2023 HYUNDAI SONATA Lug

01
1-5
Your new vehicle is designed to obtain
maximum performance with UNLEADED
FUEL, as well as minimize exhaust
emissions and spark plug fouling.
Your new vehicle is designed to use only
unleaded fuel having an octane number
((R+M)/2) of 87 (Research Octane
Number 91) or higher. (Do not use
methanol blended fuels)
NOTICE
To prevent damage to the engine and
engine components, never add any fuel
system cleaning agents to the fuel tank
other than what has been specified.
Consult an authorized HYUNDAI dealer
for additional information.
WARNING

02
2-11
BulB wattagE
Light bulbBulb type Wattage
FrontHeadlamp (High/Low) LED LED
Daytime running lamp (DRL)/ Position lamp LED LED
Turn signal lamp LED LED
Side repeater lamp (Outside mirror) LED LED
Rear Stop lamp
Bulb type PY21W 21
LED type LED LED
Tail lamp LED LED
Turn signal lamp LED LED
Reverse lamp W16W 16
High mounted stop lamp LED LED License plate lamp W5W 5
Interior Map lamp
Type A WEDGE 10
Type B LED LED
Personal lamp (if equipped) LED LED Room lamp (if equipped) FESTOON 10 Vanity mirror lamp FESTOON 5
Luggage compartment lamp FESTOON 5

Vehicle Information and Reporting Safety Defects
2-12
tirEs anD whEEls
Item Tire SizeWheel
Size Inflation pressure kPa (psi)
Wheel
lug nut torque kgf·m
(lbf·ft, N·m)
Normal load
*1
Maximum load
Front RearFront Rear
Full size tire 205/65 R16 6.5Jx16 240 (35) 240 (35) 240 (35) 240 (35)
11~13
(79~94,
107~127)
215/55 R17 7.0Jx17 240 (35) 240 (35) 240 (35) 240 (35)
235/45 R18 7.5Jx18 240 (35) 240 (35) 240 (35) 240 (35)
245/40 R19 8.0JX19 240 (35) 240 (35) 240 (35) 240 (35)
Compact
spare tire
(if equipped) T125/80 D16 4Tx16 420 (60) 420 (60) 420 (60) 420 (60)
T135/80 D17 4Tx17 420 (60) 420 (60) 420 (60) 420 (60)
T135/80 D18 4Tx18 420 (60) 420 (60) 420 (60) 420 (60)
*1 : Normal load: Up to 3 persons
NOTICE
• It is permissible to add 20 kPa (3 psi) to the standard tire pressure specification if
colder temperatures are expected soon. Tires typically lose 7 kPa (1 psi) for every
7°C (12°F) temperature drop. If extreme temperature variations are expected,
recheck your tire pressure as necessary to keep them properly inflated.
• Tire inflation pressures will vary with changes in elevation. If driving in areas of
higher or lower elevation, be sure to check and adjust for proper tire inflation.
CAUTION
• When replacing tires, use the same size originally supplied with the vehicle.
Using tires of a different size can damage the related parts or not work properly.
• When replacing tires, ALWAYS use the same size, type, construction and tread
pattern supplied with the vehicle for all tires.

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volumE anD wEight
ItemsSmartstream
G1.6 T-GDi Smartstream
G2.5 GDi Smartstream
G2.5 T-GDI
Gross vehicle weight
kg (lbs.)1,975 (4,354) 2,055 (4,530)
Luggage volume (SAE) ℓ (cu ft) 453 (16)
A/T : Automatic Transmission
air ConDitioning systEm
Item Weight of Volume Classification
Refrigerant g (oz.) Smartstream G1.6 T-GDi 500±25 (17.6±0.88) R-1234yf
Smartstream G2.5 GDi 520±25 (18.3±0.88) R-1234yf
Compressor lubricant g (oz.) 80±10 (32.8±0.35) PAG (FD46XG)
Contact an authorized HYUNDAI dealer for more details.

