HYUNDAI SONATA 2021 Owners Manual

08
8-47
Low Aspect Ratio Tires
The aspect ratio is lower than 50 on
low aspect ratio tires.
Because low aspect ratio tires are
optimized for handling and braking,
their sidewall is a little stiffer than
a standard tire. Also low aspect
ratio tires tend to be wider and
consequently have a greater contact
patch with the road surface. In some
instances they may generate more
road noise compared with standard
tires.
CAUTION
Because the sidewall of a low
aspect ratio tire is shorter than
a standard tire, the rim of the
wheel and the tire itself is more
easily susceptible to damage. Use
caution when driving and follow the
guidelines below to help minimize
damage to the wheel and tire:
• When driving on a rough road
or off road, drive cautiously
because tires and wheels may
be damaged. And after driving,
inspect tires and wheels.
• When passing over a pothole,
speed bump, manhole, or curb
stone, drive slowly so that the
tires and wheels are not damaged.
• If the tire is subjected to a severe
impact, have the tire and wheel
inspected by an authorized
HYUNDAI dealer.
• Inspect the tire condition and
pressure every 1,800 miles
(3,000km).
CAUTION
• It is not easy to recognize tire
damage with your own eyes. But
if there is the slightest hint of tire
damage, have the tire checked or
replaced because the tire damage
may cause air leakage from the
tire.
• If the tire is damaged by driving
on a rough road, off road, pothole,
manhole, or curb stone, it will not
be covered by the warranty.

Maintenance8-48
■ Cartridge type
■ Blade type
■ Multi fuse Normal
Blown
Normal Blown
Normal Blown
OTM078035
A vehicle’s electrical system is protected
from electrical overload damage by
fuses.
This vehicle has 2 (or 3) fuse panels, one
located in the driver’s side panel bolster,
the other in the engine compartment
near the battery.
If any of your vehicle’s lights,
accessories, or controls do not work,
check the appropriate circuit fuse. If a
fuse has blown, the element inside the
fuse will be melted or broken.
If the electrical system does not work,
first check the driver’s side fuse panel.
Before replacing a blown fuse, turn the
engine and all switches off, and then
disconnect the negative battery cable.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this
indicates an electrical problem.
Avoid using the system involved and
immediately consult an authorized
HYUNDAI dealer.
WARNING
NEVER replace a fuse with anything but
another fuse of the same rating.
• A higher capacity fuse could cause
damage and possibly cause a fire.
• Do not install a wire or aluminum
foil instead of the proper fuse -
even as a temporary repair. It may
cause extensive wiring damage and
possibly a fire.
NOTICE
Do not use a screwdriver or any other
metal object to remove fuses because
it may cause a short circuit and damage
the system.
fuSES

08
8-49
Instrument Panel Fuse
Replacement
ODN8089015
1. Turn the engine off.
2.
T
urn all other switches OFF.
3.

Open the fuse panel co
ver.
4.
R

efer to the label on the inside of
the fuse panel cover to locate the
suspected fuse location.
ODN8089016
5. Pull the suspect ed fuse straight out.
Use the removal tool provided in the
engine compartment fuse panel.
6.

Check the r
emoved fuse; replace it if
it is blown. Spare fuses are provided in
the instrument panel fuse panels (or in
the engine compartment fuse panel).
7.
Push in a ne

w fuse of the same
rating, and make sure it fits tightly in
the clips. If it fits loosely, consult an
authorized HYUNDAI dealer.
In an emergency, if you do not have a
spare fuse, use a fuse of the same rating
from a circuit you may not need for
operating the vehicle.
If the headlamps or other electrical
components do not work and the fuses
are undamaged, check the fuse panel
in the engine compartment. If a fuse is
blown, it must be replaced with the same
rating.

Maintenance
8-50
Engine Compartment Panel Fuse
Replacement
„„Blade type fuse
ODN8089043
„„Cartridge type fuse
ODN8089019
1. Turn the engine off.
2.
T
urn all other switches OFF.
3.

