2017 Hyundai Elantra GT sensor

325
Safety features of your vehicle
The seat belt pre-tensioner system
consists mainly of the following com-
ponents. Their locations are shown in
the illustration:
1. SRS air bag warning light
2. Retractor pre-tensioner assembly
3. SRS control module
4. Emergency fastening device (EFD)
✽ ✽NOTICE
• Both the driver's and front pas-
senger's pre-tensioner seat belts
may be activated in certain frontal
or side collisions.
• When the pre-tensioner seat belts are activated, a loud noise may be
heard and fine dust, which may
appear to be smoke, may be visible
in the passenger compartment.
These are normal operating condi-
tions and are not hazardous.
• Although it is harmless, the fine dust may cause skin irritation and
should not be breathed for pro-
longed periods. Wash all exposed
skin areas thoroughly after an
accident in which the pre-tension-
er seat belts were activated.
• Because the sensor that activates the SRS air bag is connected with
the pre-tensioner seat belt, the
SRS air bag warning light on
the instrument panel will illumi-
nate for approximately 6 seconds
after the ignition switch has been
turned to the ON position, and
then it should turn off.WARNING
To obtain maximum benefit
from a pre-tensioner seat belt:
1. The seat belt must be worn
correctly and adjusted to the
proper position. Please read
and follow all of the important
information and precautions
about your vehicle’s occupant
safety features – including
seat belts and air bags – that
are provided in this manual.
2. Be sure you and your passen- gers always wear seat belts
properly.
OMD030051N-1

341
Safety features of your vehicle
How does the air bag system
operate
Air bags are activated (able toinflate if necessary) only when the
ignition switch is turned to the ON
or START position.
Air bags inflate instantly in the event of serious frontal or side col-
lision in order 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 by the severity of a collision
and its direction. These two factors
determine whether the sensors
send out 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 vehi-
cles or objects which your vehicle
hits in the collision. Though, 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
accident.
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 order to help provide protection in a severe collision, the air bags
must inflate rapidly. The speed of
air bag inflation is a consequence
of the extremely short time in
which a collision occurs and the
need to get the air bag between
the occupant and the vehicle struc-
tures before the occupant impacts
those structures. This speed of
inflation reduces the risk of serious
or life-threatening injuries in a
severe collision and is thus a nec-
essary part of air bag design. However, air bag inflation can also
cause injuries which normally 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.

Safety features of your vehicle
44
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 assemblies
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. Emergency fastening device (EFD)
14. Driver’s knee air bag module
15. Side pressure impact 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. The SRS air bag warning light " "
on the instrument panel will illumi-
nate for about 6 seconds after the
ignition switch is turned to the ON
position, after which the SRS air bag
warning light " " should go out.
W7-147OGDE035105

Safety features of your vehicle
48
3
Main components of occupant
classification system
A detection device located within
the front passenger seat frame.
Electronic system to determine whether the front passenger air
bag system should be activated or
deactivated.
An indicator light located on the instrument panel which illuminates
the words PASS AIR BAG "OFF"
indicating the front passenger air
bag system is deactivated.
The instrument panel air bag indi- cator light is interconnected with
the occupant classification system.
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 PASS AIR BAG
"OFF" indicator on the center facia
panel. This system detects the condi-
tions 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 and
restrained properly (sitting upright
with the seat in an upright position,
centered on the seat cushion, with
the person's legs comfortably
extended, feet on the floor, and wear-
ing the safety belt properly) for the
most effective protection by the air
bag and the safety belt. The OCS may not function proper-
ly if the passenger takes actions
which can affect the classification
system. These include:
(1) Failing to sit in an upright posi- tion.
(2) Leaning against the door or center console.
(3) Sitting towards the sides or the front of the seat.
(4) Putting legs on the dashboard or resting them on other loca-
tions which reduce the passen-
ger weight on the front seat.
(5) Improperly wearing the safety belt.
(6) Reclining the seat back.

