2023 HYUNDAI SONATA ABS

08
8-57
Engine compartment fuse panel
Fuse Name (A) Circuit Protected
MULTI FUSE-1 IG2 30A
E/R Junction Block (Start Relay), PCB Block
(IG2 Relay)
BLOWER 40A E/R Junction Block (Blower Relay) ABS1 40A ESC Module
B+2 50A ICU Junction Block (IPS4, IPS3, IPS1, Fuse -
AMP, IBU1)
PTC HEATER 50A E/R Junction Block (PTC Heater Relay)
B+3 50A ICU Junction Block (IPS5, IPS7, IPS9, IPS10, IPS8, IPS6)
OIL PUMP1 50A Electronic Oil Pump
COOLING FAN 80A Cooling Fan Motor MDPS 80A MDPS Unit
MULTI FUSE-2 E-SHIFTER 30A SCU
E-CVVT1 40A [G4FN] CVVD ACTUATOR
[====] E/R Junction Block (E-CVVT Relay)
IG1 40A PCB Block (IG1 Relay, ACC Relay)
REAR HEATED 50A E/R Junction Block (Rear Heated Relay)
EPB 60A ESC Module
B+5 60A PCB Block (Engine Control Relay, Fuse - A/C1,
WIPER1, TCU1, HORN, ECU2)
B+1 60A ICU Junction Block (Fuse - P/SEAT (DRV), P/
SEAT (PASS), MODULE1, SAFETY P/WINDOW
(LH), SAFETY P/WINDOW (RH), S/HEATER
(RR))
FUSE HEATED
MIRROR 10A Driver/Passenger Power Outside Mirror, A/C
Switch, A/C Control Module, ECM
ECU5 10A [G4FN] ECM AMS 10A Battery Sensor
FUEL PUMP 1 20A E/R Junction Block (Fuel Pump Relay) A/C 2 10A A/C Control Module
B+4 60A ICU Junction Block (Long Term Load
Latch Relay, Fuse - MODULE3, AIR BAG2,
E-SHIFTER1, SUNROOF1, SUNROOF2, S/
HEATER (FRT), TRUNK, BRAKE SWITCH, DOOR
LOCK)

Maintenance
8-60
ODN8A089063
Stop lamp (Bulb)
1. Open trunk lid and disconnect the negative battery cable.
2. Remove the luggage side trim.
ODN8089032
3. Remove the socket from the assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on the
assembly.
4. Remove the bulb from the socket
by pressing it in and rotating it
counterclockwise until the tabs on the
bulb align with the slots in the socket.
Pull the bulb out of the socket.
5. Insert a new bulb by inserting it into the socket and rotating it until it locks
into place.
6. Install the socket in the assembly by aligning the tabs on the socket with
the slots in the assembly. Push the
socket into the assembly and turn the
socket clockwise.
Stop/Taill/Backup lamp and rear side
marker (LED type)
If the LED lamp does not operate, have
the vehicle checked by an authorized
HYUNDAI dealer.
Reverse lamp (bulb type)
ODN8089051L
1. Disconnect the negative battery cable.
2. Remove the side under cover.
3. Remove the socket from the assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on the
assembly.
4. Remove the bulb from the socket by
pulling it straight out.
5. Insert a new bulb by pushing it in into the socket.
6. Install the socket into the assembly by aligning the tabs on the socket with
the slots in the assembly. Push the
socket into the assembly and turn the
socket clockwise.
7. Reinstall the lamp assembly to the
body of the vehicle.

Maintenance
8-62
Interior Light Bulb Replacement
Map lamp, Room lamp, Vanity mirror lamp and trunk lamp (Bulb type)
„„Map lamp
ODN8A089035
„„Room lamp • Without sunroof
ODN8089036
„„Vanity mirror lamp
OJS078041
„„Trunk lamp
ODN8089037
1. Using a flat-blade screwdriver, gently pry the lens from the interior lamp housing.
2. Remove the bulb by pulling it straight out.
WARNING
Prior to working on the Interior Lights, ensure that the “OFF” button is depressed to
avoid burning your fingers or receiving an electric shock.
3. Install a new bulb in the socket.
4. Align the lens tabs with the interior lamp housing notches and snap the lens into place.
NOTICE
Use care not to dirty or damage lens, lens tab, and plastic housings.

