Hyundai Sonata 2009 Workshop Manual

1FEATURES OF YOUR HYUNDAI38
12. Side Impact Airbag Module
13. Curtain Airbag Module
The SRSCM continually monitors all
elements while the ignition is "ON" to
determine if a frontal or near-frontal impact
is severe enough to require airbag
deployment or pre-tensioner seat belt
deployment.
The SRS airbag warning light on the in-
strument panel will illuminate for about 6
seconds after the ignition key is turned to
the "ON" position or after the engine is
started, after which the airbag warning
light should go out.
!
WARNING:
o Sitting improperly or out of position
can result in serious or fatal injury in
a crash. All occupants should sit
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
until the vehicle is parked and the
ignition key is removed.
o The SRS airbag system must deploy
very rapidly to provide protection in a
crash. If an occupant is out of position
because of not wearing a seat belt, the
airbag may forcefully contact the oc-
cupant causing serious or fatal
injuries.
B240B03NF-AATSRS Components and FunctionsThe SRS consists of the following compo-
nents:
1. Front Impact Sensor
2. "PASSENGER AIR BAG OFF" Indicator
(Front passenger's seat only)
3. SRS air bag warning light
4. Knee Bolster
5. Passenger's Airbag Module
6. Driver's Airbag Module
7. SRS Control Module (SRSCM)
8. Occupant Classification System
(Front passenger's seat only)
9. Driver's Seat Track Position Sensor
10. Side Impact Sensor
11. Retractor Pre-tensioner Assemblies
B240B01NF-B
B240B01L

1
FEATURES OF YOUR HYUNDAI
39
B240B02L
Upon deployment, tear seams molded
directly into the pad covers will separate
under pressure from the expansion of the
airbags. Further opening of the covers
then allows full inflation of the airbags.A fully inflated airbag, in combination with
a properly worn seat belt, slows the driver's
forward motion, reducing the risk of head
and chest injury.
After complete inflation, the airbag
immediately starts deflating, enabling the
driver to maintain forward visibility and the
ability to steer or operate other controls.
B240B03L
The airbag modules are located both in the
center of the steering wheel and in the front
passenger's panel above the glove box.
When the SRSCM detects a sufficiently
severe impact to the front of the vehicle, it
will automatically deploy the front airbags.
CAUTION:
o Do not install or place any accesso-
ries (drink holder, cassette holder,
sticker, etc.) on the front passenger's
panel above the glove box in a vehicle
with a passenger's airbag. Such ob-
jects may become dangerous pro-
jectiles and cause injury if the
passenger's airbag inflates.
o When installing a container of liquid
air freshener inside the vehicle, do
not place it near the instrument cluster
nor on the instrument panel surface.
If there is any leakage from the air
freshener onto these areas
(instrument cluster, instrument panel
or air ventilator), it may damage these
!
ONF038014
Passenger's Front Airbag

1FEATURES OF YOUR HYUNDAI40
B990A02NF-AATOCCUPANT CLASSIFICATION SYS-
TEMYour vehicle is equipped with an occupant
classification system in the front
passenger's seat.
The occupant classification system is
designed to 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
driver's front air bag is not affected or
controlled by the occupant classification
system.
If the front passenger seat is occupied by
a person that the system determines to be
of adult size, and he/she sits properly (sitting
upright with the seatback in an upright
ONF038024N
!Passenger's Front Airbag
B240B05L
!Always wash all exposed skin areas
thoroughly with lukewarm water and
a mild soap after an accident in which
the airbags were deployed.
o The SRS can function only when the
ignition key is in the "ON" position. If
the SRS airbag warning light does not
illuminate, or continuously remains
on after illuminating for about 6
seconds when the ignition key is
turned to the "ON" position, or after
the engine is started, comes on while
driving, the SRS is not working
properly. If this occurs, have your
vehicle immediately inspected by
your Hyundai dealer.
o Before you replace a fuse or discon-
nect a battery terminal, turn the igni-
tion key to the "LOCK" position and
remove the ignition key. Never remove
or replace the airbag related fuse(s)
when the ignition key is in the "ON"
position. Failure to heed this warning
will cause the SRS airbag warning
light to illuminate. parts. If the liquid from the air fresh-
ener does leak onto these areas, wash
them with water immediately.
WARNING:
o If an airbag deploys, there may be a
loud noise followed by a fine dust
released in the vehicle. These
conditions are normal and are not
hazardous - the airbags are packed in
this fine powder. The dust generated
during airbag deployment may cause
skin or eye irritation as well as
aggravate asthma for some persons.
WARNING:

