engine oil HYUNDAI SONATA 2021 Owner's Manual

Maintenance
8-24
Checking the Brake Fluid Level
ODN8089005
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the side
of the reservoir.
Before removing the reservoir cap and
adding brake fluid, clean the area around
the reservoir cap thoroughly to prevent
brake fluid contamination.
If the level is low, add the specified brake
fluid to the MAX level. The level will fall
with accumulated mileage. This is a
normal condition associated with the
wear of the brake linings. If the fluid level
is excessively low, have the brake system
checked by an authorized HYUNDAI
dealer.
WARNING
If the brake system requires frequent
additions of fluid this could indicate
a leak in the brake system. Have the
vehicle inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come in
contact with your eyes. If brake fluid
comes in contact with your eyes, flush
your eyes with clean water for at least
15 minutes and get immediate medical
attention.
NOTICE
• Do not allow brake fluid to contact
the vehicle’s body paint, as paint
damage will result.
• Brake fluid, which has been exposed
to open air for an extended time
should NEVER be used as its quality
cannot be guaranteed. It should be
disposed of properly.
• Do not use the wrong kind of brake
fluid. A few drops of mineral based
oil, such as engine oil, in your brake
system can damage brake system
parts.
Information
Use only the specified brake fluid (refer
to “Recommended Lubricants and
Capacities” in chapter 2).
BraKE fluid

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
8-55
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
8-64
ODN8A089039
NOTICE
• Water washing in the engine
compartment including high
pressure water washing may cause
the failure of electrical circuits
located in the engine compartment.
• Never allow water or other liquids
to come in contact with electrical/
electronic components inside the
vehicle as this may damage them.
NOTICE
Matte paint finish vehicle (if equipped)
Automatic car wash which uses rotating
brushes should not be used as this can
damage the surface of your vehicle. A
steam cleaner which washes the vehicle
surface at high temperature may cause
oil to adhere and leave stains that is
difficult to remove.
Use a soft cloth (e.g. microfiber towel
or sponge) when washing your vehicle
and dry with a microfiber towel. When
you hand wash your vehicle, you should
not use a cleaner that finishes with wax.
If the vehicle surface is too dirty (sand,
dirt, dust, contaminant, etc.), clean the
surface with water before washing the
car.
Waxing
A good coat of wax provides a barrier
between your paint and environmental
contamination.
Keeping a good coat of wax on your
vehicle will help protect it.
Wax the vehicle when water will no
longer bead on the paint.
Always wash and dry the vehicle before
waxing. Use a good quality liquid or
paste wax, and follow the manufacturer’s
instructions. Wax all metal trim to protect
it and to maintain its luster.
Removing oil, tar, and similar materials
with a spot remover will usually strip the
wax from the finish. Be sure to re-wax
these areas even if the rest of the vehicle
does not yet need waxing.
NOTICE
• Wiping dust or dirt off the body with
a dry cloth will scratch the finish.
• Do not use steel wool, abrasive
cleaners, or strong detergents
containing highly alkaline or
caustic agents on chrome-plated or
anodized aluminum parts. This may
result in damage to the protective
coating and cause discoloration or
paint deterioration.
NOTICE
Matte paint finish vehicle (if equipped)
Do not use any polish protector such as
a detergent, an abrasive and a polish.
In case wax is applied, remove the wax
immediately using a silicon remover
and if any tar or tar contaminant is on
the surface use a tar remover to clean.
However, be careful not to apply too
much pressure on the painted area.

Index
I-6
Emission control system ........................................................................\
.............. 8-69
Crankcase emission control system

................................................................ 8-70
Evaporative emission control System


.............................................................8-70
Exhaust emission control system
.................................................................... 8-70
Engine compartment


........................................................................\
.............. 2-6, 8-3
Engine compartment panel fuse replacement


......................................................8-50
Engine coolant


........................................................................\
............................. 8-21
Engine coolant temperature gauge........................................................................\
. 4-4
Engine number


........................................................................\
............................. 2-14
Engine oil


........................................................................\
..................................... 8-19
Engine specification........................................................................\
....................... 2-7
Engine Start/Stop button


........................................................................\
................ 6-9
Evaporative emission control System


.................................................................. 8-70
Event Data Recorder (EDR)


........................................................................\
.......... 1-8
Exhaust emission control system


........................................................................\
. 8-70
Explanation of scheduled maintenance items


......................................................8-16
Exterior care........................................................................\
................................. 8-63
Exterior features........................................................................\
........................... 5-64 Hood
........................................................................\
........................................ 5-64
Trunk

........................................................................\
....................................... 5-65
Emer

gency trunk safety release....................................................................... 5-66
Fuel Filler Door


