Hyundai Accent 2019 Repair Manual

2-44
Safety system of your vehicle
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.
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.
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/ Side impact sensors
4. Curtain air bag modules
5. Retractor pre-tensioner assemblies
6. Air bag warning light
7. SRS control module (SRSCM)/ Rollover sensor
8. Front impact sensors
To reduce the risk of serious
injury or death from an inflating
curtain air bag, 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
vehicle 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
OAEE036075N

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Safety system of your vehicle
2
9. Side pressure sensors
10. Emergency Fastening DeviceSystem
11. Occupant classification system
The SRSCM (Supplemental Restraint
System Control Module) continually
monitors all SRS components while
the ignition switch is in the ON position
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.
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 Engine Start/Stop
button 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

2-46
Safety system of your vehicle
During 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 to inflate if necessary) only when the
Engine Start/Stop button 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.
Generally, air bags are designed to inflate based upon the severity of a
collision, its direction, etc. These
two factors determine whether the
sensors produce an electronic
deployment/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. To help provide protection, the air
bags 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.

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Safety system of your vehicle
2
You can take steps to help reduce
the risk of being injured by an inflat-
ing 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 recom-
mends 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.
OLMB033054
■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

2-48
Safety system of your vehicle
Upon deployment, tear seams mold-
ed directly into the pad covers will
separate under pressure from the
expansion of the air bags. Further
opening of the covers allows full
inflation of the air bags.
A fully inflated air bag, in combina-
tion with a properly worn seat belt,
slows the driver or the front passen-
ger forward motion, reducing the risk
of head and chest injury. After complete inflation, the air bag
immediately starts deflating, enabling
the driver to maintain forward visibili-
ty and the ability to steer or operate
other controls.
OLMB033055
■Driver's front air bag (2)
OLMB033056
■Driver's front air bag (3)
OLMB033057
■Passenger's front air bag
To prevent objects from becom-
ing dangerous projectiles when
the passenger's air bag inflates:
Do not install or place any
objects (drink holder, CD
holder, stickers, etc.) on the
front passenger's panel above
the glove box where the pas-
senger's air bag is located.
Do not install a container of
liquid air freshener near the
instrument cluster or on the
instrument panel surface.
WARNING

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Safety system of your vehicle
2
What to Expect After an Air
Bag Inflates
After a frontal or side air bag inflates,
it will deflate very quickly. Air bag
inflation will not prevent the driver
from seeing out of the windshield or
being able to steer. Curtain air bags
may remain partially inflated for
some time after they deploy.
Noise and smoke from inflatingair bag
When the air bags inflate, they make
a loud noise and may produce
smoke and powder in the air inside of
the vehicle. This is normal and is a
result of the ignition of the air bag
inflator. After the air bag inflates, you
may feel substantial discomfort in
breathing because of the contact of
your chest with both the seat belt and
the air bag, as well as from breathing
the smoke and powder. The powder
may aggravate asthma for some
people. If you experience breathing
problems after an air bag deploy-
ment, seek medical attention imme-
diately.
Though the smoke and powder are
nontoxic, they may cause irritation to
the skin, eyes, nose, throat, etc. If
this is the case, wash and rinse with
cold water immediately and seek
medical attention if the symptoms
persist.
(Continued)Always wash exposed skin
areas thoroughly with cold
and mild soap.
Always have an authorized
HYUNDAI dealer replace the
air bag immediately after
deployment. Air bags are
designed to be used only
once.
After an air bag inflates, take
the following precautions:
Open your windows and doors
as soon as possible after
impact to reduce prolonged
exposure to the smoke and
powder released by the inflat-
ing air bag.
Do not touch the air bag stor-
age area's internal compo-
nents immediately after an air
bag has inflated. The parts
that come into contact with an
inflating air bag may be very
hot.
(Continued)
WARNING

