sensor Hyundai Santa Fe 2017 Owner's Manual

Safety features of your vehicle
38
3
✽
✽
NOTICE
• Both the driver's and front pas-
senger's seat belt pre-tensioner
system may be activated not only
in certain frontal collision but also
in certain side collision or rollover,
if the vehicle is equipped with a
side or curtain air bag.
• 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.CAUTION
If the pre-tensioner seat belt
system are not working proper-ly, this warning light will illumi-nate even if there is no malfunc-tion of the SRS air bag. If theSRS air bag warning light blinksor does not illuminate when theignition switch is turned ON, or ifit remains illuminated after illu-minating for approximately 6seconds, or if it illuminates whilethe vehicle is being driven, havean authorized HYUNDAI dealerinspect the pre-tensioner seatbelt and SRS air bag system assoon as possible.
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.

Safety features of your vehicle
54
3
How does the air bag system
operate
Air bags are activated (able to
inflate if necessary) only when the
ignition switch is turned to the ON
or START position.
The appropriate air bags inflate instantly in the event of serious
frontal or side collision 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 addition to inflating in serious side collisions, side and/or curtain
air bags will inflate if the sensing
system detects a rollover.
When a rollover is detected, side and/or curtain air bags will remain
inflated longer to help provide pro-
tection from ejection, especially
when used in conjunction with the
seat belts.
In order to help provide protection, the air bags must inflate rapidly.
The speed of air bag inflation is a
consequence of the extremely
short time in which to inflate the air
bag between the occupant and the
vehicle structures before the occu-
pant 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, 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,
especially if the occupant is
positioned excessively close to
the air bag.

357
Safety features of your vehicle
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 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. Pressure type side impact sensors 10. "PASSENGER 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. Driver's knee air bag module
14. Acceleration type side impact sensors
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.
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Safety features of your vehicle
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3
When an adult is seated in the front
passenger seat, if the PASSENGER
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, cen-
tered on the seat cushion with their
seat belt on, legs comfortably
extended and their feet on the floor).
Restart the engine and have the per-
son 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 about 4 sec-
onds after the ignition switch is
turned to the ON position or after
the engine is started. If the front
passenger seat is occupied, the occu-
pant classification sensor will then
classify the front passenger 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
PASSENGER 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 reposition himself
in the seat. Failure to properly
position yourself may lead to air
bag deactivation resulting in air
bag non-deployment in a colli-
sion. If the PASSENGER AIR
BAG "OFF" indicator remains
illuminated after the passenger
repositions themselves proper-
ly and the vehicle is restarted, it
is recommended the passenger
move to the rear seat because
the passenger's front air bag
will not deploy.

367
Safety features of your vehicle
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 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.
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.
Additionally, your vehicle is equipped
with an occupant classification sys-
tem in the front passenger's seat.
The occupant classification system
detects the presence of a passenger
in the front passenger's seat and will
turn off the front passenger's air bag
under certain conditions. For more
detail, see "Occupant classification
system" in this section.

Safety features of your vehicle
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Curtain air bag
❈ The actual air bags in the vehicle may differ
from the illustration.
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.
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.
To prevent unexpected deploy- ment of the side air bag that
may result in personal injury,
avoid impact to the side impact
sensor when the ignition
switch is on.
(Continued)(Continued)
If the seat or seat cover isdamaged, have the vehicle
checked and repaired by an
authorized HYUNDAI dealer
because your vehicle is
equipped with side air bags
and an occupant classifica-
tion system.
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Safety features of your vehicle
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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 /
Rollover sensor
(2) Front impact sensor (3)
Pressure type side impact sensor
(4) Acceleration type side impact
sensor
ONC036001/ONC037006N/ONC036002/OANNSA2038/ODM032048
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375
Safety features of your vehicle
Problems may arise if the sensorinstallation angles are changed
due to the deformation of the front
bumper, body or C pillars or front
door where side collision sensors
are installed. Have the vehicle
checked and repaired by an
authorized HYUNDAI dealer.
Your vehicle has been designed to absorb impact and deploy the air
bag(s) in certain collisions. Installing
bumper guards or side steppers or
replacing a bumper with non-gen-
uine parts may adversely affect your
vehicle’s collision and air bag
deployment performance.Air bag inflation conditions
Front air bags
Front air bags are designed to inflate
in a frontal collision depending on
the intensity, speed or angles of
impact of the front collision.
WARNING - Air bag
sensors
Do not hit or allow any objects to impact the locations where
air bags or sensors are
installed.
This may cause unexpected
air bag deployment, which
could result in serious per-
sonal injury or death.
If the installation location or angle of the sensors is altered
in any way, the air bags may
deploy when they should not
or they may not deploy when
they should, causing severe
injury or death.
Therefore, do not try to per-
form maintenance on or
around the air bag sensors.
Have the vehicle checked and
repaired by an authorized
HYUNDAI dealer.
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Safety features of your vehicle
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❈ The actual air bags in the vehicle may dif-
fer from the illustration.
Side and curtain air bags
Side and curtain air bags are
designed to inflate when an impact is
detected by side collision sensors
depending on the strength, speed or
angles of impact resulting from a
side impact collision.
Also, the side and curtain air bags
are designed to inflate when a
rollover is detected by the rollover
sensor.
Although the front air bags (driver’s
front, knee and front passenger’s air
bags) are designed to inflate in frontal
collisions, they also may inflate in
other types of collisions if the front
impact sensors detect a sufficient
frontal force in another type of impact.
Side and curtain air bags are
designed to inflate in certain side
impact collisions. They may inflate in
other type of collisions where a side
force is detected by the sensors. Side air bags and/or curtain air bags
may also inflate where rollover sen-
sors indicate the possibility of a
rollover occurring (even if none actual-
ly occurs) or in other situations, inclu-
iding when the vehicle is tilted while
being towed. Even where side and/or
curtain air bags would not provide
impact protection in a rollover, howev-
er, they will deploy to prevent ejection
of occupants, especially those who
are restrained with seat belts.
If the vehicle chassis is impacted by
bumps or objects on unimproved
roads, the air bags may deploy. Drive
carefully on unimproved roads or on
surfaces not designed for vehicle traf-
fic to prevent unintended air bag
deployment.
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Safety features of your vehicle
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In an angled collision, the force of
impact may direct the occupants in
a direction where the air bags would
not be able to provide any addition-
al benefit, and thus the SRS may
not deploy any air bags. Just before impact, drivers often
brake heavily. Such heavy braking
lowers the front portion of the vehi-
cle causing it to "ride" under a vehi-
cle with a higher ground clearance.
Air bags may not inflate in this
"under-ride" situation because
forces that are detected by sensors
may be reduced by such "under-
ride" collisions. Front air bags may not inflate in
rollover accidents where the
SRSCM indicates that the SRSCM
indicates that the front air bag
deployment would not provide
additional occupant protection.
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