due to curb

on some models to provide good

they should be the same size and

and accessory weight plus maximum

performance for use all year round,

have the same load capacity as the

occupant and cargo weight.

including snowy and icy road condi-

original tires. Snow tires should be

tions. All season tires are identified

installed on all four wheels; other-

by ALL SEASON and/or M+S (Mud

wise, poor handling may result. Snow

Vehicle Normal Load on the Tire

and Snow) on the tire sidewall. Snow

tires should carry

4 psi

(28 kPa)

Load on an individual tire that is

tires have better snow traction than

more air pressure than the pressure

determined by distributing to each

all season tires and may be more

recommended for the standard tires

axle its share of the curb weight,

appropriate in some areas.

on the tire label on the driver's side of

accessory weight, and normal occu-

the center pillar, or up to the maxi-

pant weight and dividing by 2.

mum pressure shown on the tire

Summer tires

sidewall, whichever is less. Do not

HYUNDAI specifies summer tires on

drive faster than 75 mph (120 km/h)

Vehicle Placard

some models to provide superior

when your vehicle is equipped with

A label permanently attached to a

performance on dry roads. Summer

snow tires.

vehicle showing the original equip-

tire performance is substantially

ment tire size and recommended

reduced in snow and ice. Summer

inflation pressure.

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.

7-58

Radial-ply tires

Longer wearing tires can be more

Low aspect ratio tires

susceptible to irregular tread wear. It

Radial-ply tires provide improved

Low aspect ratio tires, the aspect

is very important to follow the tire

tread life, road hazard resistance and

ratio is lower than 50, are provided

rotation interval in this chapter to

smoother high speed ride. The radi-

for sporty looks.

achieve the tread life potential of

al-ply tires used on this vehicle are of

Because low aspect ratio tires are

these tires. Cuts and punctures in

belted construction, and are selected

radial-ply tires are repairable only in

optimized for handling and braking, it

to complement the ride and handling

may be more uncomfortable to ride

the tread area, because of sidewall

characteristics of your vehicle.

flexing. Consult your tire dealer for

in and there is more noise compare

Radial-ply tires have the same load

with normal tires.

radial-ply tire repairs.

carrying capacity, as bias-ply or bias

belted tires of the same size, and use

the same recommended inflation

WARNING

pressure. Mixing of radial-ply tires

with bias-ply or bias belted tires is

Do not mix bias ply and radial

not recommended. Any combina-

ply tires under any circum-

tions of radial-ply and bias-ply or bias

stances. This may cause unusu-

belted tires when used on the same

al handling characteristics that

vehicle will seriously deteriorate

may cause loss of vehicle con-

vehicle handling. The best rule to fol-

trol resulting in an accident.

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.

7-59

Maintenance

CAUTION

Because the sidewall of the low

•

It is not easy to recognize tire

aspect ratio tire is shorter than

damage with your own eyes.

the normal, the wheel and tire of

But if there is the slightest

the low aspect ratio tire is easi-

hint of tire damage, have the

er to be damaged. So, follow the

tire checked or replaced

instructions below.

because the tire damage may

cause air leakage from the

- When driving on a rough road

or off road, drive cautiously

tire.

because tires and wheels may

•

If the tire is damaged by driv-

be damaged. And after driving,

ing on a rough road, off road,

inspect tires and wheels.

pothole, manhole, or curb

- When passing over a pothole,

stone, it will not be covered by

speed bump, manhole, or curb

the warranty.

stone, drive slowly so that the

tires and wheels are not dam-

aged.

- If the tire is impacted, we rec-

ommend that you inspect the

tire condition or contact an

authorized HYUNDAI dealer.

- To prevent damage to the tire,

inspect the tire condition and

pressure every

1,800 miles

(3,000km).

7-60

Hyundai Genesis (2016 year). Instruction - part 25