2020 Hyundai Tucson Owner's Manual - RHD (UK, Australia)

7-61
7
Maintenance
Tyre speed ratings
The chart below lists many of the dif-
ferent 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.
3. Checking tyre life
(TIN : Tyre Identification
Number)
Any tyres that are over 6 years old,
based on the manufacturing date,
tyre strength and performance,
decline with age naturally (even
unused spare tyres). Therefore, the
tyres (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 consist-
ing of numbers and English letters.
The manufacturing date is designat-
ed by the last four digits (characters)
of the DOT code.DOT : XXXX XXXX OOOO
The front part of the DOT means a
plant code number, tyre size and
tread pattern and the last four num-
bers indicate week and year manu-
factured.
For example:
DOT XXXX XXXX 1619 represents
that the tyre was produced in the
16th week of 2019.
Tyre age
Tyres degrade over time, even
when they are not being used.
Regardless of the remaining
tread, it is recommended that
tyres generally be replaced
after six (6) years of normal
service. Heat caused by hot cli-
mates or frequent high loading
conditions can accelerate the
aging process. Failure to follow
this Warning can result in sud-
den tyre failure, which could
lead to a loss of control and an
accident involving serious
injury or death.
WARNING
Speed
Rating
SymbolMaximum Speed
S 180 km/h
T 190 km/h
H 210 km/h
V 240 km/h
W 270 km/h
Y300 km/h

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Maintenance
4. Tyre ply composition and
material
The number of layers or plies of rub-
ber-coated fabric are 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 con-
struction; the letter "D" means diago-
nal or bias ply construction; and the
letter "B" means restrained-bias ply
construction.
5. Maximum permissible infla-
tion 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.
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.
7. Uniform tyre quality grading
Quality grades can be found where
applicable on the tyre sidewall
between tread shoulder and maxi-
mum section width.
For example:
TREADWEAR 200
TRACTION AA
TEMPERATURE A
Tread wear
The tread wear grade is a compara-
tive rating based on the wear rate of
the tyre when tested under controlled
conditions on a specified govern-
ment test course. For example, a tyre
graded 150 would wear one-and-a-
half times (1½) as well on the gov-
ernment 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
because of variations in driving
habits, service practices and differ-
ences in road characteristics and cli-
mate.
These grades are molded on the
side-walls of passenger vehicle
tyres. The tyres available as standard
or optional equipment on your vehi-
cles may vary with respect to grade.

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7
Maintenance
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tyres ability to
stop on wet pavement as measured
under controlled conditions on spec-
ified government test surfaces of
asphalt and concrete. A tyre marked
C may have poor traction perform-
ance.
Temperature -A, B & C
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 condi-
tions 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 perform-
ance on the laboratory test wheel
than the minimum required by the
law.Tyre temperature
The temperature grade for this
tyre is established for a tyre that
is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
build-up and possible sudden
tyre failure. This can cause loss
of vehicle control and serious
injury or death.WARNING
The traction grade assigned to
this tyre is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning,
or peak traction characteristics.
WARNING

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Maintenance
Low aspect ratio tyre
(if equipped)
Low aspect ratio tyres, whose aspect
ratio is lower than 50, are provided
for sporty looks.
Because the low aspect ratio tyres
are optimized for handling and brak-
ing, it may be more uncomfortable to
ride in and there is more noise com-
pare with normal tyres.Because the sidewall of the low
aspect ratio tyre is shorter than
the normal, the wheel and tyre
of the low aspect ratio tyre is
easier to be damaged. So, fol-
low the instructions below.
- When driving on a rough road
or off road, drive cautiously
because tyres and wheels may
be damaged. And after driving,
inspect tyres and wheels.
- When passing over a pothole,
speed bump, manhole, or kerb
stone, drive slowly so that the
tyres and wheels are not dam-
aged.
- If the tyre is impacted, we rec-
ommend that you inspect the
tyre condition or contact an
authorised HYUNDAI dealer.
- To prevent damage to the tyre,
inspect the tyre condition and
pressure every 3,000km.
CAUTION
It is not easy to recognize the
tyre damage with your own
eyes. But if there is the slight-
est hint of tyre damage, even
though you cannot see the
tyre damage with your own
eyes, have the tyre checked or
replaced because the tyre
damage may cause air leak-
age from the tyre.
If the tyre is damaged by driv-
ing on a rough road, off road,
pothole, manhole, or kerb
stone, it will not be covered by
the warranty.
You can find out the tyre infor-
mation on the tyre sidewall.
CAUTION