1
FEATURES OF YOUR HYUNDAI
41
!
position, centered on the seat cushion with
their seat belt on, legs comfortably extended
and their feet on the floor), the
"PASSENGER AIR BAG OFF" indicator
will be turned off and the front passenger's
air bag will be able to inflate, if necessary,
in frontal crashes.
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.
Condition and operation in the front pas-
senger occupant classification system*1) The 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.
*2) Do not allow children to ride in the front
passenger seat. When a larger child
who has outgrown a child restraint
system sits in the front passenger seat,
the system may recognize him/her as
an adult depending on his/her phy-
sique or posture.
*3) Never install a child restraint system on
the front passenger seat.
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 occupant
classification system (OCS).
o Never place feet on the front
passenger seatback.
OVQ036014N
o Never put a heavy load in the front
passenger seat or seatback pocket.
OVQ036013N
Front
passenger
airbag
Activated
Deactivated
Deactivated
Activated Condition
detected by
the occupant
classification
system
1. Adult*
1
2. Child*
2 or
child restraint
system*3
3. Unoccupied
4. There is a
malfunction
in the
systemSRS
warning
light
Off
Off
Off
On
"Passenger
air bag off"
indicator light
Off
On
On
Off

1FEATURES OF YOUR HYUNDAI42
When an adult is seated in the front
passenger seat, if the "PASSENGER AIR
BAG OFF" indicator is on, turn the ignition
key to "LOCK" 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.
o Never excessively recline the front
passenger seatback.
1KMN3665
1KMN3662
o Never place feet on the dashboard.
o Never sit with hips shifted towards
the front of the seat.
1KMN3663
1KMN3664
o Never lean on the center console.
o Never sit on one side of the front
passenger seat.
Proper position
B990A01O

1
FEATURES OF YOUR HYUNDAI
43
!
!
NOTE:The "PASSENGER AIR BAG OFF"
indicator illuminates for about 4 seconds
after the ignition key 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
passenger after several more seconds.
!
WARNING:
If the occupant classification system is
not working properly, the SRS air bag
warning light on the instrument panel will
illuminate because the passenger's front
air bag is connected with the occupant
classification system. If there is a mal-
function of the occupant classification
system, the "PASSENGER AIR BAG
OFF" indicator will not illuminate and the
passenger's front air bag will inflate in
frontal impact crashes even if there is no
occupant in the front passenger's seat.
If the SRS air bag warning light does not
illuminate when the ignition key is turned
to the "ON" position, remains illumi-
nated after approximately 6 seconds
when the ignition key is turned to the
"ON" position, or if it illuminates while
the vehicle is being driven, have an au-
thorized Hyundai dealer inspect the oc-
cupant classification system and the
SRS air bag system as soon as possible. If the "PASSENGER AIR BAG OFF" indica-
tor is still on, ask the passenger to move to
the rear seat.
WARNING:
Do not allow an adult passenger to ride
in the front seat when the “PASSENGER
AIRBAG OFF” indicator is illuminated,
because the airbag will not deploy in the
event of a crash. If the "PASSENGER
AIR BAG OFF" indicator remains
illuminated after the passenger reposi-
tions themselves properly and the car is
restarted, Hyundai recommends that
passenger move to the rear seat
because the passenger's front airbag
will not deploy.
The “PASSENGER AIR BAG OFF”
indicator will not change according to
the occupants posture after the vehicle
has been running for 30 seconds. Front
seat passengers must stay properly
seated to avoid serious injury from a
deploying airbag. For more information
see page 1-42.
WARNING:
Do not put a heavy load in the front
passenger seatback pocket or on the
front passenger seat. Do not hang onto
the front passenger seat. Do not hang
any items such as seatback table on the
front passenger seatback. Do not place
feet on the front passenger seatback.
Do not place any items under the front
passenger seat. Any of these could
interfere with proper sensor operation.