351
Safety features of your vehicle
When an adult is seated in the front
passenger seat, if the PASS AIR
BAG “OFF” indicator is on, turn the
ignition switch to the LOCK or 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 PASS AIR BAG "OFF" indicator
is still on, ask the passenger to move
to the rear seat.
✽ ✽
NOTICE
The PASS AIR BAG "OFF" indica-
tor illuminates for about 4 seconds
after the ignition switch is turned to
the ON position or after the engine is
started. If the front passenger seat is
occupied, the occupant classification
sensor will then classify the front pas-
senger after several more seconds.
B990A01O
Proper position
WARNING
Do not hang onto the front pas-
senger seat. Do not hang any
items, such as a seatback table
or entertainment system on the
front passenger seatback. Do
not place feet on the front pas-
senger seatback. Do not place
any items under the front pas-
senger seat. Any of these could
interfere with proper sensor
operation.
WARNING - AIR BAG
"OFF" light
Do not allow an adult passenger
to ride in the front seat when the
PASS AIR BAG “OFF” indicator
is illuminated, because the air
bag will not deploy in the event
of a crash. The driver must
instruct the passenger to repo-
sition himself in the seat.
Failure to properly position
yourself may lead to airbag
deactivation resulting in airbag
non-deployment in a collision. If
the PASS AIR BAG “OFF” indi-
cator remains illuminated after
the passenger repositions
themselves properly and the
vehicle is restarted, it is recom-
mended the passenger move to
the rear seat because the pas-
senger's front air bag will not
deploy.

Safety features of your vehicle
54
3
Driver's and passenger's front
air bag
Your vehicle is equipped with a
Supplemental Restraint (Air Bag)
System and the lap/shoulder belts at
both the driver and passenger seat-
ing positions.
The indications of the system's pres-
ence are the letters "SRS AIR BAG"
embossed on the air bag pad cover
in the steering wheel, on the knee
bolster below the steering wheel col-
umn and the passenger's side front
panel pad above the glove box.
The SRS consists of air bags
installed under the pad covers in the
center of the steering wheel , in the
knee bolster below the steering
wheel column and the passenger's
side front panel above the glove box.
The purpose of the SRS is to provide
the vehicle's driver and/or the front
passenger with additional protection
than that offered by the seat belt sys-
tem alone in case of a frontal impact
of sufficient 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 SRSCM (SRS
Control Module) controls the air bag
inflation. Failure to properly wear
seat belts can increase the risk or
severity of injury in an accident.
OGD031030
OGD031031
OGD031032
■Driver’s knee air bag
■Driver’s front air bag
■
Passenger’s front air bag

359
Safety features of your vehicle
❈The actual air bags in the vehicle may differ
from the illustration.
Curtain air bag (if equipped)
Curtain air bags are located along
both sides of the roof rails above the
front and rear doors.
(Continued)
Do not use any accessory seat covers.
Use of seat covers could reduce or prevent the effec-
tiveness of the system.
Do not install any accessories on the side or near the side air
bag.
Do not place any objects over the air bag or between the air
bag and yourself. 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 (an umbrella, bag, etc.) between
the front door and the front
seat. Such objects may
become dangerous projectiles
and cause injury if the supple-
mental side air bag inflates.
(Continued)(Continued)
Do not put any objectsbetween 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.
To prevent unexpected deployment of the side impact
air bag that may result in per-
sonal injury, avoid impact to
the side impact sensor when
the ignition switch is on.
If the seat or seat cover is damaged, have the vehicle
checked and repaired by an
authorized HYUNDAI dealer
because your vehicle is
equipped with side impact air
bags and an occupant classi-
fication system.
OMD030042
OGD031044

361
Safety features of your vehicle
Why didn’t my air bag go off in a
collision? (Inflation and non-infla-
tion conditions of the air bag)
There are many types of accidents
in which the air bag would not be
expected to provide additional
protection.
These include rear impacts, sec-
ond or third collisions in multiple
impact accidents, as well as low
speed impacts.
Air bag collision sensors
(1) SRS control module
(2) Front impact sensor(3) Side impact sensor
(4) Side pressure impact sensor
OGDE035106/OGD031037/OGD031038/OGDE031056/ORB031018N
1234