2021 HYUNDAI SONATA HYBRID seats

Safety System
3-18
NOTICE
To prevent damage to the air ventilation
seat:
• Use the air ventilation seat ONLY
when the climate control system
is on. Using the air ventilation seat
for prolonged periods of time with
the climate control system off could
cause the air ventilation seat to
malfunction.
• NEVER use a solvent such as paint
thinner, benzene, alcohol or gasoline
to clean the seats.
• Avoid spilling liquids on the surface
of the front seats and seatbacks;
this may cause the air vent holes
to become blocked and not work
properly.
• Do not place materials such as
plastic bags or newspapers under
the seats. They may block the air
intake causing the air vents to not
work properly.
• Do not change the seat covers. It may
damage the air ventilation seat.
• If the air vents do not operate, restart
the vehicle. If there is no change,
have the vehicle inspected by an
authorized HYUNDAI dealer.

03
3-19
SEAT BELTS
This section describes how to use the
seat belts properly. It also describes
some of the things to avoid when using
seat belts.
Seat Belt Safety Precautions
Always fasten your seat belt and make
sure all passengers have fastened their
seat belts before starting any trip. Air
bags are designed to supplement the
seat belt as an additional safety device,
but they are not a substitute. Most states
require all occupants of a vehicle to wear
seat belts.
WARNING
Seat belts must be used by ALL
passengers whenever the vehicle is
moving. Take the following precautions
when adjusting and wearing seat belts:
• ALWAYS properly restrain children
under age 13 in the rear seats.
• NEVER allow children to ride in the
front passenger seat. If a child age 13
or older must be seated in the front
seat, move the seat as far back as
possible and properly restrain them
in the seat.
• NEVER allow an infant or child to be
carried on an occupant’s lap.
• NEVER ride with the seatback
reclined when the vehicle is moving.
• Do not allow children to share a seat
or seat belt.
• Do not wear the shoulder belt under
your arm or behind your back.
• Always wear both the shoulder
portion and lap portion of the lap/
shoulder belt.
• Do not use the seat belt if it is
twisted. A twisted seat belt will not
protect you properly in an accident.
• Do not use a seat belt if the webbing
or hardware is damaged. •
Do not latch the seat belt into the
buckles of other seats.
• NEVER unfasten the seat belt
while driving. This may cause loss
of vehicle control resulting in an
accident.
• Make sure there is nothing in the
buckle interfering with the seat belt
latch mechanism. This may prevent
the seat belt from fastening securely.
• No modifications or additions
should be made by the user which
will either prevent the seat belt
adjusting devices from operating to
remove slack, or prevent the seat
belt assembly from being adjusted to
remove slack.
WARNING
Damaged seat belts and seat belt
assemblies will not operate properly.
Always replace:
• Frayed, contaminated, or damaged
webbing
• Damaged hardware
• The entire seat belt assembly after it
has been worn in an accident, even
if damage to webbing or assembly is
not apparent

Safety System
3-20
Seat Belt Warning Light
Seat belt warning light
(for driver’s seat)
ODN8039070L
As a reminder to the driver, the seat
belt warning light will illuminate for
approximately 6 seconds each time
you place the ignition switch to the ON
position regardless of belt fastening.
However, if the seat belt is Unfastened,
a warning chime will sound for
approximately 6 seconds.
If you continue not to fasten the seat
belt and you drive at 6 mph (9 km/h) or
more but less than 12mph (20 km/h), the
warning light will stay illuminated.
If you continue not to fasten the seat
belt and you drive over 12 mph (20 km/h)
the seat belt warning chime will sound
for approximately 100 seconds and the
corresponding warning light will blink.
If you unfasten the seat belt while driving
under 12 mph (20 km/h), the seat belt
warning light will illuminate until the seat
belt is fastened.
If you unfasten the seat belt while
driving over 12 mph (20 km/h), the
seat belt warning chime will sound for
approximately 100 seconds and the
corresponding warning light will blink.
Seat belt warning light
(for front passenger’s seat)
As a reminder to the front passenger,
the front passenger’s seat belt warning
lights will illuminate for approximately 6
seconds each time you place the ignition
switch to the ON position regardless of
belt fastening.
If you continue not to fasten the seat
belt and you drive at 6 mph (9 km/h) or
more but less than 12mph (20 km/h), the
warning light will stay illuminated.
If you continue not to fasten the seat
belt and you drive over 12 mph (20 km/h)
the seat belt warning chime will sound
for approximately 100 seconds and the
corresponding warning light will blink.
If you unfasten the seat belt while driving
under 12 mph (20 km/h) the seat belt
warning light will illuminate until the seat
belt is fastened.
If you unfasten the seat belt while
driving over 12 mph (20 km/h), the
seat belt warning chime will sound for
approximately 100 seconds and the
corresponding warning light will blink.
WARNING
The front passenger’s seat belt warning
light may not properly operate if the
front passenger does not sit properly in
the seat.
If you place an object on the passenger
seat or back seat or under the seats,
the warning chime may sound. Please
remove the object if the chime sounds.

