2018 Hyundai Ioniq Hybrid traction control

7-47
7
Maintenance
Compact spare tire replacement
(if equipped)
A compact spare tire has a shorter
tread life than a regular size tire.
Replace it when you can see the
tread wear indicator bars on the tire.
The replacement compact spare tire
should be the same size and design
tire as the one provided with your
new vehicle and should be mounted
on the same compact spare tire
wheel. The compact spare tire is not
designed to be mounted on a regular
size wheel, and the compact spare
tire wheel is not designed for mount-
ing a regular size tire.
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.
Tire traction
Tire traction can be reduced if you
drive on worn tires, tires that are
improperly inflated or on slippery
road surfaces. Tires 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. (Continued)
•When replacing tires (or
wheels), it is recommended to
replace the two front or two
rear tires (or wheels) as a pair.
Replacing just one tire can
seriously affect your vehicle’s
handling.
•Tires degrade over time, even
when they are not being used.
Regardless of the remaining
tread, HYUNDAI recommends
that tires be replaced after six
(6) years of normal service.
•Heat caused by hot climates or
frequent high loading condi-
tions can accelerate the aging
process. Failure to follow this
warning may cause sudden
tire failure, which could lead to
a loss of vehicle control result-
ing in an accident.
The original tire 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 com-
pact spare tire is for emergency
use only. Do not operate your
vehicle over 80 km/h (50 mph)
when using the compact spare
tire.
WARNING

7-50
Maintenance
4. Tire ply composition and
material
The number of layers or plies of rub-
ber-coated fabric in the tire. Tire
manufacturers also must indicate the
materials in the tire, 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 belted-bias ply con-
struction.
5. Maximum permissible infla-
tion pressure
This number is the greatest amount
of air pressure that should be put in
the tire. Do not exceed the maximum
permissible inflation pressure. Refer
to the Tire 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 tire. When
replacing the tires on the vehicle,
always use a tire that has the same
load rating as the factory installed
tire.
7. Uniform tire quality grading
Quality grades can be found where
applicable on the tire 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 tire when tested under controlled
conditions on a specified govern-
ment test course. For example, a tire
graded 150 would wear one-and-a-
half times (1½) as well on the gov-
ernment course as a tire graded 100.
The relative performance of tires
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.
These grades are molded on the
sidewalls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicle
may vary with respect to grade.

7-51
7
Maintenance
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on spec-
ified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perform-
ance.
Temperature - A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’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 tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. Grades B and A
represent higher levels of perform-
ance on the laboratory test wheel
than the minimum required by law. The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning,
or peak traction characteristics.
WARNING
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

I-7
If the 12 volt battery is discharged (hybrid vehicle) ......6-5
If the 12 volt battery is discharged
(plug-in hybrid vehicle) ..................................................6-9
If the engine overheats .................................................6-12
If the engine stalls at a crossroad or crossing ................6-2
If the engine stalls while driving ....................................6-2
If the engine will not start ..............................................6-4
If you have a flat tire ....................................................6-20
If you have a flat tire while driving ...............................6-3
Ignition switch ................................................................5-5
Engine Start/Stop button ..............................................5-9
Key ignition switch......................................................5-6
Immobilizer system ......................................................3-11
Impact sensing door unlock..........................................3-16
Important safety precautions ..........................................2-2
Air bag hazards ............................................................2-2
Always wear your seat belt..........................................2-2
Control your speed.......................................................2-3
Driver distraction .........................................................2-2
Keep your vehicle in safe condition ............................2-3
Restrain all children .....................................................2-2
In case of emergency while driving ...............................6-2
Indicator light ...............................................................3-54
Inside rearview mirror ..................................................3-22
Instrument cluster .........................................................3-45
Instrument panel illumination....................................3-47
Dual clutch transmission shift indicator ....................3-53Gauges and meters .....................................................3-47
LCD display control ..................................................3-81
LCD display messages...............................................3-66
LCD display modes .............................................3-82, 89
Trip computer .....................................................3-96,101
User settings mode ..............................................3-86, 92
Warning and indicator lights......................................3-54
Instrument panel fuse replacement ...............................7-54
Instrument panel overview .............................................1-6
Interior care...................................................................7-89
Interior features
Ashtray .....................................................................3-147
Cigarette lighter .......................................................3-152
Clock ........................................................................3-152
Clothes hanger .........................................................3-153
Cup holder ...............................................................3-147
Floor mat anchor(s) .................................................3-153
Luggage net (holder) ...............................................3-154
Power outlet .............................................................3-149
Sunvisor ...................................................................3-148
Wireless cellular phone charging system ................3-150
Interior lamp AUTO cut .............................................3-114
Interior lights ..............................................................3-114
Front lamps ..............................................................3-114
Interior lamp AUTO cut...........................................3-114
Luggage compartment lamp ....................................3-115
Puddle lamp .............................................................3-116
Rear lamps ...............................................................3-115
Vanity mirror lamp ...................................................3-116
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Index
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