2023 HYUNDAI SONATA steering

Seats & Safety System
3-56
ODN8A039088
Front air bags may not inflate in rollover
accidents because air bag deployment
may not provide protection to the
occupants.
However, side and curtain air bags may
inflate when the vehicle is rolled over by a side impact collision.
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Air bags may not inflate if the vehicle collides with objects such as utility poles
or trees, where the point of impact is
concentrated and the collision energy is
absorbed by the vehicle structure.
SRS Care
The SRS is virtually maintenance-free
and there are no parts you can safely
service by yourself. If the SRS air bag
warning light does not illuminate when
the ignition switch is in the ON position,
or continuously remains on, have your
vehicle immediately inspected by an
authorized HYUNDAI dealer.
Any work on the SRS system, such as
removing, installing, repairing, or any
work on the steering wheel, the front
passenger’s panel, front seats and roof
rails must be performed by an authorized
HYUNDAI dealer. Improper handling of
the SRS system may result in serious
personal injury.
WARNING
To reduce the risk of serious injury or
death, take the following precautions: • Do not attempt to modify or
disconnect the SRS components or
wiring, including the addition of any
kind of badges to the pad covers or
modifications to the body structure.
• Do not place objects over or near
the air bag modules on the steering
wheel, instrument panel, or the front
passenger’s panel above the glove box.
• Clean the air bag pad covers with
a soft cloth moistened with plain
water. Solvents or cleaners could
adversely affect the air bag covers
and proper deployment of the
system.
• Always have inflated air bags
replaced by an authorized HYUNDAI
dealer.
• If components of the air bag system
must be discarded, or if the vehicle
must be scrapped, certain safety
precautions must be observed.
Consult an authorized HYUNDAI
dealer for the necessary information.
Failure to follow these precautions
could increase the risk of personal
injury.

04
4-13
Information - Electronic Brake Force Distribution (EBD)
System Warning Light
When the ABS Warning Light is on
or both ABS and Parking Brake &
Brake Fluid Warning Lights are on, the
speedometer, odometer, or tripmeter may
not work. Also, the EPS Warning Light may illuminate and the steering effort may
increase or decrease. In this case, have the vehicle inspected by
an authorized HYUNDAI dealer as soon as possible.
Electronic Parking Brake
(EPB) Warning Light EPB
This warning light illuminates:
• When you place the Engine Start/Stop
button to the ON position.
- The EPB warning light illuminates for approximately 3 seconds and
then turns off.
• Whenever there is a malfunction with the EPB.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Information
The Electronic Parking Brake (EPB)
Warning Light may illuminate when
the Electronic Stability control (ESC)
Indicator Light comes on to indicates that
the ESC is not working properly (This does not indicate malfunction of the EPB). AUTO HOLD Indicator Light (if equipped)
This indicator light illuminates:
•
[White] When you activate the auto
hold system by pressing the AUTO
HOLD button.
• [Green] When you stop the vehicle
completely by depressing the brake
pedal with the auto hold system
activated.
• [Yellow] When there is a malfunction
with the auto hold system.
In this case, have the vehicle
inspected by an authorized HYUNDAI
dealer.
For more information, refer to “Auto
Hold” in chapter 6.
Electric Power Steering (EPS)
Warning Light
This warning light illuminates:
• When you place the ignition switch to the ON position.
- The Electric Power Steering Warning
light illuminates for about 3 seconds
and then goes off.
• Whenever there is a malfunction with the EPS.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.

Instrument Cluster
4-34
Trip Computer
The trip computer is a microcomputer-
controlled driver information system that
displays information related to driving.
Information
Some driving information stored in the
trip computer (for example Average
Vehicle Speed) resets if the battery is disconnected.
Trip modes
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To change the trip mode, toggle the “, ” switch on the steering wheel.
Average fuel economy/
Instant fuel economy
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Average Fuel Economy (1)
• The average fuel economy is
calculated by the total driving
distance and fuel consumption since
the last average fuel econ omy reset.
• The average fuel economy can
be reset both manually and
automatically.
Manual reset
To clear the average fuel economy
manually, press the OK button on the
steering wheel for more than 1 second
when the average fuel economy is
displayed.
Fuel Economy
• Average Fuel Economy
• Instant Fuel Economy