08
8-69
NOTICE
Using anything but recommended
cleaners and procedures may affect the
fabric’s appearance and fire-resistant
properties.
Leather (if equipped)
• Features of seat leather
- Leather is made from the outer skin of an animal, which goes through a
special process to be available for
use. Since it is a natural product,
each part differs in thickness or
density.
Wrinkles may appear as a natural
result of stretching and shrinking
depending on the temperature and
humidity.
- The seat is made of stretchable fabric to improve comfort.
- The parts contacting the body are curved and the side supporting
area is high which provides driving
comfort and stability.
- Wrinkles may appear naturally from usage. It is not a fault of the
products.
CAUTION
• Wrinkles or abrasions which appear
naturally from usage are not covered
by warranty.
• Belts with metallic accessories,
zippers or keys inside the back
pocket may damage the seat fabric.
• Make sure not to wet the seat. It may
change the nature of natural leather.
• Jeans or clothes which could bleach
may contaminate the surface of the
seat covering fabric. •
Caring for the leather seats
- Vacuum the seat periodically to remove dust and sand on the seat. It
will prevent abrasion or damage of
the leather and maintain its quality.
- Wipe the natural leather seat cover often with dry or soft cloth.
- Use of proper leather protector may prevent abrasion of the cover and
helps maintain the color. Be sure to
read the instructions and consult
a specialist when using leather
coating or protective agent.
- Light colored (beige, cream beige) leather is easily contaminated and
the stain is noticeable. Clean the
seats frequently.
- Avoid wiping with wet cloth. It may cause the surface to crack.
• Cleaning the leather seats
- Remove all contaminations instantly. Refer to instructions below
for removal of each contaminant.
- Cosmetic products (sunscreen, foundation, etc.)
Apply cleansing cream on a cloth
and wipe the contaminated spot.
Wipe off the cream with a wet cloth
and remove water with a dry cloth.
- Beverages (coffee, soft drink, etc.) Apply a small amount of neutral
detergent and wipe until
contaminations do not smear.
- Oil Remove oil instantly with
absorbable cloth and wipe with
stain remover used only for natural
leather.
- Chewing gum Harden the gum with ice and
remove gradually.

08
8-71
1. Crankcase Emission Control System
The positive crankcase ventilation system
is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.
2. Evaporative Emission Control System Including Onboard
Refueling Vapor Recovery
(ORVR)
The Evaporative Emission Control System
is designed to prevent fuel vapors from
escaping into the atmosphere. The
ORVR system is designed to allow the
vapors from the fuel tank to be loaded
into a canister while refueling at the gas
station, preventing the escape of fuel
vapors into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve
is controlled by the Engine Control
Module (ECM); when the engine coolant
temperature is low during idling, the
PCSV closes so that evaporated fuel
is not taken into the engine. After the
engine warms-up during ordinary
driving, the PCSV opens to introduce
evaporated fuel to the engine.
3. Exhaust Emission Control System
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
When the engine starts or fails to start,
excessive attempts to restart the engine
may cause damage to the emission
system.
Engine exhaust (carbon monoxide)
precautions • Carbon monoxide can be present
with other exhaust fumes. If you smell
exhaust fumes of any kind in your
vehicle, drive with all the windows
fully open. Have your vehicle checked
and repaired immediately.
WARNING
Engine exhaust gases contain carbon
monoxide (CO). Though colorless and
odorless, it is dangerous and could be
lethal if inhaled. Follow the instructions
on this page to avoid CO poisoning.

I
I-3
B
Basic Troubleshooting Guide .............................................................................. 7-20
Battery ................................................................................................................. 8-36
Battery Recharging ........................................................................................... 8-37
For Best Battery Service .................................................................................. 8-36
Reset Features .................................................................................................. 8-37
Before Driving ....................................................................................................... 6-5
Before Entering the Vehicle ............................................................................... 6-5
Before Starting ................................................................................................... 6-5
Blind View Monitor (BVM) ............................................................................. 6-104
Blind-Spot Collision Warning (BCW) /
Blind-Spot Collision-Avoidance Assist (BCA) ...................................................6-77
Detecting Sensors (Front View Camera and Rear Corner Radar) ....................6-82
Limitations of the System ................................................................................ 6-85
System Description .......................................................................................... 6-77
System Setting and Activation ......................................................................... 6-78
Warning and System Control ........................................................................... 6-80
Brake Fluid .......................................................................................................... 8-29
Checking the Brake Fluid Level ....................................................................... 8-29
Brake System ....................................................................................................... 6-30
Anti-Lock Brake System (ABS) ...................................................................... 6-37
Auto Hold ......................................................................................................... 6-34
Disc Brakes Wear Indicator .............................................................................. 6-30
Electronic Parking Brake (EPB) ...................................................................... 6-31
Electronic Stability Control (ESC) ................................................................... 6-39
Good Braking Practices .................................................................................... 6-42
Hill-Start Assist Control (HAC) ....................................................................... 6-42
Power Brakes .................................................................................................... 6-30
Vehicle Stability Management (VSM) .............................................................6-41
Bulb Wattage ........................................................................................................ 2-11
C Child Restraint System (CRS) ............................................................................. 3-29
Children Always in the Rear ............................................................................ 3-29
Installing a Child Restraint System (CRS) .......................................................3-31
Selecting a Child Restraint System (CRS) .......................................................3-30
Climate Control Additional Features ................................................................. 5-130
Automatic Ventilation .................................................................................... 5-130
Sunroof Inside Air Recirculation ................................................................... 5-130