service schedule HYUNDAI SONATA 2023 User Guide

08
8-15
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 96,000kmMaintenance Schedule (Smartstream G2.5 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.

Maintenance
8-16
*1 : If TOP TIER Detergent Gasoline is not available, one bottle of Fuel Injector Cleaner is recommended. Fuel Injector Cleaners are
available from your authorized HYUNDAI dealer along with information on how to use them. Do not mix other Fuel Injector
Cleaners.Maintenance Schedule (Smartstream G2.5 T-GDI)The following maintenance services must be performed to ensure good emission control and performance. Keep
receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency
of service is determined by whichever occurs first.
R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateDESCRIPTION KILOMETERS 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 120Engine Oil And Filter
Replacement (Synthetic oil) R R R R R R R R R R R R R R R R R R R R
Steering gear box, linkage and
boots I I I I I I I I I I I I I I I I I I I I
Drive shafts and boots I I I I I I I I I I I I I I I I I I I I
Vacuum Hose I I I I I I I I I I I I I I I I I I I I
All Latch, Hinges and Locks L L L L L L L L L L L L L L L L L L L L
Rotate tire or perform seasonal
tire change r r r r r r r r r r
Fuel Injector Cleaner * 1
A A A A A A A A A A

08
8-17
Maintenance Schedule (Smartstream G2.5 T-GDI) (CONT)R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateDESCRIPTIONKILOMETERS 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 120Brake Inspection (front disc/
pads & calipers
and rear disc/pads & calipers/shoes,
includes tire rotation)
Brake Service (includes parking
brake
inspection and tire rotation) I S I S I S I S I S
Brake Lines, Hoses and Connections I I I I I I I I I I
Battery Condition I I I I I I I I I I Suspension Mounting Bolts I I I I I I I I I I Air Conditioning Refrigerant I I I I I I I I I ICooling System Hoses and Connections I I I I I I I I I I
Exhaust Pipe and Muffler I I I I I I I I I I Air intake hose I I I I I I I I I I
Climate Control Air Filter R R R R R R R R R R

Maintenance
8-18
Maintenance Schedule (Smartstream G2.5 T-GDI) (CONT)R : Replace A : Add S : Service I : Inspect L : Lubricate r : RotateDESCRIPTIONKILOMETERS 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 120Fuel Tank, Fuel Filler Cap,
Canister, Vapor Hose I I I I I
Fuel Tank Air Filter I I I I I Fuel Filter I I I I I
Fuel Lines, Hoses and Connections I I I I I
Air Cleaner Filter I R I R I R I R I R Brake fluid I I R I I R I I R ISpark plugs Replace every 160,000 km or 84 months
Engine Coolant First, replace 192,000 km or 120 months.
After that, replace every 48,000 km or 24 months

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.

Maintenance
8-70
Cleaning the seat belt webbing
Clean the belt webbing with any
mild soap solution recommended for
cleaning upholstery or carpet. Follow
the instructions provided with the soap.
Do not bleach or re-dye the webbing
because this may weaken the seat belt.
Cleaning the interior window glass
If the interior glass surfaces of the
vehicle become hazy (that is, covered
with an oily, greasy or waxy film), they
should be cleaned with glass cleaner.
Follow the directions on the glass cleaner
container.
NOTICE
Do not scrape or scratch the inside of
the rear window. This may result in
damage to the rear window defroster grid.
EmiSSion ControL
SyStEm
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Service
Passport in your vehicle.
Your vehicle is equipped with an
emission control system to meet all
applicable emission regulations. There
are three emission control systems, as
follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to ensure the proper function
of the emission control systems, it
is recommended that you have your
vehicle inspected and maintained
by an authorized HYUNDAI dealer in
accordance with the maintenance schedule in this manual.
NOTICE
For the Inspection and Maintenance
Test (with Electronic Stability Control
(ESC) system) • To prevent the vehicle from misfiring
during dynamometer testing, turn
the Electronic Stability Control
(ESC) system off by pressing the ESC
switch (ESC OFF light illuminated).
• After dynamometer testing is
completed, turn the ESC system back
on by pressing the ESC switch again.

