Hyundai Sonata 2019 Repair Manual

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Safety system of your vehicle
5. Remove as much slack from the belt as possible by pushing down
on the child restraint system while
feeding the shoulder belt back into
the retractor.
6. Push and pull on the child restraint system to confirm that the seat
belt is holding it firmly in place. If it
is not, release the seat belt and
repeat steps 2 through 6.
7. Double check that the retractor is in the "Automatic Locking" mode
by attempting to pull more of the
seat belt out of the retractor. If you
cannot, the retractor is in the
"Automatic Locking" mode.
If your CRS manufacturer instructs or
recommends you to use a tether
anchor with the lap/shoulder belt,
refer to the previous pages for more
information. When the seat belt is allowed to
retract to its fully stowed position,
the retractor will automatically
switch from the "Automatic
Locking" mode to the emergency
lock mode for normal adult usage.
To remove the child restraint, press
the release button on the buckle and
then pull the lap/shoulder belt out of
the restraint and allow the seat belt
to retract fully.
NOTICE
If the retractor is not in the
"Automatic Locking" mode, the
child restraint can move when
your vehicle turns or stops sud-
denly. A child can be seriously
injured or killed if the child
restraint is not properly
anchored in the car, including
manually pulling the seat belt
all the way out to shift the rec-
tractor to the "Automatic
Locking" mode.
WARNING

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Safety system of your vehicle
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OLF034038
The actual air bags in the vehicle may differ from the illustration.
1. Driver's front air bag
2. Passenger's front air bag
3. Side air bag
4. Curtain air bag
5. Driver's knee air bag

2-46
Safety system of your vehicle
This vehicle is equipped with an
Advanced Supplemental Air Bag
System for the driver's seat and front
passenger's seats.
The front air bags are designed to
supplement the three-point seat
belts. For these air bags to provide
protection, the seat belts must be
worn at all times when driving.
You can be severely injured or killed
in an accident if you are not wearing
a seat belt. Air bags are designed to
supplement seat belts, but do not
replace them. Also, air bags are not
designed to deploy in every collision.
In some accidents, the seat belts are
the only restraint protecting you. AIR BAG SAFETY PRECAUTIONS
ALWAYS use seat belts and child restraints - every trip, every time,
everyone! Even with air bags, you can be seriously injured or killed in
a collision if you are improperly belted or not wearing your seat belt
when the air bag inflates.
NEVER place a child in any child restraint or booster seat in the front
passenger seat. An inflating air bag could forcefully strike the infant
or child causing serious or fatal injuries.
ABC - Always Buckle Children under age 13 in the back seat. It is the
safest place for children of any age to ride. If a child age 13 or older
must be seated in the front seat, he or she must be properly belted
and the seat should be moved as far back as possible.
All occupants should sit upright with the seatback in an upright posi-
tion, centered on the seat cushion with their seat belt on, legs com-
fortably extended and their feet on the floor until the vehicle is parked
and the engine is turned off. If an occupant is out of position during
an accident, the rapidly deploying air bag may forcefully contact the
occupant causing serious or fatal injuries.
You and your passengers should never sit or lean unnecessarily
close to the air bags or lean against the door or center console.
Move your seat as far back as possible from front air bags, while still
maintaining control of the vehicle. The U.S. National Highway Traffic
Safety Administration (NHTSA) recommends that drivers allow at
least 10 inches (25 cm) between the center of the steering wheel and
the chest.
WARNING

2-47
Safety system of your vehicle
2
Where Are the Air Bags?
Driver's and passenger's frontair bags
Your vehicle is equipped with a
Advanced Supplemental Restraint
System (SRS) and lap/shoulder belts
at both the driver and passenger
seating positions.
The SRS consists of air bags which
are located in the center of the steer-
ing wheel, in the driver's side lower
crash pad below the steering wheel
column and the passenger's side
front panel pad above the glove box.
The air bags are labeled with the let-
ters "AIR BAG" embossed on the
pad covers. The purpose of the SRS is to provide
the vehicle's driver and front passen-
gers with additional protection than
that offered by the seat belt system
alone. The SRS uses sensors to
gather information about the driver’s
and front passenger's seat belt
usage and impact severity.
The seat belt buckle sensors deter-
mine if the driver and front passen-
ger's seat belts are fastened. These
sensors provide the ability to control
the SRS deployment based on
whether or not the seat belts are fas-
tened, and how severe the impact is.
The advanced SRS offers the ability
to control the air bag inflation within
two levels. A first stage level is pro-
vided for moderate-severity impacts.
A second stage level is provided for
more severe impacts.
According to the impact severity, and
seat belt usage, the SRS Control
Module (SRSCM) controls the air
bag inflation. Failure to properly wear
seat belts can increase the risk or
severity of injury in an accident.
OLF037039
OLF034040N
OLF034041
■Driver's knee air bag
■Driver's front air bag
■Passenger's front air bag

