SRSCM Hyundai Sonata 2009 Owner's Manual

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A110A01A-AAT
VEHICLE DATA COLLECTION AND EVENT DATA RECORDERS
Your Hyundai vehicle is equipped with many high technology, electronically controlled systems
that help to ensure your vehicle operates properly and provides the performance that you
expect. These systems utilize computers to monitor the operation of various systems and
components and help to control their operation. These computerized system operations are
wide-ranging and involve components to reduce emissions, to continuously evaluate the
readiness of the airbag and seat belt pretensioner systems, to determine when the airbag and
seat belt pre-tensioner systems should be deployed and then to activate the deployment, and
if equipped, to operate anti-lock braking, traction control and electronic stability control to assist
the driver to control the vehicle in difficult driving situations. These systems electronically store
information that is useful to service technicians when they need to diagnose and repair these
systems. Additional information is stored only when a crash occurs that results in the
deployment of the airbags or seat belt pre-tensioners. This type of data storage is done by
devices called event data recorders(EDR).
After a crash event, the airbag and seat belt pre-tensioner computer system, known as the
Supplemental Restraint System Control Module (SRSCM) or Airbag Control Unit (ACU), may
record some information about the condition of the vehicle and how it was being operated. This
information consists of data related to seat belt usage and if there was diagnostic information
in the airbag or seat belt systems at the time that a crash occurred, and if the ACU sensed that
a crash of sufficient severity occurred to require seat belt pre-tensioner or airbag deployment.
To retrieve this information, special equipment is needed and access to the vehicle or the device
that stores the data is required. Hyundai will not access information about a crash event or share
it with others except:
o in response to an official request of police or similar government office, or
o with the consent of the vehicle owner or, if the vehicle is leased, with the consent of the lessee,
or
o as part of Hyundai’s defense of litigation, or
o as required by law.

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FEATURES OF YOUR HYUNDAI
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The SRS uses sensors to gather
information about the driver's and front
passenger's seat position, the driver's and
front passenger's seat belt usage and
impact severity.
The driver's and front passenger's seat
track position sensors, which are installed
on the seat track, determine if the seats are
fore or aft of a reference position. The seat
belt buckle sensors determine if the driver
and front passenger's seat belts are
fastened. These sensors provide the ability
to control the SRS deployment based on
how close the driver's seat is to the steering
wheel, how close the passenger's seat is
to the instrument panel, whether or not the
seat belts are fastened, and how severe
the impact is.
The advanced SRS offers the ability to
control the airbag inflation with two levels.
A first stage level is provided for moderate-
severity impacts. A second stage level is
provided for more severe impacts.
According to the impact severity, seating
position and seat belt usage, the
SRSCM(SRS Control Module) controls the
airbag inflation. Failure to properly wear
seat belts can increase the risk or severity
of injury in an accident.
CAUTION:
If a seat track position sensor or an
occupant classification system is not
working properly, the SRS airbag warning
light
on the instrument panel will
illuminate because the SRS airbag
warning light is connected with the seat
track position sensor and the occupant
classification system. If the SRS airbag
warning light does not illuminate when
the ignition key is turned to the "ON"
position, remains illuminated after
approximately 6 seconds when the igni-
tion key is turned to the "ON" position, or
if it illuminates while the vehicle is being
driven, have an authorized Hyundai
dealer inspect the advanced SRS airbag
system as soon as possible.
!
Additionally, your Hyundai is equipped
with an occupant classification system 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
airbag under certain conditions. For more
detail, see "Occupant Classification
System" later in this section.
B240A03NF-AATDriver's and Passenger's Front
AirbagYour Hyundai is equipped with an
advanced Supplemental Restraint
(Airbag) System. The indications of the
system's presence are the letters "SRS
AIRBAG" embossed on the airbag pad
cover in the steering wheel and the
passenger's side front panel pad above
the glove box.
The Hyundai SRS consists of airbags
installed under the pad covers in the center
of the steering wheel 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 system alone in case of a
frontal impact of sufficient severity.Driver's Front Airbag
ONF038013

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

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FEATURES OF YOUR HYUNDAI
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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