........................................................................\
....................... 5-70
Exterior overview Front view
........................................................................\
................................. 2-2
Rear view


........................................................................\
.................................. 2-3
F
Flat tire


........................................................................\
......................................... 7-12
Changing spare tire


........................................................................\
................ 7-12
Floor mat anchor(s)........................................................................\
.................... 5-151
Fluid Brake fluid


........................................................................\
............................... 8-24
Washer fluid


........................................................................\
............................ 8-25
Forward Collision-Avoidance Assist (FCA)


.......................................................6-40
FCA-Junction Turning function


...................................................................... 6-55
Forward/Reverse Parking Distance Warning (PDW)
..........................................5-99

Index
I-12
Manual climate control system ........................................................................\
.. 5-118
Heating and air conditioning

........................................................................\
. 5-119
Mode selection


........................................................................\
...................... 5-120
Instrument panel vents


........................................................................\
.......... 5-122
Temperature control


........................................................................\
.............. 5-122
Air intake control


........................................................................\
.................. 5-122
Fan speed control


........................................................................\
.................. 5-123
Air conditioning


........................................................................\
.................... 5-123
System operation


........................................................................\
................... 5-124
System maintenance


........................................................................\
.............. 5-125
Air conditioning refrigerant label.................................................................. 5-126
Mirrors
........................................................................\
......................................... 5-46
Inside rearview mirror


........................................................................\
............. 5-46
HomeLink
® system........................................................................\
.................. 5-47
Side view mirrors

........................................................................\
.................... 5-53
Adjusting the side view mirrors


...................................................................... 5-54
Folding the side view mirrors


........................................................................\
. 5-54
Reverse parking aid function


........................................................................\
.. 5-55
N
Navigation-based Smart Cruise Control (NSCC)


..............................................6-112
O
Occupant Classification System (OCS)


............................................................... 3-47
Odometer
........................................................................\
....................................... 4-5
Oil (Engine)


........................................................................\
................................. 8-19
Outside temperature gauge


........................................................................\
............ 4-5
Owner maintenance


........................................................................\
....................... 8-5
P
Panoramic sunroof
........................................................................\
....................... 5-60
Parking lamp position


........................................................................\
.................. 5-75
Passenger’s front air bag


........................................................................\
.............. 3-39
Power brakes

........................................................................\
................................ 6-20
Power outlet
........................................................................\
............................... 5-146
Power window lock switch

........................................................................\
.......... 5-59
Pre-tensioner seat belt


........................................................................\
.................. 3-24
Retractor pretensioner


........................................................................\
............. 3-24

I
I-17
V
Vanity mirror lamp

........................................................................\
....................... 5-82
Vehicle break-in process


........................................................................\
................ 1-7
Vehicle certification label


........................................................................\
............ 2-13
Vehicle identification number (VIN)


................................................................... 2-13
Vehicle load limit


........................................................................\
....................... 6-146
Tire loading information label


....................................................................... 6-146
Vehicle modification


........................................................................\
...................... 1-7
Vehicle Stability Management (VSM)................................................................. 6-31
Vehicle weight and luggage volume


.................................................................... 2-10
W
Warning and indicator lights


........................................................................\
.......... 4-7
Air bag warning light


........................................................................\
................ 4-7
Seat belt warning light


........................................................................\
.............. 4-7
Parking brake & brake fluid warning light


.......................................................4-8
Anti-lock Brake System (ABS) warning light
.................................................. 4-9
Electronic brake force distribution (EBD) system warning light
...................... 4-9
Electric Power Steering (EPS) warning light


....................................................4-9
AUTO HOLD indicator light


........................................................................\
.. 4-10
Electric Power Steering (EPS) warning light


..................................................4-10
Malfunction Indicator lamp (MIL).................................................................. 4-10
Charging system warning light


...................................................................... 4-11
Engine oil pressure warning light


.................................................................. 4-11
Low fuel level warning light


........................................................................\
.. 4-11
Master warning light


........................................................................\
............... 4-11
Low tire pressure warning light


...................................................................... 4-11
Electronic stability control (ESC) indicator light............................................ 4-11
Electronic stability control (ESC) OFF indicator light
................................... 4-13
Immobilizer indicator light


........................................................................\
..... 4-13
Turn signal indicator light


........................................................................\
....... 4-14
Headlamp warning light
........................................................................\
.......... 4-14
High beam indicator light........................................................................\
........ 4-14
High Beam

Assist (HBA) indicator light
........................................................ 4-14
Light ON indicator light


........................................................................\
.......... 4-14
Forward Collision-Avoidance Assist warning light
........................................4-15
Lane Keeping Assist indicator light


................................................................ 4-15
Washer fluid


........................................................................\
................................. 8-25