Safety System
3-26
Additional Seat Belt Safety
Precautions
Seat belt use during pregnancy
The seat belt should always be used
during pregnancy. The best way to
protect your unborn child is to protect
yourself by always wearing the seat belt.
Pregnant women should always wear
a lap-shoulder seat belt. Place the
shoulder belt across your chest, routed
between your breasts and away from
your neck. Place the lap belt line so
that it fits snugly and as low as possible
across the hips, not across the abdomen.
WARNING
• A pregnant woman or a patient is
more vulnerable to any imapcts on
the abdomen during an abrupt stop
or accident. If you are in an accident
while pregnant, we recommend you
consult your doctor.
• To reduce the risk of serious injury or
death to an unborn child during an
accident, pregnant women should
NEVER place the lap portion of the
seat belt above or over the area of
the abdomen where the unborn child
is located.
Seat belt use and children
Infant and small children
All 50 states have child restraint laws
which require children to travel in
approved child restraint devices,
including booster seats. The age at
which seat belts can be used instead
of child restraints differs among states,
so you should be aware of the specific
requirements in your state, and where
you are travelling. Infant and child
restraints must be properly placed
and installed in a rear seat. For more
information refer to the “Child Restraint
Systems” section in this chapter.
WARNING
ALWAYS properly restrain infants
and small children in a child restraint
appropriate for the child’s height and
weight.
To reduce the risk of serious injury or
death to a child and other passengers,
NEVER hold a child in your lap or arms
when the vehicle is moving. The violent
forces created during an accident will
tear the child from your arms and throw
the child against the interior of the
vehicle.
Small children are best protected
from injury in an accident when
properly restrained in the rear seat
by a child restraint system that meets
the requirements of the Federal Motor
Vehicle Safety Standards. Before buying
any child restraint system, make sure
that it has a label certifying that it meets
Federal Motor Vehicle Safety Standard
FMVSS 213. The restraint must be
appropriate for your child’s height and
weight. Check the label on the child
restraint for this information. Refer to the
“Child Restraint Systems” section in this
chapter.

03
3-27
Larger children
Children under age 13 and who are too
large for a booster seat must always
occupy the rear seat and use the
available lap/shoulder belts. A seat belt
should lie across the upper thighs and
be snug across the shoulder and chest
to restrain the child safely. Check belt fit
periodically. Children are afforded the
most safety in the event of an accident
when they are restrained by a proper
restraint system and/or seat belts in the
rear seat. Always have the LATCH system
inspected by your authorized HYUNDAI
dealer after an accident. An accident can
damage the LATCH system and may not
properly secure the child restraint.
If a larger child over age 13 must be
seated in the front seat, the child must
be securely restrained by the available
lap/shoulder belt and the seat should be
placed in the rearmost position.
If the shoulder belt portion slightly
touches the child’s neck or face, try
placing the child closer to the center
of the vehicle. If the shoulder belt still
touches their face or neck, they need to
be returned to an appropriate booster
seat in the rear seat. WARNING
• Always make sure children are
wearing their seat belts and that they
are properly adjusted before driving.
• NEVER allow the shoulder belt to
contact the child’s neck or face.
• Do not allow more than one child to
use a single seat belt.
Transporting an injured person
A seat belt should be used when an
injured person is being transported.
Consult a physician for specific
recommendations.
One person per belt
Two people (including children) should
never attempt to use a single seat belt.
This could increase the severity of
injuries in case of an accident.
Do not lie down
Sitting in a reclined position when the
vehicle is in motion can be dangerous.
Even when buckled up, the protections
of your restraint system (seat belts and
air bags) is greatly reduced by reclining
your seatback.
To reduce the chance of injuries in the
event of an accident and to achieve the
maximum effectiveness of the restraint
system, all passengers should be sitting
up and the front and rear seats should
be in an upright position when the car is
moving.
A seat belt cannot provide proper
protection if the person is lying down in
the rear seat or if the front or rear seats
are in a reclined position.