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7
Maintenance
F FU
US
SE
ES
S
A vehicle’s electrical system is pro-
tected from electrical overload dam-
age by fuses.
This vehicle has 2 (or 3) fuse panels,
one located in the driver’s side panel
bolster, the other in the engine com-
partment near the battery.
If any of your vehicle’s lights, acces-
sories, or controls do not work, check
the appropriate circuit fuse. If a fuse
has blown, the element inside the
fuse will be melted.
If the electrical system does not
work, first check the driver’s side
fuse panel. Before replacing a blown
fuse, turn the engine and all switches
OFF, and then disconnect the nega-
tive battery cable. Always replace a
blown fuse with one of the same rat-
ing.
If the replacement fuse blows, this
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorised
HYUNDAI dealer.Information
Four kinds of fuses are used: blade
type for lower amperage rating, car-
tridge type and Multi fuse and Battery
fuse terminal for higher amperage
ratings.
i■Blade type
Normal
■Cartridge typeBlown
Normal
Blown
■Multi fuse
NormalBlown
■Battery fuse terminal
NormalBlown
OLF074075

7-66
Maintenance
The actual fuse/relay panel label
may differ from equipped items.
NOTICE
Fuse replacement
Never replace a fuse with any-
thing but another fuse of the
same rating.
A higher capacity fuse could
cause damage and possibly a
fire.
Never install a wire or alumini-
um foil instead of the proper
fuse - even as a temporary
repair. It may cause extensive
wiring damage and a possible
fire.
WARNING
Do not use a screwdriver or any
other metal object to remove
fuses because it may cause a
short circuit and damage the
system.
CAUTION
When replacing a blown fuse
or relay with a new one, make
sure the new fuse or relay fits
tightly into the clips. The
incomplete fastening fuse or
relay may cause the vehicle
wiring and electric systems
damage and a possible fire.
Do not remove fuses, relays
and terminals fastened with
bolts or nuts. The fuses,
relays and terminals may be
fastened incompletely, and it
may cause a possible fire. If
fuses, relays and terminals
fastened with bolts or nuts are
blown, we recommend that
you consult an authorised
HYUNDAI dealer.
Do not input any other objects
except fuses or relays into
fuse/relay terminals such as a
driver or wiring. It may cause
contact failure and system
malfunction.
CAUTION

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7
Maintenance
Inner panel fuse replacement
1. Turn the engine and all other
switches OFF.
2. Open the fuse panel cover.3. Pull the suspected fuse straight
out. Use the removal tool provided
in the engine compartment fuse
panel.
4. Check the removed fuse; replace it
if it is blown.
5. Push in a new fuse of the same
rating, and make sure it fits tightly
in the clips.
If it fits loosely, we recommend that
you consult an authorised HYUNDAI
dealer.
Information
If you do not have a spare, use a fuse
of the same rating from a circuit you
may not need for operating the vehi-
cle, such as the cigarette lighter fuse.
If the headlamps or other electrical
components do not work and the
fuses are OK, check the fuse block in
the engine compartment. If a fuse is
blown, it must be replaced with the
same rating.
i
OTLE078026
OTLE078023R

7-68
Maintenance
Fuse switch
Always, place the fuse switch to the
ON position.
If you move the switch to the OFF
position, some items such as the
audio system and digital clock must
be reset and the smart key may not
work properly.
Information
If the fuse switch is OFF, the above
message will appear.
i
OIK057165LOTLE078025R
Always place the fuse switch
in the ON position whilst driv-
ing the vehicle.
Place the fuse switch in the
OFF position when the vehicle
is parked more than a month
to prevent battery discharge.
Do not move the transporta-
tion fuse switch repeatedly.
The fuse switch may be dam-
aged.
CAUTION