2011 Hyundai Sonata traction

741
Maintenance
Compact spare tire replacement 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.
Tire maintenance
In addition to proper inflation, correct
wheel alignment helps to decrease
tire wear. If you find a tire is worn
unevenly, have your dealer check the
wheel alignment.
When you have new tires installed,
make sure they are balanced. This
will increase vehicle ride comfort and
tire life. Additionally, a tire should
always be rebalanced if it is removed
from the wheel.
WARNING
A wheel that is not the correct
size may adversely affect wheel
and bearing life, braking and
stopping abilities, handling char-
acteristics, ground clearance,
body-to-tire clearance, snow
chain clearance, speedometer
and odometer calibration, head-
light aim and bumper height.

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Maintenance44
75. Maximum permissible inflation
pressureThis 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 ratingThis 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: TREAD wear 200
TRACTION AA
TEMPERATURE ATread wearThe 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
side-walls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicle
may vary with respect to grade.
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.
WARNING
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.

YF HMA 7.QXP 11/25/2009 1:48 PM Page 44

747
Maintenance
Speed Rating: An alphanumeric
code assigned to a tire indicating the
maximum speed at which a tire can
operate.
Traction : The friction between the
tire and the road surface. The
amount of grip provided.
Tr e a d : The portion of a tire that
comes into contact with the road.
Treadwear Indicators : Narrow
bands, sometimes called "wear
bars," that show across the tread of a
tire when only 2/32 inch of tread
remains.
UTQGS : Uniform Tire Quality
Grading Standards, a tire information
system that provides consumers with
ratings for a tire's traction, tempera-
ture and treadwear. Ratings are
determined by tire manufacturers
using government testing proce-
dures. The ratings are molded into
the sidewall of the tire.
Vehicle Capacity Weight : The num-
ber of designated seating positions
multiplied by 150 lbs. (68 kg) plus the
rated cargo and luggage load. Vehicle Maximum Load on the
Tire
: Load on an individual tire due to
curb and accessory weight plus
maximum occupant and cargo
weight.
Vehicle Normal Load on the Tire :
Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight,
accessory weight, and normal occu-
pant weight and dviding by 2.
Vehicle Placard : A label permanent-
ly attached to a vehicle showing the
original equipment tire size and rec-
ommended inflation pressure.
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 4 psi (28
kPa) more air pressure than the
pressure recommended for the stan-
dard tires on the tire label on the dri-
ver's side of the center pillar, or up to
the maximum pressure shown on the
tire sidewall, whichever is less.

YF HMA 7.QXP 11/25/2009 1:48 PM Page 47

I9
Index
Sports mode ··················\
··················\
··················\
·············5-17
Starting difficulties, see engine will not start ··················\
6-3
Starting the engine··················\
··················\
················5-6, 5-9\
Steering wheel···············\
··················\
··················\
·············4-35Horn··················\
··················\
··················\
··················\
···4-36
Electric power steering··················\
··················\
··········4-35
Tilt steering ··················\
··················\
··················\
·········4-35
Steering wheel audio control ··················\
··················\
···4-104
Storage compartment ··················\
··················\
·················4-98\
Center console storage ··················\
··················\
··········4-98
Glove box ··················\
··················\
··················\
············4-98
Multi box ··················\
··················\
··················\
·············4-99
Sunglass holder ··················\
··················\
··················\
···4-99
Sunglass holder ··················\
··················\
··················\
········4-99
Sunroof··················\
··················\
··················\
··················\
···4-32
Sunvisor ··················\
··················\
··················\
·················4-10\
0
Tachometer··················\
··················\
··················\
···············4-47
Tether anchor system ··················\
··················\
·················3-33\
Theft-alarm system ··················\
··················\
··················\
··4-14
Tilt steering ··················\
··················\
··················\
··············4-35
Tire specification and pressure label ··················\
·············8-7
Tire chains··················\
··················\
··················\
················5-42
Tire pressure monitoring system (TPMS) ··················\
·····6-7 Tires and wheels ··················\
··················\
·················7-36\
, 8-3
Checking tire inflation pressure ··················\
··············7-37
Compact spare tire replacement ··················\
··············7-41
Recommended cold tire inflation pressures ··············7-36
Tire care··················\
··················\
··················\
···············7-36
Tire maintenance ··················\
··················\
··················\
·7-41
Tire replacement ··················\
··················\
··················\
··7-40
Tire rotation ··················\
··················\
··················\
·········7-38
Tire sidewall labeling ··················\
··················\
············7-42
Tire traction ··················\
··················\
··················\
·········7-41
Wheel alignment and tire balance ··················\
···········7-39
Wheel replacement ··················\
··················\
················7-41
Towing ··················\
··················\
··················\
··················\
···6-20
Trailer towing ··················\
··················\
··················\
··········5-51
Transaxle Automatic transaxle ··················\
··················\
··············5-14
Manual transaxle ··················\
··················\
··················\
·5-11
Trip computer ··················\
··················\
··················\
··········4-49
Trunk ··················\
··················\
··················\
··················\
······4-22
Vehicle break-in process ··················\
··················\
··············1-5
Vehicle certification label··················\
··················\
···5-48, 8-6
Vehicle data collection and event data recorders (EDR) ··················\
··················\
··················\
····1-6
Vehicle identification number (VIN) ··················\
·············8-6
Vehicle load limit ··················\
··················\
··················\
·····5-45 Certification label ··················\
··················\
··················\
5-48T
V

YF HMA INDEX.QXP 1/13/2010 2:11 PM Page 9