2-48
Safety system of your vehicle
Side air bags
Your vehicle is equipped with a side
air bag in each front seat. The pur-
pose of the air bag is to provide the
vehicle's driver and the front passen-
ger with additional protection than
that offered by the seat belt alone.
OLF034042N
OLF034043
To reduce the risk of serious
injury or death from an inflating
front air bags, take the following
precautions:
Seat belts must be worn at all
times to help keep occupants
positioned properly.
Move your seat as far back as
possible from front air bags,
while still maintaining control
of the vehicle.
Never lean against the door or
center console.
Do not allow the front passen-
ger to place their feet or legs
on the dashboard.(Continued)
(Continued)
No objects (such as crash pad
cover, cellular phone holder,
cup holder, perfume or stick-
ers) should be placed over or
near the air bag modules on
the steering wheel, instrument
panel, windshield glass, and
the front passenger's panel
above the glove box. Such
objects could cause harm if
the vehicle is in a crash
severe enough to cause the
air bags to deploy.
Do not attach any objects on
front windshield and inside
mirror.
WARNING

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Safety system of your vehicle
2
The side air bags are designed to
deploy only during certain side impact
collisions, depending on the crash
severity, angle, speed and point of
impact.
The side and curtain air bags on
both sides of the vehicle may deploy
if a rollover or possible rollover is
detected.
The side air bags are not designed to
deploy in all side impact or rollover
situations.To reduce the risk of serious
injury or death from an inflating
side air bag, take the follo
wing
precautions:
Seat belts must be worn at all
times to help keep occupants
positioned properly.
Do not allow passengers to
lean their heads or bodies onto
doors, put their arms on the
doors, stretch their arms out of
the window, or place objects
between the doors and seats.
Hold the steering wheel at the 9
o'clock and 3 o'clock positions,
to minimize the risk of injuries
to your hands and arms.
Do not use any accessory
seat covers. This could reduce
or prevent the effectiveness
of the system.
Do not place any objects over
the air bag or between the air
bag and yourself.
(Continued)
WARNING (Continued)Also, do not attach any
objects around the area the
air bag inflates such as the
door, side door glass, front
and rear pillar.
Do not place any objects
between the door and the
seat. They may become dan-
gerous projectiles if the side
air bag inflates.
Do not install any accessories
on the side or near the side air
bags.
Do not put any objects
between the side air bag label
and seat cushion. It could
cause harm if the vehicle is in
a crash severe enough to
cause the air bags to deploy.
Do not cause impact to the
doors when the ignition
switch is in the ON position or
this may cause the side air
bags to inflate.
If the seat or seat cover is
damaged, have the vehicle
checked and repaired by an
authorized HYUNDAI dealer.

2-50
Safety system of your vehicle
Curtain air bags
Curtain air bags are located along
both sides of the roof rails above the
front and rear doors.They are designed to help protect the
heads of the front seat occupants
and the rear outboard seat occupants
in certain side impact collisions.
The curtain air bags are designed to
deploy only during certain side
impact collisions, depending on the
crash severity, angle, speed and
impact.
The side and curtain air bags on
both sides of the vehicle may deploy
if a rollover or possible rollover is
detected.
The curtain air bags are not designed
to deploy in all side impact or rollover
situations.
To reduce the risk of serious
injury or death from an inflating
curtain air bags, take the follow-
ing precautions:All seat occupants must wear
seat belts at all times to help
keep occupants positioned
properly. (Continued)
(Continued)
Properly secure child restraints
as far away from the door as
possible.
Do not place any objects over
the air bag. Also, do not attach
any objects around the area the
air bag inflates such as the
door, side door glass, front and
rear pillar, roof side rail.
Do not hang other objects
except clothes, especially
hard or breakable objects. In
an accident, it may cause vehi-
cle damage or personal injury.
Do not allow passengers to
lean their heads or bodies
onto doors, put their arms on
the doors, stretch their arms
out of the window, or place
objects between the doors
and seats.
Do not open or repair the side
curtain air bags.
WARNING
OLF034044
OLF034045

