The Head/Thorax airbag system (if equipped) consists
of the following:
²AIRBAG Readiness Light (shared with the front airbag
system)
²Front SeatÐ side mounted Head/Thorax Airbags Ð if
equipped
²Airbag Control Module (shared with the front airbag
system)
²Side impact sensors
How The Airbag System Works
²
TheOccupant Restraint Controller (ORC)determines
if a frontal collision is severe enough to require the
airbags to inflate. The front airbag inflators are de-
signed to provide different rates of airbag inflation
from direction provided by the ORC. The ORC mayalso modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.
The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or RUN positions. These include all of the
items listed above except the steering wheel and
column, and knee blocker panels. If the key is in the
OFF position, in the ACC position, or not in the
ignition, the airbags are not on and will not inflate.
During a moderate-to-severe rear impact the ORC may
deploy the seat belt pretensioners alone.
Also, the ORC turns on the AIRBAG warning
light and PAD indicator light in the instrument
panel for six to eight seconds for a self-check
when the ignition is first turned on. After the
self-check, the AIRBAG warning light will turn off. The
PAD indicator light will function normally (Refer to
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
9Passenger Airbag Disable (PAD) Indicator Light9in this
section). If the ORC detects a malfunction in any part of
the system, it turns on the AIRBAG warning light either
momentarily or continuously. A single chime will sound
if the light comes on again after initial start up.
WARNING!
Ignoring the AIRBAG light in your instrument panel
could mean you won't have the airbags to protect you
in a collision. If the light does not come on, stays on
after you start the vehicle, or if it comes on as you
drive, have the airbag system checked right away.
²When the front airbag control module detects a colli-
sion requiring the front airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. The front airbag covers sepa-
rate and fold out of the way as the front airbags inflateto their full size. The front airbags fully inflate in about
50 milliseconds. This is only about half of the time it
takes you to blink your eyes. The front airbags then
quickly deflate while helping to restrain the driver and
front passenger. The driver's and passenger's front
airbag gas is vented through holes in the sides of the
airbag. In this way the front airbags do not interfere
with your control of the vehicle.
²ThePassenger Airbag Disable (PAD) Indicator Light
(an amber light located in the center of the instrument
panel) tells the driver and front passenger when the
front passenger airbag is turned off. The PAD Indica-
tor lamp illuminates the words9PASS AIRBAG OFF9
to show that the front passenger airbag will not inflate
during a collision requiring airbags. When the right
front passenger seat is empty or when very light
objects are placed on the seat, the passenger airbag
will not inflate even though the PAD indicator lamp is
not illuminated.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 61
2
²The PAD indictor light should not be illu-
minated when an adult passenger is prop-
erly seated in the front passenger seat. In
this case, the airbag is ready to be inflated if
a collision requiring an airbag occurs.
For all other occupants, the PAD indicator light will be
illuminated indicating that the front passenger airbag
is turned off and will not inflate.NOTE:Even though this vehicle is equipped with an
occupant classification system, children 12 years and
under should always ride buckled up in a rear seat in an
appropriate child restraint (see section on child re-
straints).
WARNING!
Never place a rear facing infant seat in front of an
airbag. A deploying passenger airbag can cause death
or serious injury to a child in a rear facing infant seat.
Passenger Airbag Disabled Light
62 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Passenger Airbag Disable (PAD) System
Front Passenger Indicator Light Airbag Status
Adult OFF ON
Child ON OFF
Grocery Bags,
Heavy Briefcases
and Other Rela-
tively Light Ob-
jectsON OFF
Empty or Very
Small ObjectsOFF* OFF
* Since the system senses weight, some small objects
will turn the PAD Indicator Light on.
Drivers and adult passengers should verify that the PAD
Indicator Light is not illuminated when an adult is riding
in the front passenger seat. If an adult occupant's weight
is transferred to another part of the vehicle (like the door
or instrument panel), the weight sensors in the seat maynot properly classify the occupant. Objects lodged under
the seat or between the seat and the center console can
prevent the occupant's weight from being measured
properly and may result in the occupant being improp-
erly classified. Ensure that the front passenger seat back
does not touch anything placed on the second row of
seats because this can also affect occupant classification.
Also, if you fold down the seats in the second row check
to be sure they don't touch the front passenger seat.
If the front passenger seat is damaged in any way, it
should only be serviced by an authorized dealer. If the
seat is removed (or even if the seat attachment bolts are
loosened or tightened in any way), take the vehicle to an
authorized dealer.
If there is a fault present in the Airbag Warning Light (a
red light located in the center of the instrument cluster
directly in front of the driver) will be turned on. This
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63
2
indicates that you should take the vehicle to an autho-
rized dealer. The Airbag Warning Light is turned on
whenever there is fault that can affect the operation of the
airbag system. If there is a fault present in the PAD
Indicator Light the Airbag Warning Light remains illu-
minated to show that the passenger airbag is turned off
until the fault is cleared. If an object is lodged under the
seat and interferes with operation of the weight sensors,
a fault will occur which turns on both the PAD Indicator
Light and the Airbag Warning Light. Once the lodged
object is removed, the fault will be automatically cleared
after a short period of time.