Accumulated Info
• Tripmeter
• Average Fuel Economy
• Elapsed Time

Drive Info
• Tripmeter
• Average Fuel Economy
• Elapsed Time

Digital Speedometer

Auto Stop (if equipped)
• Auto Stop accumulated time

Smart Shift

5. Convenience Features
Accessing Your Vehicle .................................................................................. 5-4
Remote Key .............................................................................................................. 5-4
Smart Key .................................................................................................................. 5 -7
Immobilizer System ................................................................................................ 5-14
Door Locks .................................................................................................... 5-16
Operating Door Locks from Outside the Vehicle ..................................................5-16
Operating Door Locks from Inside the Vehicle .....................................................5-17
Automatic Door Lock and Unlock Features ..........................................................5-20
Child-Protector Rear Door Locks .......................................................................... 5-20
Rear Occupant Alert (ROA) System ........................................................................ 5-21
Vehicle Auto-Shut Off Function ............................................................................ 5-22
Theft-Alarm System ..................................................................................... 5-23
Driver position memory system ................................................................. 5-24
Storing Positions into Memory ............................................................................. 5-24
Recalling Positions from Memory ......................................................................... 5-25
Resetting the Driver’s Seat Memory System ........................................................5-25
Easy Access Function ............................................................................................. 5-26
Steering Wheel ............................................................................................. 5-27
Electric Power Steering (EPS) ................................................................................. 5-27
Tilt Steering / Telescope Steering ......................................................................... 5-28
Heated Steering Wheel ......................................................................................... 5-29
Horn......................................................................................................................... 5-30
Mirrors ........................................................................................................... 5-31
Inside Rearview Mirror ............................................................................................ 5-31
Side View Mirrors ................................................................................................... 5-39
Reverse Parking Aid Function ................................................................................ 5-41
Windows ....................................................................................................... 5-42
Power Windows ...................................................................................................... 5-43
Panoramic Sunroof ..................................................................................... 5-46
Sunshade ................................................................................................................ 5-47
Sliding the Sunroof ................................................................................................. 5-47
Tilting the Sunroof ................................................................................................. 5-47
Closing the Sunroof ............................................................................................... 5-48
Resetting the Sunroof ............................................................................................ 5-49
Sunroof Open Warning .......................................................................................... 5-49
5

5
Manual Climate Control System .......................................................................... 5-105
Heating and Air Conditioning .............................................................................. 5-106
System Operation ................................................................................................... 5-111
System Maintenance ............................................................................................. 5-112
Automatic Climate Control System ........................................................... 5-114
Automatic Heating and Air Conditioning .............................................................5-115
Manual Temperature Control Mode ..................................................................... 5-116
System Operation .................................................................................................. 5-122
System Maintenance ............................................................................................ 5-123
Windshield Defrosting and Defogging ......................................................5-125
Manual Climate Control System........................................................................... 5-125
Automatic Climate Control System...................................................................... 5-126
Defogging Logic .................................................................................................... 5-127
Auto Defogging System (Only for Automatic Climate Control System) ............5-128
Defroster ................................................................................................................ 5-129
Climate Control Additional Features ........................................................5-130
Sunroof Inside Air Recirculation .......................................................................... 5-130
Automatic Ventilation .......................................................................................... 5-130
Storage Compartment ................................................................................ 5-131
Center Console Storage ......................................................................................... 5-131
Glove Box ................................................................................................................ 5-131
Interior Features .......................................................................................... 5-132
Cup Holder ............................................................................................................. 5-132
Sunvisor ................................................................................................................. 5-133
Power Outlet .......................................................................................................... 5-133
USB Charger .......................................................................................................... 5-134
Wireless Cellular Phone Charging System ..........................................................5-135
Clock ...................................................................................................................... 5-137
Clothes Hanger ...................................................................................................... 5-137
Floor Mat Anchor(s) ............................................................................................... 5-138
Infotainment System .................................................................................. 5-139
USB and iPod® Port ............................................................................................... 5-139
Antenna .................................................................................................................. 5-139
Steering Wheel Audio Control ............................................................................. 5-140
Bluetooth ® Wireless Technology Hands-Free .....................................................5-141
Audio (Display Audio) / Video / Navigation System (AVN) ................................5-141
5. Convenience Features