1FEATURES OF YOUR HYUNDAI44
!
WARNING:
o Even though your vehicle is equipped
with the occupant classification sys-
tem, never install a child restraint
system in the front passenger's seat.
A deploying air bag can forcefully
strike a child resulting in serious
injuries or death. Any child age 12 and
under should ride in the rear seat.
Children too large for child restraints
should use the available lap/shoulder
belts. No matter what type of crash,
children of all ages are safer when
restrained in the rear seat.
o If the "PASSENGER AIR BAG OFF"
indicator is illuminated when the front
passenger's seat is occupied by an
adult and he/she sits properly (sitting
upright with the seatback in an upright
position, centered on the seat cushion
with their seat belt on, legs comfortably
extended and their feet on the floor),
have that person sit in the rear seat.
o Do not modify or replace the front
passenger seat. Don't place anything
on or attach anything such as a blanket
or after market seat heater to the
front passenger seat. This can
adversely affect the occupant
classification system.
o Do not sit on sharp objects such as tools
when occupying the front passenger
seat. This can adversely affect the occu-
pant classification system.
o Do not use accessory seat covers on
the front seats.
o Accident statistics show that children
are safer if they are restrained in the
rear, as opposed to the front seat. It is
recommended that child restraints be
secured in a rear seat, including an infant
riding in a rear-facing infant seat, a child
riding in a forward-facing child seat and
an older child riding in a booster seat.
o Air bags can only be used once – have
an authorized Hyundai dealer replace
the air bag immediately after
deployment.
o A smaller-stature adult who is not seated
correctly (for example: seat excessively
reclined, leaning on the center console,
or hips shifted forward in the seat) can
cause a condition where the advanced
frontal air bag system senses less
weight than if the occupant were seated
properly (sitting upright with the seatback
in an upright position, centered on the
seat cushion with their seat belt on, legs
comfortably extended and their feet on
the floor). This condition can result in an
adult potentially being misclassified and
illumination of the "PASSENGER AIR
BAG OFF" indicator.
B990B05Y-AATSide Impact AirbagYour Hyundai is equipped with a side
impact airbag in each front seat. The
purpose of the airbag is to provide the
vehicle's driver and/or the front passenger
with additional protection than that offered
by the seat belt alone. The side impact
airbags are designed to deploy only during
certain side-impact collisions, depending
on the crash severity, angle, speed and
point of impact. The side impact airbags
are not designed to deploy in all side
impact situations.
B990B02LZ

1
FEATURES OF YOUR HYUNDAI
45
!
o For best protection from the side im-
pact airbag system and to avoid being
injured by the deploying side impact
airbag, both front seat occupants
should sit in an upright position with
the seat belt properly fastened. The
driver's hands should be placed on
the steering wheel at the 9:00 and
3:00 positions. The passenger's arms
and hands should be placed on their
laps.
o Do not use any accessory seat covers.
o Use of seat covers could reduce or
prevent the effectiveness of the sys-
tem.
o Do not install any accessories on the
side or near the side impact airbag.
o Do not place any objects over the
airbag or between the airbag and
yourself.
o Do not place any objects (an umbrella,
bag, etc.) between the front door and
the front seat. Such objects may be-
come dangerous projectiles and
cause injury if the supplemental side
impact airbag inflates.
o To prevent unexpected deployment
of the side impact airbag that may
result in personal injury, avoid impact
to the side impact sensor when the
ignition key is on.
WARNING:
WARNING:
o The side impact airbag is
supplemental to the driver's and the
passenger's seat belt systems and is
not a substitute for them. Therefore
your seat belts must be worn at all
times while the vehicle is in motion.
The airbags deploy only in certain
side impact conditions severe enough
to cause significant injury to the
vehicle occupants.
!
ONF038022
Side impact
sensor
B990C01LZ-GATCurtain AirbagCurtain airbags 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 airbags are designed to deploy
only during certain side impact collisions,
depending on the crash severity, angle,
speed and impact. The curtain airbags are
not designed to deploy in all side impact
situations, collisions from the front or rear
of the vehicle or in most rollover situations.
HLZ2051
Curtain Airbag

