HYUNDAI SONATA HYBRID 2023 Service Manual

Vehicle Information
2-12
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 -20-10 010 20 30 4050
(°F) -10020 40 60 80 100120
Smartstream G2.0 GDi HEV
*10W-16
*1 : Requires grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated for severe maintenance condition.
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.

02
2-13
VEHICLE IDENTIFICATION
NUMBER (VIN)

Vehicle Information
2-14
TIRE SPECIFICATION AND
PRESSURE LABEL
ODN8H019025LODN8H019025L
The tires supplied on your new
vehicle are chosen to provide the best
performance for normal driving.
The tire label located on the driver’s
side center pillar gives the tire pressures
recommended for your car.
ENGINE NUMBER
ODN8H019022ODN8H019022
The engine number is stamped on the
engine block as shown in the drawing.
• When the engine cover is equipped :
Put a flashlight and reflection mirror
into the undercover hole to check the
engine number.
• When the engine cover is detached :
Check the engine number using a
reflection mirror.

02
2-15
This consumer information has been prepared in accordance with regulations issued
by the National Highway Traffic Safety Administration of the U.S. Department of
Transportation. Your HYUNDAI dealer will help answer any questions you may have as
you read this information.
HYUNDAI motor vehicles are designed and manufactured to meet or exceed all
applicable safety standards.
For your safety, however, we strongly urge you to read and follow all directions in
this Owner’s Manual, particularly the information under the headings “NOTICE”,
“CAUTION” and “WARNING”.
If, after reading this manual, you have any questions regarding the operation of your
vehicle, please contact the Hyundai Customer Care Center.
Hyundai Customer Care
P.O. Box 20850
Fountain Valley, CA 92728
800-633-5151
[email protected]
Hyundai’s Customer Care Center representatives are available Monday through Friday,
between the hours of 6:00 AM and 5:00 PM PST
and Saturday between 6:30 AM and 3:00 PM PST (English).
For Customer Care Center assistance in Spanish or Korean, representatives are
available Monday through Friday between 6:30 AM and 3:00 PM PST.
CONSUMER INFORMATION

Vehicle Information2-16
If you believe that your vehicle has a defect which could cause a crash or could cause
injury or death, you should immediately inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notifying HYUNDAI MOTOR AMERICA.
To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153);
go to http://www.safercar.gov;
download the SaferCar mobile application;
or write to: Administra tor, NHTSA
1200 New Jersey Ave, SE,
West Building Washington, D.C. 20590.
You can also obtain other information about motor vehicle safety from
http://www.safercar.gov.
If NHTSA receives similar complaints, it may open an investigation, and if it finds that a
safety defect exists in a group of vehicles, it may order a recall and remedy campaign.
However, NHTSA cannot become involved in individual problems between you, your
dealer, or HYUNDAI MOTOR AMERICA.
REPORTING SAFETY DEFECTS

Safety System
3. Seats & Safety System
Important Safety Precautions ........................................................................\
...3-2Always Wear Your Seat Belt ........................................................................\
.................3-2
Restrain All Children ........................................................................\
.............................3-2
Air Bag Hazards ........................................................................\
....................................3-2
Driver Distraction ........................................................................\
.................................3-2
Control Your Speed ........................................................................\
..............................3-2
Keep Your Vehicle in Safe Condition ........................................................................\
...3-2
Seats ........................................................................\
..........................................3-3Safety Precautions ........................................................................\
...............................3-4
Front Seats ........................................................................\
............................................3-5
Rear Seats ........................................................................\
...........................................3-10
Head Restraints ........................................................................\
...................................3-11
Seat Warmers and Air Ventilation Seats ....................................................................3-15
Seat Belts ........................................................................\
..................................3-19Seat Belt Safety Precautions ........................................................................\
.............3-19
Seat Belt Warning Light ........................................................................\
.....................3-20
Seat Belt Restraint System ........................................................................\
.................3-21
Additional Seat Belt Safety Precautions ...................................................................3-26
Care of Seat Belts ........................................................................\
...............................3-28
Child Restraint System (CRS) ........................................................................\
.3-29Children Always in the Rear ........................................................................\
...............3-29
Selecting a Child Restraint System (CRS) .................................................................3-30
Installing a Child Restraint System (CRS) ..................................................................3-31
Air Bag - Advanced Supplemental Restraint System ....................................3-37Where Are the Air Bags? ........................................................................\
....................3-39
How Does the Air Bag System Operate? ...................................................................3-42
What to Expect After an Air Bag Inflates .................................................................3-46
Occupant Classification System (OCS) .....................................................................3-47
Why Didn’t My Air Bag Go Off in a Collision? ...........................................................3-53
SRS Care ........................................................................\
.............................................3-57
Additional Safety Precautions
........................................................................\
...........3-58
Air Bag Warning Labels ........................................................................\
......................3-58
This chapter provides you with important information about how to protect yourself and your
passengers. It explains how to properly use your seats and seat belts, and how your air bags work.
Additionally, this chapter explains how to properly restrain infants and children in your vehicle.
3