05
5-11
Start-up
You can start the vehicle without
inserting the key.
For information, refer to the “Engine
Start/Stop Button” section in chapter 6.
NOTICE
To prevent damaging the smart key: • Keep the smart key in a cool,
dry place to avoid damage or
malfunction. Exposure to moisture
or high temperature may cause
the internal circuit of the smart key
to malfunction which may not be
covered under warranty.
• Avoid dropping or throwing the
smart key.
• Protect the smart key from extreme
temperatures. Remote start
You can start the vehicle using the
Remote Start button (7) of the smart key.
To start the vehicle remotely:•
Lock the doors by pressing the door
lock button within 10 m (32 feet)
distance from the vehicle.
• Press the remote start button for over
2 seconds within 4 seconds after
locking the doors and the hazard
warning will blink.
To turn off the remote start function,
press the remote start button once.
In case of the manual operation,
the climate control system will be
maintained even when the engine is
turned OFF. However, the automatic
operation is set to 22°C (72°F).
Remote smart parking assist (RSPA) (if equipped)
The Remote smart parking assist (RSPA)
system helps the drivers park their
vehicle by using sensors to measure
parking spaces and control the steering
wheel, gear shift and vehicle speed to
semi-automatically park the vehicle.
With the smart key, the driver can move
the vehicle forward or backward using
the rearward /forward buttons (5, 6) on
the smart key.
For information, refer to “Remote smart
parking assist (RSPA)” in this chapter.

05
5-21
Rear Occupant Alert (ROA)
System
The Rear Occupant Alert (ROA) system
is provided to help prevent exiting the
vehicle with the rear passenger left in the
vehicle. When you open the front door
after opening and closing the rear door
and turning off the engine, the “Check
rear seats” warning message appears on
the cluster.
„„Cluster
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„„Steering wheel
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CAUTION
• The system does not actually detect
objects or people in the rear seat. By
using a rear door opened and closed
history, the system indicates that
there may be something in the rear
seat.
• The rear door opened and closed
history can be initialized only when
you turn off the engine normally, get
off the vehicle and lock the door with
the remote control key. Therefore,
there could be alarms even though
the back doors are locked.
ex) When you get in and drive your vehicle without locking the doors
after the alarm sounds, there could
be the alarm sounds if you turn off
the engine and open the driver’s seat
door.
WARNING
It does not use the actual sensors but it
provides the alarm sounds by checking
the rear door lock/unlock status as a
reminder.

05
5-27
Electric Power Steering (EPS)
The system assists you with steering the
vehicle. If the vehicle is turned off or
if the power steering system becomes
inoperative, you may still steer the
vehicle, but it will require increased
steering effort.
Also, the steering effort becomes heavier
as the vehicle’s speed increases and
becomes lighter as the vehicle’s speed
decreases for better control of the
steering wheel.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the system
checked by an authorized HYUNDAI
dealer.
CAUTION
• If the Electric Power Steering System
does not operate normally, the
warning light (
) will illuminate
on the instrument cluster. You may
steer the vehicle, but it will require
increased steering efforts. Take your
vehicle to an authorized HYUNDAI
dealer and have the system checked as soon as possible.
• When an abnormality is detected
in the electric power steering
system, to prevent a an accident, the
steering assist function may become
inoperative. At this time, the warning
light turns on or blinks on the cluster.
The steering wheel may become
difficult to control or operate. Have
your vehicle checked immediately,
after moving the vehicle to a safe
area.
Information
The following symptoms may occur during normal vehicle operation: • The steering effort may be high
immediately after placing the ignition switch in the ON position. This happens as the system performs
the EPS system diagnostics. When the
diagnostics are completed, the steering
wheel effort will return to its normal condition.
• When the battery voltage is low, you
might have to put more steering effort.
However, it is a temporary condition so
that it will return to normal condition
after charging the battery.
• A click noise may be heard from the
EPS relay after the ignition switch is in
the ON or LOCK/OFF position.
• Motor noise may be heard when the
vehicle is at a stop or at a low driving speed.
• When you operate the steering wheel
in low temperatures, abnormal noise
may occur. If the temperature rises, the
noise will disappear. This is a normal condition.
• When an error is detected from the EPS, the steering effort assist function
may become inoperative in order to
prevent fatal accidents. Instrument
cluster warning lights may be on or the steering effort may be high. If these
symptoms occur, drive the vehicle to
a safe area as soon as it is safe to do so. Have the system checked by an
authorized HYUNDAI dealer as soon as possible.
steering Wheel