heating Hyundai Sonata 2018 Owner's Guide

6-7
What to do in an emergency
6
If your temperature gauge indicates
overheating, you experience a loss
of power, or hear loud pinging or
knocking, the engine may be over-
heating. If this happens, you should:
1. Pull off the road and stop as soonas it is safe to do so.
2. Place the shift lever in P (Park) and set the parking brake. If the air
conditioning is ON, turn it OFF.
3. If engine coolant is running out under the vehicle or steam is com-
ing out from the hood, stop the
engine. Do not open the hood until
the coolant has stopped running
or the steaming has stopped. If
there is no visible loss of engine
coolant and no steam, leave the
engine running and check to be
sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off. 4. Check for coolant leaking from the
radiator, hoses or under the vehi-
cle. (If the air conditioning had
been in use, it is normal for cold
water to be draining from it when
you stop.)
5. If engine coolant is leaking out, stop the engine immediately and
call the nearest authorized
HYUNDAI dealer for assistance.
I IF
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T H
H E
E
E
E N
N G
GI
IN
N E
E
O
O V
VE
ER
R H
H E
EA
A T
TS
S
While the engine is
running, keep hands,
clothing and tools
away from the mov-
ing parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
WARNING

6-8
What to do in an emergency6. If you cannot find the cause of theoverheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been
lost, carefully add coolant to the
reservoir to bring the fluid level in
the reservoir up to the halfway
mark.
7. Proceed with caution, keeping alert for further signs of overheat-
ing. If overheating happens again,
call an authorized HYUNDAI deal-
er for assistance.
Serious loss of coolant indi-
cates a leak in the cooling sys-
tem and should be checked as
soon as possible by an author-
ized HYUNDAI dealer.
CAUTION
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.
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.
WARNING

I-2
Accessing your vehicle .....................................................3-4Immobilizer System ...................................................3-12
Remote Key ..................................................................3-4
Smart Key.....................................................................3-8\
Air Bag - Advanced Supplemental Restraint System.....2-45 Additional Safety Precautions ....................................2-67
Air Bag Warning Labels.............................................2-68
How Does the Air Bag System Operate? ...................2-51
Occupant Classification System (OCS) .....................2-56
SRS Care ....................................................................2-66\
What to Expect After an Air Bag Inflates ..................2-55
Where Are the Air Bags? ...........................................2-47
Why Didn't My Air Bag Go Off in a Collision? (Air bags are not designed to inflate in
every collision.).......................................................2-61
Air Cleaner......................................................................7-\
31 Filter Replacement .....................................................7-31
Air Conditioning System ..................................................8-6
Appearance Care .............................................................7-77 Exterior Care ..............................................................7-77
Interior Care ...............................................................7-82
Automatic climate control system ................................3-132 Automatic Heating and Air Conditioning ................3-133
Manual heating and Air Conditioning......................3-134
System Maintenance ................................................3-142
System Operation .....................................................3-140 Automatic emergency braking (AEB) ............................5-97
AEB warning message and system control................5-99
Limitation of the system ..........................................5-105
Sensor to detect the distance from the vehicle in front (front radar) ..............................................5-102
System malfunction ..................................................5-103
System setting and activation .....................................5-97
Battery ........................................................................\
.....7-37 Battery Recharging .....................................................7-38
For Best Battery Service ............................................7-38
Reset features .............................................................7-39
Before Driving ..................................................................5-4 Before Entering the Vehicle .........................................5-4
Before Starting .............................................................5-4
Blind Spot Detection System (BSD) ..............................5-89 BSD (Blind Spot Detection) / LCA (Lane Change Assist) .....................................5-90
RCTA (Rear Cross Traffic Alert) ...............................5-93
Brake Fluid .....................................................................7-2\
9 Checking the Brake Fluid Level ................................7-29
Index
A
B

I-6
Lane keeping Assist System (LKAS) .............................5-74Limitations of the System ..........................................5-82
LKAS function change ...............................................5-81
LKAS malfunction .....................................................5-79
LKAS Operation ........................................................5-75
LCD Display ...................................................................3-72 LCD Modes ................................................................3-72
Warning Messages......................................................3-80
Light ........................................................................\
......3-102 Exterior Lights..........................................................3-102
Interior Lights ...........................................................3-111
Smart High Beam .....................................................3-104
Welcome System ......................................................3-110
Light Bulbs .....................................................................7-6\
8 Headlamp, Position Lamp, Turn Signal Lamp and Side Marker Light Bulb Replacement ....................7-69
High Mounted Stop Lamp..........................................7-74
Interior Light Bulb Replacement ...............................7-75
License Plate Light Bulb Replacement ......................7-75
Rear Combination Light Bulb Replacement ..............7-72
Side Repeater Lamp Replacement .............................7-72 Maintenance Services .......................................................7-6
Owner Maintenance Precautions..................................7-6
Owner's Responsibility.................................................7-6
Manual climate control system .....................................3-122 Heating and Air Conditioning ..................................3-123
System Maintenance ................................................3-130
System Operation .....................................................3-128
Mirrors ........................................................................\
....3-25 Inside Rearview Mirror ..............................................3-25
Reverse Parking Aid Function ...................................3-43
Side view Mirrors .......................................................3-40
Multimedia System ...........................................................4-2 Antenna ........................................................................\
4-2
Audio / Video / Navigation System (AVN) .................4-4
AUX, USB and iPod
®Port ..........................................4-2
Bluetooth®Wireless Technology Hands-Free ..............4-4
Features of Your Vehicle ..............................................4-7
How Vehicle Audio Works ...........................................4-5
Steering Wheel Audio Control .....................................4-3
Index
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