seat Hyundai Elantra 2014 Workshop Manual

Safety features of your vehicle
50
3
SRS components and functions
The SRS consists of the following
components:
1. Driver's front air bag module
2. Passenger's front air bag module
3. Side impact air bag modules
4. Curtain air bag modules
5. Retractor pre-tensioner assem-
blies
6. Air bag warning light
7. SRS control module (SRSCM)
8. Front impact sensors
9. Side impact sensors 10. PASS AIR BAG “OFF” indicator
(Front passenger’s seat only)
11. Occupant classification system (Front passenger’s seat only)
12. Driver’s and front passenger’s seat belt buckle sensors
13. Anchor pre-tensioner
14. Side pressure sensor
The SRSCM continually monitors all
SRS components while the ignition
switch is ON to determine if a crash
impact is severe enough to require
air bag deployment or pre-tensioner
seat belt deployment.
WARNING
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.
Properly secure child restraints
as far away from the door as
possible.
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.
OMD030050N

Safety features of your vehicle
351
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 electrical
system for malfunctions. The light indi-
cates that there is a potential problem
with your air bag system. During a moderate to severe frontal
collision, sensors will detect the vehi-
cle’s rapid deceleration. If the rate of
deceleration is high enough, the con-
trol 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 provide
adequate restraint.
Air bags are activated (able to
inflate if necessary) only when the
ignition switch is in the ON position.
Air bags inflate in the event of a severe frontal or side collision 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.
WARNING
If your SRS malfunctions, the
air bag may not inflate properly
during 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
placed 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.

Safety features of your vehicle
353
When the SRSCM detects a suffi-
ciently severe impact to the front of
the vehicle, it will automatically
deploy the front air bags.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's or the passenger's
forward motion, reducing the risk of
head and chest injury.
OLMB033054
■Driver’s front air bag (1)
OLMB033055
■Driver’s front air bag (2)
WARNING
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.

Safety features of your vehicle
355
Noise and smoke from inflatingair bag
When the air bags inflate, they make
a loud noise and they leave 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 breath-
ing 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 deployment, seek
medical attention immediately.
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.
Occupant Classification
System (OCS)
Your vehicle is equipped with an
Occupant Classification System
(OCS) in the front passenger's seat.
The OCS is designed to detect the
presence of a properly-seated front
passenger and determine if the pas-
senger's front air bag should be
enabled (may inflate) or not. The dri-
ver's front air bag is not affected or
controlled by the OCS.
OMD030047N
(Continued)
Always wash exposed skin
areas thoroughly with luke-
warm water and mild soap.
Always have an authorized
HYUNDAI dealer replace the air
bag immediately after deploy-
ment. Air bags are designed to
be used only once.

Safety features of your vehicle
56
3
Main components of the
Occupant Classification System
A detection device located within the front passenger seat.
Electronic system to determine whether the passenger air bag
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. 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.
However, if the occupant does not sit
in the seat properly (for example, by
not sitting upright, by sitting on the
edge of the seat, or by otherwise
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
facia 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.
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 center
console.
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.

Safety features of your vehicle
357
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 sys-
tem with 12 months old*3OnOffDeactivated
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.

Safety features of your vehicle
58
3
WARNING
Riding 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:
OVQ036013N
OVQ036014N
1KMN3663
1KMN3662
1KMN3664
NEVER put a heavy load in
the front seat or seatback
pocket.
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.
1KMN3665

Safety features of your vehicle
359
Proper seated position for OCS
If the “PASSENGER AIR BAG OFF”
indicator is on when an adult is seat-
ed in the front passenger seat, place
the ignition switch to the LOCK/OFF
position and ask the passenger to sit
properly (sitting upright with the seat
back in an upright position, centered
on the seat cushion with their seat
belt on, legs comfortably extended
and their feet on the floor). Restart
the engine and have the person
remain in that position. This will allow
the system to detect the person and
to enable the passenger air bag. If
the "PASSENGER AIR BAG OFF"
indicator is still on, ask the passen-
ger to move to the rear seat.
✽ ✽NOTICE
The "PASSENGER AIR BAG OFF"
indicator illuminates for approxi-
mately 4 seconds after the ignition
switch is in the ON position or after
the engine is started. If the front
passenger seat is occupied, the OCS
will then classify the front passenger
after several more seconds.
B990A01O
WARNING
Never allow an adult passenger
to ride in the front passenger
seat when the “PASSENGER AIR
BAG OFF” indicator is illuminat-
ed. During a collision, the air bag
will not inflate if the indicator is
illuminated. Have your passen-
ger move to the rear seat.

Safety features of your vehicle
60
3
Do Not Install a Child Restraint in
the Front Passenger’s Seat
Even though your vehicle is equipped
with the OCS, never install a child
restraint in the front passenger’s seat.
An inflating air bag can forcefully
strike a child or restraint resulting in
serious or fatal injury.
Why Didn’t My Air Bag Go Off
in a Collision? (Air bags are
not designed to inflate in
every collision.)
There are certain types of accidents
in which the air bag would not be
expected to provide additional protec-
tion. These include rear impacts, sec-
ond or third collisions in multiple
impact accidents, as well as low
speed impacts. Damage to the vehicle
indicates a collision energy absorp-
tion, and is not an indicator of whether
or not an air bag should have inflated.
1JBH3051
WARNING
NEVER place a rear-facing or
front-facing child restraint in
the front passenger’s seat of
the vehicle.
An inflating frontal air bag
could forcefully strike a child
resulting in serious injury or
death.
Always properly restrain chil-
dren in an appropriate child
restraint in the rear seat of the
vehicle.

Safety features of your vehicle
363
Air bag non-deployment condi-tions
In certain low-speed collisions the air
bags may not deploy. The air bags
are designed not to deploy in such
cases because they may not provide
benefits beyond the protection of the
seat belts. Front air bags are not designed to
inflate in rear collisions, because
occupants are moved backward by
the force of the impact. In this case,
inflated air bags would not provide
any additional benefit.
Front air bags may not inflate in side
impact collisions, because occupants
move in the direction of the collision,
and thus in side impacts, front air bag
deployment would not provide addi-
tional occupant protection.
However, side impact and curtain air
bags may inflate depending on the
intensity, vehicle speed and angles
of impact.
1JBA3515
OBH0380581JBA3516