R
emove the fuse panel cover by
pressing the tap and pulling up.
4.
Check the r

emoved fuse; replace it
if it is blown. To remove or insert the
fuse, use the fuse puller in the engine
compartment fuse panel.
5.

Push in a ne
w fuse of the same
rating, and make sure it fits tightly in
the clips. If it fits loosely, consult an
authorized HYUNDAI dealer.
CAUTION
After checking the fuse box in the
engine compartment securely close
the fuse box cover inside the engine
compartment, until it clicks.
If the fuse box is not closed properly,
water may leak in side, possibly causing
a malfunction with the electrical
system.
Multi fuse (Main fuse)
ODN8H089018
If the multi fuse is blown, it must be
removed as follows:
1.

T
urn off the engine.
2.

Disconnect the nega
tive battery
cable.
3.

R
emove the fuse panel cover by
pressing the tab and pulling it up.
4.
R

emove the nuts shown in the picture
above.
5.

R
eplace the fuse with a new one of
the same rating.
6.

R
einstall in the reverse order of
removal.
Information
If the multi fuse is blown, consult an
authorized HYUNDAI dealer.

08
8-51
Fuse/Relay Panel Description
Instrument panel fuse panel
ODN8089020
Inside the fuse/relay box cover, you can
find the fuse/relay label describing fuse/
relay names and ratings.
Information
Not all fuse panel descriptions in this
manual may be applicable to your vehicle;
the information is accurate at the time of
printing. When you inspect the fuse box on
your vehicle, refer to the fuse box label.
ODN8A089021

Maintenance
8-52
Instrument panel fuse panel
Fuse Name (A)Circuit Protected
S/HEATER (FRT) 25A Front Seat Warmer Control Module, Front Air Ventilation Seat
Control Module
TRUNK 10AICU Junction Block (Trunk Lid Relay)
DOOR LOCK 20AICU Junction Block (Door Lock Relay,
Door Unlock Relay, Two Turn Unlock Relay)
MODULE1 7.5A Key Solenoid
MODULE3 10ADriver Door Module, Passenger Seat Relax Unit,
Hazard Switch, Crash Pad Switch (Up),
Front Mood Lamp Unit, Start/stop Button Switch,
Driver/Passeger Smart Key Outside Handle
S/HEATER (RR) 25A Rear Seat Warmer Control Module
P/SEAT (PASS) 30APassenger Seat Manual Switch, Passenger Seat Relax Unit
MODULE6 10ADriver Door Module
SAFETY
P/WINDOW (RH) 30APassenger Safety Power Window Module,
Rear Power Window Switch RH
P/SEAT (DRV) 30ADirver Seat Manual Switch, Driver IMS Module
IBU1 15A IBU, Driver/Passenger Door NFC Module, IAU,
BLE Unit, Ignition Switch
AMP 25A AMP, DC-DC Converter (AMP)
SAFETY
P/WINDOW (LH) 30ADriver Safety Power Window Module,
Rear Power Window Switch LH
BRAKE SWITCH 10AIBU, Stop Lamp Switch
SUNROOF2 20APanorama Sunroof, Data Link Connector
AIR BAG2 10ASRS Contorl Module
AIR BAG1 15A SRS Contorl Module, Passenger Occupant Detection Sensor
E-SHIFTER1 10ASCU, Electronic ATM Shift Lever
MEMORY 10ADriver IMS Module, Security Indicator, A/C Switch,
Driver/Passenger Power Outside Mirror,
A/C Control Module, Instrument Cluster,
Rain Sensor, Head-Up Display