I
I-9
M Maintenance Services ............................................................................................ 8-5
Owner Maintenance Precautions ........................................................................ 8-5
Owner’s Responsibility ...................................................................................... 8-5
Manual Climate Control System ....................................................................... 5-105
Mirrors ................................................................................................................. 5-31
Inside Rearview Mirror .................................................................................... 5-31
Reverse Parking Aid Function ......................................................................... 5-41
Side View Mirrors ............................................................................................ 5-39
NNavigation-Based Smart Cruise Control ..........................................................6-122
System Setting and Operation ........................................................................ 6-123
OOwner Maintenance ............................................................................................... 8-6
Owner Maintenance Schedule ............................................................................ 8-6
PPanoramic Sunroof ............................................................................................. 5-46
Closing the Sunroof .......................................................................................... 5-48
Resetting the Sunroof ....................................................................................... 5-49
Sliding the Sunroof........................................................................................... 5-47
Sunroof Open Warning ..................................................................................... 5-49
Sunshade ........................................................................................................... 5-47
Tilting the Sunroof .......................................................................................... 5-47
R
Rear Cross-Traffic Collision Warning (RCCW) / Rear Cross-Traffic Collision-
Avoidance Assist (RCCA) ................................................................................ 6-138
Detecting Sensors ........................................................................................... 6-144
Limitations of the System .............................................................................. 6-145
System Description ........................................................................................ 6-138
System Setting and Activation ....................................................................... 6-139
Warning and System Control ......................................................................... 6-141
Rear View Monitor (RVM) .................................................................................. 5-73
Rear View Monitor - Top View ........................................................................ 5-73
Rear View Monitor with Parking Guidance .....................................................5-73

Index
I-10
Recommended Lubricants and Capacities ...........................................................2-14
Recommended SAE Viscosity Number ...........................................................2-15
Remote Smart Parking Assist (RSPA) ................................................................. 5-91
Additional Instructions ................................................................................... 5-100
Display Operation Status ................................................................................ 5-101
How Remote Smart Parking Assist System Works ..........................................5-95
How the Remote Moving Forward/Backward System Works .......................5-102
Operating Condition ......................................................................................... 5-92
Reporting Safety Defects ..................................................................................... 2-18
Reverse Parking Collision-Avoidance Assist .....................................................5-76
Detecting Sensor .............................................................................................. 5-79
Limitations of the System ................................................................................ 5-80
System Malfunction ......................................................................................... 5-80
System Setting and Operation .......................................................................... 5-76
Warning and System Control ........................................................................... 5-77
Reverse Parking Distance Warning (PDW) ........................................................5-82
Non-Operational Conditions of Reverse Parking Distance Warning System ..5-84
Operation of Reverse Parking Distance Warning System ................................5-82
Reverse Parking Distance Warning System Precautions.................................. 5-85
To Turn off Reverse Parking Distance Warning System .................................5-84
S
Safe Exit Warning (SEW) .................................................................................... 6-90
Function Malfunction and Limitations .............................................................6-94
Function Operation ........................................................................................... 6-92
Function Settings .............................................................................................. 6-91
Safety Messages..................................................................................................... 1-4 Scheduled Maintenance Services .......................................................................... 8-8
Maintenance Schedule (Smartstream G1.6 T-GDI) ...........................................8-8
Maintenance Schedule (Smartstream G2.5 GDI) .............................................8-12
Maintenance Schedule (Smartstream G2.5 T-GDI) .........................................8-16
Seat Belts ............................................................................................................. 3-19
Additional Seat Belt Safety Precautions ..........................................................3-26
Care of Seat Belts ............................................................................................. 3-28
Seat Belt Restraint System ............................................................................... 3-21
Seat Belt Safety Precautions ............................................................................ 3-19
Seat Belt Warning Light ................................................................................... 3-20