02
2-15
Recommended SAE Viscosity Number
CAUTION
Always be sure to clean the area around
any filler plug, drain plug, or dipstick
before checking or draining any
lubricant. This is especially important
in dusty or sandy areas and when the
vehicle is used on unpaved roads.
Cleaning the plug and dipstick areas
will prevent dirt and grit from entering
the engine and other mechanisms that
could be damaged. Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operating (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and
cold weather performance, however,
higher viscosity engine oils are required
for satisfactory lubrication in hot
weather.
Using oils of any viscosity other than
those recommended could result in engine damage. When choosing an oil, consider the
range of temperature your vehicle will be
operated in before the next oil change.
Proceed to select the recommended oil
viscosity from the chart.
Temperature Range for SAE Viscosity Numbers
Temperature °C
-30-20 -10 0 10 20 30 40 50
(°F) -100 20 40 60 80 100 120
Engine Oil * 1Smartstream
G1.6 T-GDI
Smartstream G2.5 GDI
Smartstream G2.5 T-GDI
0W-30
0W-20
* 1
: Requires grade engine oil.
An engine oil displaying this American Petroleum Institute(API) Certification
Mark conforms to the International Lubricant Specification Advisory Committee
(ILSAC). It is recommended to only use engine oils that uphold this API
Certification Mark.

Seats & Safety System
3-10
Rear Seats
Folding the rear seat
The rear seatbacks can be folded to
facilitate carrying long items or to
increase the luggage capacity of the
vehicle.
WARNING
• Never allow passengers to sit on top
of the folded down seatback while
the vehicle is moving. This is not a
proper seating position and no seat
belts are available for use. This could
result in serious injury or death in
case of an accident or sudden stop.
• Objects carried on the folded down
seatback should not extend higher
than the top of the front seatbacks.
This could allow cargo to slide
forward and cause injury or damage
during sudden stops.
To fold down the rear seatback:
1. Set the front seatback to the upright position and if necessary, slide the
front seat forward.
ODN8039062L
2. Lower the rear head restraints to the lowest position by pushing and
holding the release button and
pushing down on the head restraint.
ODN8039063L
3. Pull on the seatback folding lever located in the trunk.
ODN8039064L
4. Fold the seatback toward the front of
the vehicle.
5. To use the rear seat, lift and pull the seatback rearward. Pull the seatback
firmly until it clicks into place. Make
sure the seatback is locked in place.

04
4-5
Tachometer
„„Type C
„
„Type D
OLX2048105/ODN8049005
OCN7040007
„
„Type A, B
The tachometer indicates the
approximate number of engine
revolutions per minute (RPM).
Use the tachometer to select the correct
shift points and to prevent lugging and/
or over-revving the engine.
NOTICE
Do not operate the engine within the
tachometer's RED ZONE. This may
cause severe engine damage. Engine coolant temperature gauge
„„Type A, B
ODN8A049041
„„Type C
ODN8A049006
„„Type D
OCN7040009
This gauge indicates the temperature
of the engine coolant when the ignition
switch is in the ON position.

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5-67
NOTICE
If the driver exits the vehicle through
another door besides the driver
door, the battery saver function
does not operate and the headlamp
delay function does not turn OFF
automatically.
This may cause the battery to
discharge. To avoid battery discharge,
turn OFF the headlamps manually from
the headlamp switch before exiting the
vehicle.
Headlamp leveling device
It automatically adjusts the headlamp
beam level according to the number of
passengers and loading weight in the
luggage area.
And it offers proper headlamp beam
under various conditions.
WARNING
If the function does not work properly,
have the vehicle inspected by an
authorized HYUNDAI dealer. Do not
attempt to inspect or replace the wiring
yourself.
Interior Lights
WARNING
Do not use the interior lights when
driving in the dark. The interior lights
may obscure your view and cause an
accident.
NOTICE
Do not use the interior lights for
extended periods when the vehicle is
turned off or the battery will discharge.
Interior lamp AUTO cut
The interior lamps will automatically go
off approximately 20 minutes after the
engine is turned off and the doors are closed. If a door is opened, the lamp
will go off 40 minutes after the engine is
turned off. If the doors are locked by the
remote key or smart key and the vehicle
enters the armed stage of the theft
alarm system, the lamps will go off five
seconds later.