2-50
Safety system of your vehicle
Occupant Classification
System (OCS)
Your vehicle is equipped with an
Occupant Classification System
(OCS) in the front passenger's seat.
Main components of theOccupant Classification System
A detection device located within
the front passenger seat cushion.
Electronic system to determine whether the passenger air bag
systems should be activated or
deactivated.
An indicator light located on the instrument panel which illuminates
the words "PASSENGER AIR BAG
OFF" indicating the front passen-
ger air bag system is deactivated.
The instrument panel air bag indi- cator light is interconnected with
the OCS.
The OCS is designed to help detect
the presence of a properly-seated
front passenger and determine if the
passenger's front air bag should be
enabled (may inflate) or not.
The purpose is to help reduce the
risk of injury or death from an inflat-
ing air bag to certain front passenger
seat occupants, such as children, by
requiring the air bag to be automati-
cally turned OFF. For example, if a child restraint of the
type specified in the regulations is on
the seat, the occupant classification
sensor can detect it and cause the
air bag to turn OFF.
Front passenger seat adult occu-
pants who are properly seated and
wearing the seat belt properly,
should not cause the passenger air
bag to be automatically turned OFF.
For small adults it may be turned
OFF, however, if the occupant does
not sit in the seat properly (for exam-
ple, by not sitting upright, by sitting
on the edge of the seat, or by other-
wise being out of position), this could
cause the sensor to turn the air bag
OFF.
You will find the "PASSENGER AIR
BAG OFF" indicator on the center
fascia panel. This system detects the
conditions 1-4 in the following table
and activates or deactivates the front
passenger air bag based on these
conditions.
OHCA037056

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Safety system of your vehicle
2
Always be sure that you and all vehi-
cle occupants are seated properly
and wearing the seat belt properly for
the most effective protection by the
air bag and the seat belt.
The OCS may not function properly if
the passenger takes actions which
can affect the classification system.
These include:
Failing to sit in an upright position.
Leaning against the door or centerconsole.
Sitting towards the sides of the front of the seat.
Putting their legs on the dashboard or resting them on other locations
which reduce the passenger
weight on the front seat.
Wearing the seat belt improperly.
Reclining the seatback.
Wearing a thick cloth like ski wear or hip protection wear.
Putting an additional thick cushion on the seat.
Putting electrical devices (e.g. notebook, satellite radio, cell
phone) on the seat with inverter
charging.Condition and operation in the front passenger Occupant Classification System
Condition detected by the
occupant classification system
Indicator/Warning lightDevices
"PASSENGER
AIR BAG OFF" indicator lightSRS
warning lightFront passenger
air bag
1. Adult *1OffOffActivated
2. Infant *2or child restraint
system with 12 months old *3*4 OnOffDeactivated
3. Unoccupied OnOffDeactivated
4. Malfunction in the systemOffOnActivated
*1The system judges a person of adult size as an adult. When a smaller adult sits in the front
passenger seat, the system may recognize him/her as a child depending on his/her physique
and posture.
*
2Do not allow children to ride in the front passenger seat. When a larger child who has out- grown a child restraint system sits in the front passenger seat, the system may recognize
him/her as an adult depending upon his/her physique or sitting position.
*
3Never install a child restraint system on the front passenger seat.
*4The PASSENGER AIR BAG "OFF" indicator may turn on or off when a child above 12 months
to 12 years old (with or without child restraint system) sits in the front passenger seat. This is
a normal condition.

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Safety system of your vehicleRiding in an improper position or placing weight on the front passenger’s seat when it is unoccupied by a
passenger adversely affects the OCS. To reduce the risk of serious injury or death:
WARNING
OVQ036013NB
OLMB033100
OLMB033101
OLMB033103
OLMB033102
OLMB033104
NEVER put a heavy load in
the front seat or seatback
pocket, or hang any items
on the front passenger
seat.
NEVER place your feet on
the front passenger seat-
back.
NEVER sit with your hips
shifted towards the front
of the seat.
NEVER ride with the seat-
back reclined when the
vehicle is moving.
NEVER place your feet or
legs on the dashboard.
NEVER lean on the door or
center console or sit on
one side of the front pas-
senger seat. (continued)

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Safety system of your vehicle
2
ODH035900K
ODH035901K
ODH035902K
ODH035903K
Do not sit on the passen-
ger seat wearing heavily
padded clothes such as
ski wear and hip protector.
Do not use car seat
accessories such as thick
blankets and cushions
which cover up the car
seat surface.
Do not place electronic
devices such as laptops,
DVD player, cell phone, or
conductive materials
such as water bottles on
the passenger seat.
Do not use electronic
devices such as laptops
and satellite radios which
use inverter chargers.
If large quantity of liquid
has been spilled on the
passenger seat, the air
bag warning light may
illuminate or malfunction.
Therefore, make sure the
seat has been completely
dried before driving the
vehicle.
Do not place sharp objects on the front passenger seat. These may damage the occupant detection sys-
tem, if they puncture the seat cushion.
Do not place any items under the front passenger seat.
When changing or replacing the seat or seat cover, use original items only. The OCS has been devel-
oped based on using original HYUNDAI car seats only. Altering or changing the authentic parts may
result in system malfunction and increase risk of injury when in collision. Any of the above could inter-
fere with the proper operation of the OCS sensor thereby increasing the risk of an injury in an accident.
(continued)