2-51
Safety system of your vehicle
2
How Does the Air Bag System
Operate?
The SRS consists of the following
components:
1. Driver's front air bag module
2. Passenger's front air bag module
3. Side air bag modules
4. Curtain air bag modules
5. Retractor pre-tensioner assem-blies
6. Air bag warning light
7. SRS control module (SRSCM)/ Rollover sensor
8. Front impact sensors 9. Side impact sensors
10. Side pressure sensors
11. Driver's knee air bag module
12. Front passenger's seat belt
buckle sensors
13. Anchor pre-tensioner
14. Occupant classification system
The SRSCM continually monitors all
SRS components while the Engine
Start/Stop button is in the ON posi-
tion to determine if a crash impact is
severe enough to require air bag
deployment or pre-tensioner seat
belt deployment.
SRS warning light
The SRS (Supplement Restraint
System) air bag warning light on the
instrument panel displays the air bag
symbol depicted in the illustration.
The system checks the air bag elec-
trical system for malfunctions. The
light indicates that there is a potential
malfunction with your air bag system,
which could include your side and
curtain air bags used for rollover pro-
tection.
ODH033104L/Q

2-52
Safety system of your vehicleDuring a frontal collision, sensors will
detect the vehicle's deceleration. If
the rate of deceleration is high
enough, the control unit will inflate
the front air bags.
The front air bags help protect the
driver and front passenger by
responding to frontal impacts in
which seat belts alone cannot pro-
vide adequate restraint. When need-
ed, the side air bags help provide
protection in the event of a side
impact or rollover.
Air bags are activated (able toinflate if necessary) only when the
ignition switch is in the ON position.
Air bags inflate in the event of cer- tain frontal or side collisions to help
protect the occupants from serious
physical injury.
There is no single speed at which the air bags will inflate. Generally,
air bags are designed to inflate
based upon the severity of a colli-
sion and its direction. These two
factors determine whether the sen-
sors produce an electronic deploy-
ment/inflation signal. Air bag deployment depends on a
number of factors including vehicle
speed, angles of impact and the
density and stiffness of the vehicles
or objects which your vehicle
impacts during a collision. The
determining factors are not limited
to those mentioned above.
The front air bags will completely inflate and deflate in an instant. It is
virtually impossible for you to see
the air bags inflate during an acci-
dent. It is much more likely that you
will simply see the deflated air bags
hanging out of their storage com-
partments after the collision.
In addition to inflating in certain side collisions, vehicles equipped
with a rollover sensor, side and
curtain air bags will inflate if the
sensing system detects a rollover.
When a rollover is detected, side
and curtain air bags will remain
inflated longer to help provide pro-
tection from ejection, especially
when used in conjunction with the
seat belts.
If your SRS malfunctions, the air
bag may not inflate properly dur-
ing an accident increasing the
risk of serious injury or death.
If any of the following condi-
tions occur, your SRS is mal-
functioning:
The light does not turn on for
approximately six seconds
when the ignition switch is in
the ON position.
The light stays on after illumi-
nating for approximately six
seconds.
The light comes on while the
vehicle is in motion.
The light blinks when the
engine is running.
Have an authorized HYUNDAI
dealer inspect the SRS as soon
as possible if any of these con-
ditions occur.
WARNING

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Safety system of your vehicle
2
To help provide protection, the airbags must inflate rapidly. The speed
of air bag inflation is a consequence
of extremely short time in which to
inflate the air bag between the
occupant and the vehicle structures
before the occupant impacts those
structures. This speed of inflation
reduces the risk of serious or life-
threatening injuries and is thus a
necessary part of air bag design.
However, the rapid air bag inflation
can also cause injuries which can
include facial abrasions, bruises and
broken bones because the inflation
speed also causes the air bags to
expand with a great deal of force.
There are even circumstances under which contact with the air
bag can cause fatal injuries, espe-
cially if the occupant is positioned
excessively close to the air bag.
You can take steps to reduce the risk
of being injured by an inflating air
bag. The greatest risk is sitting too
close to the air bag. An air bag needs
about 10 inches (25 cm) of space to
inflate. NHTSA recommends that
drivers allow at least 10 inches
(25 cm) between the center of the
steering wheel and the chest. When the SRSCM detects a suffi-
ciently severe impact to the front of
the vehicle, it will automatically
deploy the front air bags.
OHM039102N
■Driver’s front air bag (1)
To reduce the risk of serious
injury or death from an inflating
air bag, take the following pre-
cautions:
NEVER place a child restraint
in the front passenger seat.
Always properly restrain chil-
dren under age 13 in the rear
seats of the vehicle.
Adjust the front passenger's
and driver’s seats as far to the
rear as possible while allow-
ing you to maintain full con-
trol of the vehicle.
Hold the steering wheel with
hands at the 9 o'clock and 3
o'clock positions.
Never place anything or any-
one between the air bag and
the seat occupant.
Do not allow the front passen-
ger to place their feet or legs
on the dashboard.
WARNING