Safety System
3-2
You will find many safety precautions
and recommendations throughout this
section, and throughout this manual.
The safety precautions in this section are
among the most important.
Always Wear Your Seat Belt
A seat belt is your best protection in all
types of accidents. Air bags are designed
to supplement seat belts, not replace
them. So even though your vehicle is
equipped with air bags, ALWAYS make
sure you and your passengers wear your
seat belts, and wear them properly.
Restrain All Children
All children under age 13 should ride
in your vehicle properly restrained in a
rear seat, not the front seat. Infants and
small children should be restrained in
an appropriate child restraint. Larger
children should use a booster seat with
the lap/shoulder belt until they can use
the seat belt properly without a booster
seat.
Air Bag Hazards
While air bags can save lives, they can
also cause serious or fatal injuries to
occupants who sit too close to them, or
who are not properly restrained. Infants,
young children, and shorter adults are at
the greatest risk of being injured by an
inflating air bag. Follow all instructions
and warnings in this manual.
Driver Distraction
Driver distraction presents a serious and
potentially deadly danger, especially for
inexperienced drivers. Safety should be
the first concern when behind the wheel,
and drivers need to be aware of the wide
array of potential distractions, such as
drowsiness, reaching for objects, eating,
personal grooming, other passengers,
and using cellular phones.Drivers can become distracted when
they take their eyes and attention off
the road or their hands off the wheel to
focus on activities other than driving. To
reduce your risk of distraction or getting
into an accident:
• ALWAYS set up your mobile devices
(for example, MP3 players, phones,
navigation units, etc.) when your
vehicle is parked or safely stopped.
• ONLY use your mobile device when
allowed by laws and when conditions
permit safe use. NEVER text or email
while driving. Most states have laws
prohibiting drivers from texting. Some
states and cities also prohibit drivers
from using handheld phones.
• NEVER let the use of a mobile device
distract you from driving. You have a
responsibility to your passengers and
others on the road to always drive
safely, with your hands on the wheel
as well as your eyes and attention on
the road.
Control Your Speed
Excessive speed is a major factor in crash
injuries and deaths. Generally, the higher
the speed, the greater the risk, but
serious injuries can also occur at lower
speeds. Never drive faster than is safe
for current conditions, regardless of the
maximum speed posted.
Keep Your Vehicle in Safe
Condition
Having a tire blowout or a mechanical
failure can be extremely hazardous. To
reduce the possibility of such problems,
check your tire pressures and condition
frequently, and perform all regularly
scheduled maintenance.
IMPORTANT SAFETY PRECAUTIONS

3-3
03
Front seats
(1) Forward and rearward
(2) Seatback angle
(3) Seat height
(4) Seat cushion angle
(5) Lumbar supportRear seats
(6) Armrest
(7) Seatback folding
SEATS
■
Driver's Side
• Manual• Manual
■ Passenger's Side
• Manual• Manual
• Power• Power• Power• Power
The actual feature in the vehicle may differ from the illustration.ODN8A039001ODN8A039001

