2023 HYUNDAI SONATA automatic transmission

08
8-19
DESCRIPTIONKILOMETERS X 1000
8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
MONTHS 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120Drive belts * 2
First, inspect 96,000 km or 72 months.
After that, inspect every 32,000 km or 24 months
Clutch (if equipped) and brake
pedal free play Inspect depending on the condition
Automatic transmission fluid Replace every 96,000km
Dual clutch transmission fluid Inspect every 60,000kmMaintenance Schedule (Smartstream G2.5 T-GDI) (CONT)R : Replace A : Add S : Service I : Inspect L : Lubricate r : Rotate*2 :
The drive belt should be replaced when cracks occur or tension is reduced.NOTICEAfter 120 months or 160,000 km continue to follow the prescribed maintenance intervals.

08
8-21
Engine Coolant
The coolant should be changed at the
intervals specified in the maintenance schedule.
Automatic Transmission Fluid
Automatic Transmission Fluid should
be replaced by an authorized HYUNDAI
dealer at the intervals specified in the
maintenance schedule.
Information
Automatic transmission fluid color is red
when new. As the vehicle is driven, the automatic transmission fluid will begin to look
darker. This is a normal condition and you
should not judge the need to replace the
fluid based upon the changed color.
NOTICE
The use of a non-specified fluid could
result in transmission malfunction
and failure. Use only the specified
automatic transmission fluid (refer
to “Recommended Lubricants and
Capacities” in chapter 2).
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Parking Brake
Inspect the parking brake system
including the parking brake pedal and cables.
Dual clutch transmission fluid (if equipped)
Inspect the dual clutch transmission fluid
according to the maintenance schedule.
Brake Discs, Pads, Calipers and
Rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
Exhaust Pipe and Muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration, or damage. Start
the engine and listen carefully for
any exhaust gas leakage. Tighten
connections or replace parts as
necessary.

08
8-45
WARNING
The traction grade assigned to this tire
is based on straight-ahead braking
traction tests, and does not include
acceleration, cornering, hydroplaning,
or peak traction characteristics.
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 conditions 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.
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.
Tire Terminology and Definitions
Air Pressure
The amount of air inside the tire pressing
outward on the tire. Air pressure is
expressed in kilopascal (kPa) or pounds
per square inch (psi).
Accessory Weight
This means the combined weight of
optional accessories. Some examples
of optional accessories are automatic
transmission, power seats, and air conditioning.
Aspect Ratio
The relationship of a tire’s height to its width. Belt
A rubber coated layer of cords that is
located between the plies and the tread.
Cords may be made from steel or other
reinforcing materials. Bead
The tire bead contains steel wires
wrapped by steel cords that hold the tire
onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies are
laid at alternate angles less than 90
degrees to the centerline of the tread.
Cold Tire Pressure
The amount of air pressure in a tire,
measured in kilopascals (kPa) or pounds
per square inch (psi) before a tire has
built up heat from driving.
Curb Weight
This means the weight of a motor vehicle
with standard and optional equipment
including the maximum capacity of fuel,
oil and coolant, but without passengers
and cargo.

Index
I-2
A
Accessing Your Vehicle ......................................................................................... 5-4
Immobilizer System ........................................................................................ 5-14
Remote Key ....................................................................................................... 5-4
Smart Key .......................................................................................................... 5-7
Air Bag - Advanced Supplemental Restraint System ..........................................3-37
Additional Safety Precautions .......................................................................... 3-57
Air Bag Warning Labels ................................................................................... 3-57
How Does the Air Bag System Operate? .........................................................3-42
Occupant Classification System (OCS) ...........................................................3-47
SRS Care .......................................................................................................... 3-56
What to Expect After an Air Bag Inflates ........................................................3-46
Where Are the Air Bags? .................................................................................. 3-39
Why Didn’t My Air Bag Go Off in a Collision? ..............................................3-52
Air Cleaner........................................................................................................... 8-31
Filter Replacement ........................................................................................... 8-31
Air Conditioning System ..................................................................................... 2-13
Appearance Care .................................................................................................. 8-64
Exterior Care .................................................................................................... 8-64
Interior Care ..................................................................................................... 8-68
Automatic Climate Control System ................................................................... 5-114
Automatic Heating and Air Conditioning ......................................................5-115
Manual Temperature Control Mode ............................................................... 5-116
System Maintenance ...................................................................................... 5-123
System Operation ........................................................................................... 5-122
Automatic Transmission ...................................................................................... 6-13
Automatic Transmission Operation .................................................................. 6-13
Good Driving Practices ................................................................................... 6-18
LCD Display Message ..................................................................................... 6-17
Paddle Shifter (Manual Shift Mode) ............................................................... 6-19
Parking ............................................................................................................. 6-16

Index
I-4
Climate Control Air Filter .................................................................................... 8-33
Filter Inspection ................................................................................................ 8-33
Filter Replacement ........................................................................................... 8-33
D Declaration of Conformity ................................................................................... 6-89
The Radio Frequency Components (Rear Corner Radar) Complies: ...............6-89
Dimensions .......................................................................................................... 2-10
Door Locks .......................................................................................................... 5-16
Automatic Door Lock and Unlock Features ....................................................5-20
Child-Protector Rear Door Locks .................................................................... 5-20
Operating Door Locks from Inside the Vehicle................................................ 5-17
Operating Door Locks from Outside the Vehicle .............................................5-16
Rear Occupant Alert (ROA) System ................................................................ 5-21
Vehicle Auto-Shut Off Function ....................................................................... 5-22
Drive Mode Integrated Control System ..............................................................6-45
Drive Mode ...................................................................................................... 6-45
Vehicle Characteristic ....................................................................................... 6-49
Driver Attention Warning (DAW) ....................................................................... 6-96
Leading Vehicle Departure Alert ................................................................... 6-101
Resetting the System ........................................................................................ 6-98
System Malfunction ......................................................................................... 6-99
System Setting and Operation .......................................................................... 6-96
System Standby ................................................................................................ 6-99
Driver position memory system .......................................................................... 5-24
Easy Access Function ....................................................................................... 5-26
Recalling Positions from Memory ................................................................... 5-25
Resetting the Driver’s Seat Memory System ...................................................5-25
Storing Positions into Memory ....................................................................... 5-24
Dual Clutch Transmission .................................................................................. 6-20
Dual Clutch Transmission Operation ............................................................... 6-20
Good Driving Practices ................................................................................... 6-29
LCD Display Message (Button Type) ..............................................................6-27
Parking ............................................................................................................. 6-27