²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. Different airbag inflation ratesmay be possible based on collision severity and occu-
pant size. The steering wheel hub trim cover and the
upper right side of the instrument panel separate and
fold out of the way as the bags inflate to their full size.
The bags fully inflate in about 50 - 70 milliseconds.
This is about half of the time it takes to blink your eyes.
The bags then quickly deflate while helping to restrain
the driver and front passenger. The driver's front
airbag gas is vented through vent holes in the sides of
the airbag. The passenger's front airbag gas is vented
through vent holes in the sides of the airbag. In this
way the airbags do not interfere with your control of
the vehicle.
²TheOccupant Classification Module (OCM)is lo-
cated beneath the front passenger seat. The OCM
classifies the occupant into categories based on the
measurements made by the seat weight sensors. The
OCM communicates with the ORC. The ORC uses the
occupant category to determine whether the front
64 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
passenger airbag should be turned off. It also deter-
mines the rate of airbag inflation during a collision.
²Your vehicle has fourWeight Sensorslocated between
the seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
²TheHead/Thorax Side AirbagsÐIf Equipped (SRS)
are designed to activate only in certain side collisions.
The ORC module determines if a side collision is
severe enough to require the Head/Thorax airbags to
inflate. The side airbag control module will not detect
roll over, front or rear collisions.
The ORC Module monitors the readiness of the electronic
parts of the system whenever the ignition switch is in the
START or ON positions. These include all of the items
listed underªThe Head/Thorax side airbag system
consists of the followingº.In moderate to severe side collisions the inflating Head/
Thorax airbag exits through the seat seam into the space
between the occupant and the door. The Head/Thorax
airbag moves at a very high speed and with such a high
force, that it could injure you if you are not seated
properly, or if items are positioned in the area where the
airbag inflates. This especially applies to children.
The following requirements must be strictly adhered to:
²Do not modify the front passenger seat assembly or
components in any way.
²Do not modify the front seat center console or center
position seat in any way.
²Do not use prior or future model year seat covers not
designated for the specific model being repaired. Al-
ways use the correct seat cover specified for the
vehicle.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 65
2
addition to crash investigations initiated by
DaimlerChrysler, such investigations may be requested
by customers, insurance carriers, government officials,
and professional crash researchers, such as those associ-
ated with universities, and with hospital and insurance
organizations.
In the event that an investigation is undertaken by
DaimlerChrysler (regardless of initiative), the company
or its designated representative will first obtain permis-
sion of the appropriate custodial entity for the vehicle
(usually the vehicle owner or lessee) before accessing the
electronic data stored, unless ordered to download data
by a court with legal jurisdiction (i.e., pursuant to a
warrant). A copy of the data will be provided to the
custodial entity upon request. General data that does not
identify particular vehicles or crashes may be released for
incorporation in aggregate crash databases, such as those
maintained by the US government and various states.
Data of a potentially sensitive nature, such as wouldidentify a particular driver, vehicle, or crash, will be
treated confidentially. Confidential data will not be dis-
closed by DaimlerChrysler to any third party except
when:
1. Used for research purposes, such as to match data
with a particular crash record in an aggregate database,
provided confidentiality of personal data is thereafter
preserved
2. Used in defense of litigation involving a
DaimlerChrysler product
3. Requested by police under a legal warrant
4. Otherwise required by law
Data Parameters that May Be Recorded:
²Diagnostic trouble code(s) and warning lamp status
for electronically-controlled safety systems, including
the airbag system
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71
2
The Head/Thorax airbag system (if equipped) consists
of the following:
²AIRBAG Readiness Light (shared with the front airbag
system)
²Front SeatÐ side mounted Head/Thorax Airbags Ð if
equipped
²Airbag Control Module (shared with the front airbag
system)
²Side impact sensors
How The Airbag System Works
²
TheOccupant Restraint Controller (ORC)determines
if a frontal collision is severe enough to require the
airbags to inflate. The front airbag inflators are de-
signed to provide different rates of airbag inflation
from direction provided by the ORC. The ORC mayalso modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.
The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or RUN positions. These include all of the
items listed above except the steering wheel and
column, and knee impact blockers. If the key is in the
OFF position, in the ACC position, or not in the
ignition, the airbags are not on and will not inflate.
During a moderate-to-severe rear impact the ORC may
deploy the seat belt pretensioners alone.
Also, the ORC turns on the AIRBAG warning
light and PAD indicator light in the instrument
panel for six to eight seconds for a self-check
when the ignition is first turned on. After the
self-check, the AIRBAG warning light will turn off. The
PAD indicator light will function normally (Refer to
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 95
2