Safety System
3-4
Safety Precautions
Adjusting the seats so that you are sitting
in a safe, comfortable position plays an
important role in driver and passenger
safety together with the seat belts and
air bags in an accident.
WARNING
Do not use a cushion that reduces
friction between the seat and the
passenger. The passenger’s hips may
slide under the lap portion of the seat
belt during an accident or a sudden
stop. Serious or fatal internal injuries
could result because the seat belt
cannot operate properly.
Air bags
You can take steps to reduce the risk
of being injured by an inflating air bag.
Sitting too close to an air bag greatly
increases the risk of injury in the event
the air bag inflates.
The National Highway Traffic Safety
Administration (NHTSA) recommends
that drivers allow at least 10 inches (25
cm) between the center of the steering
wheel and their chest.
WARNING
To reduce the risk of serious injury or
death from an inflating air bag, take the
following precautions:
• Adjust the driver’s seat as far to the
rear as possible while maintaining
the ability to maintain full control of
the vehicle.
• Adjust the front passenger seat as far
to the rear as possible.
• Hold the steering wheel by the rim
with your hands at the 9 o’clock and
3 o’clock positions to minimize the
risk of injuries to your hands and
arms.
• NEVER place anything or anyone
between the steering wheel and the
air bag.
• Do not allow the front passenger to
place feet or legs on the dashboard
to minimize the risk of leg injuries.
Seat belts
Always fasten your seat belt before
starting any trip.
At all times, passengers should sit
upright and be properly restrained.
Infants and small children must be
restrained in appropriate child restraint
systems. Adults and children who
have outgrown a booster seat must be
restrained using the seat belts.
WARNING
Take the following precautions when
adjusting your seat belt:
• NEVER use one seat belt for more
than one occupant.
• Always position the seatback upright
with the lap portion of the seat belt
snug and low across the hips.
• NEVER allow children or small infants
to ride on a passenger’s lap.
• Do not route the seat belt across your
neck, across sharp edges, or reroute
the shoulder strap away from your
body.
• Do not allow the seat belt to become
caught or jammed.

03
3-5
Front Seats
WARNING
Take the following precautions when
adjusting your seat:
• NEVER attempt to adjust the seat
while the vehicle is moving. The seat
could respond with unexpected
movement and may cause loss
of vehicle control resulting in an
accident.
• Do not place anything under the
front seats. Loose objects in the
driver’s foot area could interfere
with the operation of the foot pedals,
causing an accident.
• Do not allow anything to interfere
with the normal position and proper
locking of the seatback.
• Do not place a cigarette lighter on
the floor or seat. When you operate
the seat, gas may exit out of the
lighter causing a fire.
• Use extreme caution when picking
up small objects trapped under the
seats or between the seat and the
center console. Your hands might be
cut or injured by the sharp edges of
the seat mechanism.
• If there are occupants in the rear
seats, be careful while adjusting the
front seat position.
• Make sure that the seat is locked in
place after the adjustment. If not,
the seat might move unexpectedly
resulting in an accident.
CAUTION
To prevent injury:
• Do not adjust your seat while
wearing your seat belt. Moving the
seat cushion forward may cause
strong pressure on your abdomen.
• Do not allow your hands or fingers to
get caught in the seat mechanisms
while the seat is moving.
Manual adjustment (if equipped)
The front seat can be adjusted by using
the levers located on the outside of
the seat cushion. Before driving, adjust
the seat to the proper position so that
you can easily control the steering
wheel, foot pedals and controls on the
instrument panel.
ODN8039002ODN8039002
Forward and rearward adjustment
To move the seat forward or rearward:
1. Pull up the seat slide adjustment lever
and hold it.
2. Slide the seat to the position you
desire.
3. Release the lever and make sure the
seat is locked in place. Move forward
and rearward without using the lever.
If the seat moves, it is not locked
properly.