Safety System
3-28
WARNING
• NEVER ride with a reclined seatback
when the vehicle is moving.
• Riding with a reclined seatback
increases your chance of serious
or fatal injuries in the event of a
collision or sudden stop.
• Drivers and passengers should
always sit well back in their seats,
properly belted, and with the
seatbacks upright.
Care of Seat Belts
Seat belt systems should never be
disassembled or modified. In addition,
care should be taken to assure that seat
belts and belt hardware are not damaged
by seat hinges, doors or other abuse.
Periodic inspection
All seat belts should be inspected
periodically for wear or damage of
any kind. Any damaged parts should
be replaced as soon as possible by an
authorized HYUNDAI dealer.
Keep belts clean and dry
Seat belts should be kept clean and
dry. If belts become dirty, they can be
cleaned by using a mild soap solution
and warm water. Bleach, dye, strong
detergents or abrasives should not be
used because they may damage and
weaken the fabric.
When to replace seat belts
The entire seat belt assembly or
assemblies should be replaced if the
vehicle has been involved in an accident.
This should be done even if no damage is
visible. Additional questions concerning
seat belt operation should be directed to
an authorized HYUNDAI dealer.

03
3-29
Children Always in the Rear
WARNING
Always properly restrain children in the
rear seats of the vehicle.
Children of all ages are safer when
restrained in the rear seat. A child riding
in the front passenger seat can be
forcefully struck by an inflating air bag
resulting in SERIOUS INJURY or DEATH.
Children under age 13 must always
ride in the rear seats and must always
be properly restrained to minimize the
risk of injury in an accident, sudden
stop or sudden maneuver. According
to accident statistics, children are safer
when properly restrained in the rear
seats than in the front seat. Even with
air bags, children can be seriously
injured or killed. Children too large for
a child restraint must use the seat belts
provided.
All 50 states have child restraint laws
which require children to travel in
approved child restraint devices. The
laws governing the age or height/weight
restrictions at which seat belts can be
used instead of child restraints differs
among states, so you should be aware of
the specific requirements in your state,
and where you are travelling.
Child restraint systems must be properly
placed and installed in the rear seat.
You must use a commercially available
child restraint system that meets the
requirements of the Federal Motor
Vehicle Safety Standards (FMVSS 213).
Child restraint systems are generally
designed to be secured in a vehicle seat
by lap belt portion of a lap/shoulder belt,
or by a LATCH system in the rear seats of
the vehicle.
Child restraint system (CRS)
Infants and younger children must be
restrained in an appropriate rear-facing
or forward-facing CRS that has first
been properly secured to the rear seat
of the vehicle. Read and comply with
the instructions for installation and use
provided by the manufacturer of the
child restraint.
WARNING
An improperly secured child restraint
can increase the risk of SERIOUS
INJURY or DEATH in an accident. Always
take the following precautions when
using a child restraint system:
• NEVER install a child or infant
restraint in the front passenger’s
seat.
• Always properly secure the child
restraint to a rear seat of the vehicle.
• Always follow the child restraint
system manufacturer’s instructions
for installation and use.
• Always properly restrain your child in
the child restraint.
• If the vehicle head restraint prevents
proper installation of a child seat
(as described in the child restraint
system manual), the head restraint of
the respective seating position shall
be readjusted or entirely removed.
• Do not use an infant carrier or a
child safety seat that “hooks” over
a seatback, it may not provide
adequate protection in an accident.
• After an accident, have a HYUNDAI
dealer check the child restraint
system, seat belts, tether anchors
and lower anchors.
CHILD RESTRAINT SYSTEM (CRS)

Safety System
3-30
Selecting a Child Restraint
System (CRS)
When selecting a CRS for your child,
always:
• Make sure the CRS has a label
certifying that it meets applicable
Federal Motor Vehicle Safety
Standards (FMVSS 213).
• Select a child restraint based on
your child’s height and weight. The
required label or the instructions for
use typically provide this information.
• Select a child restraint that fits the
vehicle seating position where it will
be used.
• Read and comply with the warnings
and instructions for installation and
use provided with the child restraint
system.
Child restraint system types
There are three main types of child
restraint systems: rear-facing seats,
forward-facing seats, and booster seats.
They are classified according to the
child’s age, height and weight.
Rear-facing child seats
WARNING
NEVER install a child or infant restraint
in the front passenger’s seat.
Placing a rear-facing child restraint in
the front seat can result in SERIOUS
INJURY or DEATH if the child restraint is
struck by an inflating air bag.
ODN8039027
A rear-facing child seat provides restraint
with the seating surface against the back
of the child. The harness system holds
the child in place, and in an accident,
acts to keep the child positioned in the
seat and reduce the stress to the neck
and spinal cord.
All children under age one must always
ride in a rear-facing infant child restraint.
Convertible and 3-in-1 child seats
typically have higher height and weight
limits for the rear-facing position,
allowing you to keep your child rear-
facing for a longer period of time.
Continue to use a rear-facing child seat
for as long as your child will fit within the
height and weight limits allowed by the
child seat manufacturer. It’s the best way
to keep them safe. Once your child has
outgrown the rear-facing child restraint,
your child is ready for a forward-facing
child restraint with a harness.