tow Hyundai Sonata 2017 Service Manual

7-27
7
Maintenance
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The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the Engine Coolant
Level
Never remove the
radiator cap or the
drain plug while the
engine and radiator
are hot. Hot coolant
and steam may blow out under
pressure, causing serious
injury.
(Continued)
WARNING
(Continued)
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator cap. Wrap a
thick towel around it, and turn it
counterclockwise slowly to the
first stop. Step back while the
pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning counterclock-
wise to remove it.
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7-29
7
Maintenance
For mixing percentage, refer to the
following table:
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to
use for most temperature ranges of -
31°F and higher.
Changing Engine Coolant
Have coolant changed by an author-
ized HYUNDAI dealer according to
the Maintenance Schedule at the
beginning of this chapter.To prevent damage to engine
parts, put a thick towel around the
radiator cap before refilling the
coolant to prevent the coolant
from overflowing into engine
parts, such as the generator.
NOTICE
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Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control
resulting in an accident.
Engine coolant may also cause
damage to paint and body trim.
WARNING

I-11
Storage compartment ....................................................3-155Center console storage .............................................3-155
Glove box .................................................................3-155
Multi box ..................................................................3-156
Sunglass holder ........................................................3-156
Sunglass holder .............................................................3-156
Sunroof........................................................................\
....3-48
Sunvisor ........................................................................\
3-158
Tachometer ......................................................................3-\
70
Telescope steering ...........................................................3-23
Theft-alarm system .........................................................3-19
Tilt steering .....................................................................3-2\
3
Tire chains .......................................................................5\
-96
Tire loading information label ......................................5-101
Tire Mobility Kit .............................................................6-23
Tire pressure monitoring system (TPMS) ........................6-9
Tire rotation ....................................................................7-44\
Tire specification and pressure label ..............................8-10
Tire terminology and defintions .....................................7-51
Tires and wheels .............................................................7-41 All season tires ...........................................................7-54
Checking tire inflation pressure .................................7-43
Low aspect ratio tires .................................................7-55
Radial-ply tires ...........................................................7-55
Recommended cold tire inflation pressures ...............7-42 Snow tires ...................................................................7-54
Summer tires ..............................................................7-54
Tire care ......................................................................7-\
41
Tire maintenance ........................................................7-47
Tire replacement .........................................................7-45
Tire rotation ................................................................7-44
Tire sidewall labeling .................................................7-47
Tire terminology and defintions .................................7-51
Tire traction ................................................................7-46
Wheel alignment and tire balance ..............................7-45
Wheel replacement .....................................................7-46
Tires and wheels (Spefification) .......................................8-4
Towing ........................................................................\
....6-30
Trailer towing................................................................5-105
Transmission Automatic transmission ..............................................5-14
Ecoshift dual clutch transmission ..............................5-18
Paddle shifter ..............................................................5-24
Shift lock release ........................................................5-25
Shift lock system ........................................................5-25
Trip A/B ........................................................................\
..3-93
Trip computer..................................................................3-92 Digital speedometer....................................................3-96
Fuel Economy ............................................................3-94
Trip A/B ......................................................................3-\
93
Trip computer modes ......................................................3-76
Trunk ........................................................................\
.......3-57 Smart trunk .................................................................3-60
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