08
8-53
Driver’s side fuse panel
Fuse Name (A)Circuit Protected
MULTI MEDIA 15A Audio, A/V & Navigation Head Unit,
DC-DC Converter (AMP/Audio)
SUNROOF1 20APanorama Sunroof
MODULE7 10AFront Console Switch, Lane Keeping Assist Unit, IBU,
Crash Pad Switch (Up/Down),
Parking Collision Avodance Assist Unit,
Remote Control Smart Parking Assist Unit
MODULE5 10AStop Lamp Switch
MODULE8 10AFront Seat Warmer Control Module,
Front Air Ventilation Seat Control Module,
Passenger Seat Relax Unit, AMP,
Rear Seat Warmer Control Module, Driver IMS Module,
Audio, A/V & Navigation Head Unit
E-SHIFTER2 10ASCU, Electronic ATM Shift Lever
MODULE2 10AIAU, Parking Collision Avoidance Assist Unit,
Cooling Fan Motor, Passenger Seat Relax Unit,
Rear Seat Warmer Control Module
MDPS 7.5A MDPS Unit
A/C 7.5A A/C Control Module, A/C Switch,
E/R Junction Block (Blower Relay, PTC Heater Relay)
MODULE4 10AFront USB Charger, Rear USB Charger, AMP, IBU,
IAU, Parking Collision Avoidance Assist Unit, Audio,
DC-DC Converter (AMP/Audio), A/V & Navigation,
Head Unit, Surround View Monitor Unit
MODULE9 7.5A IBU
CLUSTER 10AInstrument Cluster, Head-Up Display
WASHER 15A Multifunction Switch
START 7.5APCM/ECM, E/R Junction Block (Start Relay),
ICU Junction Block (B/Alarm Relay)
POWER OUTLET 20AFront Power Outlet
IBU2 7.5A IBU
A/BAG IND 7.5A Instrument Cluster, Overhead Console Lamp (Lamp)

Maintenance
8-54
Engine compartment fuse panel
ODN8089017
Inside the fuse/relay box cover, you can
find the fuse/relay label describing fuse/
relay names and ratings.
Information
Not all fuse panel descriptions in this
manual may be applicable to your vehicle;
the information is accurate at the time of
printing. When you inspect the fuse panel
in your vehicle, refer to the fuse panel
label.
ODN8A089022

08
8-55
Engine compartment fuse panel
Fuse Name (A)Circuit Protected
MULTI
FUSE-1 IG2
30AE/R Junction Block (Start Relay), PCB Block (IG2 Relay)
BLOWER 40AE/R Junction Block (Blower Relay)
ABS1 40AESC Module
B+2 50AICU Junction Block (IPS4, IPS3, IPS1, Fuse - AMP, IBU1)
PTC HEATER 50AE/R Junction Block (PTC Heater Relay)
B+3 50AICU Junction Block (IPS5, IPS7, IPS9, IPS10, IPS8, IPS6)
OIL PUMP1 50AElectronic Oil Pump
COOLING FAN 80A
Cooling Fan Motor
MDPS 80AMDPS Unit
MULTI
FUSE-2 E-SHIFTER
30ASCU
E-CVVT1 40A[G4FN] CVVD ACTUATOR
[====] E/R Junction Block (E-CVVT Relay)
IG1 40APCB Block (IG1 Relay, ACC Relay)
REAR
HEATED 50A
E/R Junction Block (Rear Heated Relay)
EPB 60AESC Module
B+5 60APCB Block (Engine Control Relay, Fuse - A/C1,
WIPER1, TCU1, HORN, ECU2)
B+1 60AICU Junction Block (Fuse - P/SEAT (DRV),
P/SEAT (PASS), MODULE1, SAFETY P/WINDOW (LH),
SAFETY P/WINDOW (RH), S/HEATER (RR))

Maintenance
8-56
Engine compartment fuse panel
Fuse Name (A)Circuit Protected
FUSE HEATED
MIRROR 10ADriver/Passenger Power Outside Mirror, A/C Switch,
A/C Control Module, ECM
ECU5 10A[G4FN] ECM
AMS 10ABattery Sensor
FUEL PUMP 1 20AE/R Junction Block (Fuel Pump Relay)
A/C 2 10AA/C Control Module
B+4 60AICU Junction Block (Long Term Load Latch Relay,
Fuse - MODULE3, AIR BAG2, E-SHIFTER1, SUNROOF1,
SUNROOF2, S/HEATER (FRT), TRUNK, BRAKE SWITCH,
DOOR LOCK)