1FEATURES OF YOUR HYUNDAI46
o If the airbags inflate, they must be
replaced by an authorized Hyundai
dealer.
o Do not tamper with or disconnect SRS
wiring, or other components of the
SRS system. Doing so could result in
injury, due to accidental inflation of
the airbags or by rendering the SRS
inoperative.
o If components of the airbag system
must be discarded, or if the vehicle
must be scrapped, certain safety
precautions must be observed. Your
Hyundai dealer knows these precau-
tions and can give you the necessary
information. Failure to follow these
precautions and procedures could in-
crease the risk of personal injury.
o If your car was flooded and has soaked
carpeting or water on flooring, you
shouldn't try to start the engine; have
the car towed to an authorized Hyundai
dealer.
!
WARNING:
B240C03NF-AATSRS CareThe SRS is virtually maintenance-free and
so there are no parts you can safely service
by yourself. If the SRS airbag warning light
does not illuminate, or continuously re-
mains on, have your vehicle immediately
inspected by your Hyundai dealer.
Any work on the SRS system, such as
removing, installing, repairing, or any work
on the steering wheel must be performed
by a qualified Hyundai technician. Improper
handling of the SRS system may result in
serious personal injury.
WARNING:
o Do not install a child restraint system
in the front passenger seat position.
A child restraint system must never
be placed in the front seat. The infant
or child could be severely injured by
an airbag deployment in case of an
accident.
o Modification to SRS components or
wiring, including the addition of any
kind of badges to the pad covers or
modifications to the body structure,
can adversely affect SRS perfor-
mance and lead to possible injury.
o For cleaning the airbag pad covers,
use only a soft, dry cloth or one which
has been moistened with plain water.
Solvents or cleaners could adversely
affect the airbag covers and proper
deployment of the system.
o No objects should be placed over or
near the airbag modules on the
steering wheel, instrument panel, and
the front passenger's panel above
the glove box, because any such
object could cause harm if the vehicle
is in a crash severe enough to cause
the airbags to inflate.
!
HSM393

1
FEATURES OF YOUR HYUNDAI
47
B240D02NF-AATAdditional Safety PrecautionsoNever let passengers ride in the cargo
area (trunk) or on top of a folded-down
back seat. All occupants should sit
upright, fully back in their seats with
their seat belts on and their feet on the
floor.
oPassengers should not move out of or
change seats while the vehicle is mov-
ing. A passenger who is not wearing a
seat belt during a crash or emergency
stop can be thrown against the inside of
the vehicle, against other occupants, or
out of the vehicle.
oEach seat belt is designed to restrain
one occupant. If more than one person
uses the same seat belt, they could be
seriously injured or killed in a collision.
oDo not use any accessories on seat
belts. Devices claiming to improve oc-
cupant comfort or reposition the seat
belt can reduce the protection provided
by the seat belt and increase the chance
of serious injury in a crash.oPassengers should not place hard or
sharp objects between themselves
and the airbags. Carrying hard or sharp
objects on your lap or in your mouth can
result in injuries if an airbag inflates.
oKeep occupants away from the airbag
covers. All occupants should sit upright,
fully back in their seats with their seat
belts on and their feet on the floor. If
occupants are too close to the airbag
covers, they could be injured if the
airbags inflate.
oDo not attach or place objects on or
near the airbag covers. Any object
attached to or placed on the front or side
impact airbag covers could interfere
with the proper operation of the airbags.
oDo not modify the front seats. Modifi-
cation of the front seats could interfere
with the operation of the supplemental
restraint system sensing components
or side impact airbags.
oDo not place items under the front
seats. Placing items under the front
seats could interfere with the operation
of the supplemental restraint system
sensing components and wiring
harnesses.
!
WARNING:
o Sitting improperly or out of position
can cause occupants to be shifted too
close to a deploying airbag, strike the
interior structure or be thrown from
the vehicle resulting in serious injury
or death.
o Always sit upright with the seatback
in an upright position, centered on the
seat cushion with your seat belt on,
legs comfortably extended and your
feet on the floor. oNever hold an infant or child on your
lap. The infant or child could be seriously
injured or killed in the event of a crash.
All infants and children should be
properly restrained in appropriate child
safety seats or seat belts in the rear seat.Adding Equipment to or Modifying
Your Airbag-Equipped Vehicle.If you modify your vehicle by changing
your vehicle's frame, bumper system, front
end or side sheet metal or ride height, this
may affect the operation of your vehicle's
airbag system.