Air Bag System Components
The airbag system consists of the following:
•Occupant Restraint Controller
•Side Remote Acceleration Sensors (If Equipped)
•Airbag Warning Light
•Driver Airbag
•Passenger Airbag
•Window Bags above Side Windows (If Equipped)
•Steering Wheel and Column
•Instrument Panel
•Interconnecting Wiring
•Knee Impact Bolsters
•Front Acceleration Sensors
•Driver and Front Passenger Seat Belt Pretensioners
•Occupant Classification System (OCS) for the Front
Passenger Seat
Occupant Classification Module
Passenger Airbag Disable (PAD) Indicator Light
Weight Sensors
How the Airbag System Works
•
The Occupant 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 may
also modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.
44 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
For almost all properly installed rear facing child re-
straints, the PAD indicator light will be illuminated
indicating that the front passenger airbag is turned off
and will not inflate. If the PAD indicator light is not
illuminated, DO NOT assume the air bag is turned off
and move the child restraint to the second row of seats (if
equipped). A deploying passenger air bag can cause
death or serious injury to a child in a rear facing infant
seat. For vehicles with a manual on/off switch, the
passenger frontal airbag can be manually turned off. See
section on how to use the switch later in this section.
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 (if
equipped) in an appropriate child restraint (see section
on child restraints).
Front Passenger Seat Occupant Passenger
Airbag Disable
(PAD) Indicator Light Airbag Status
Adult OFF ON
Grocery Bags,
Heavy Briefcases and Other Rela-
tively Light Ob- jects ON OFF
Empty or Very Light Objects OFF* OFF
* Since the system senses weight, some small objects will turn the PAD Indicator Light on.
The OCS classifies an occupant using weight sensors
mounted in the base of the front passenger seat. Objects
hanging on the seat or other passengers pushing down
on the seat will also be sensed. The weight of an adult
will cause the system to turn the airbag on. In this case,
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 47
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the OCS has classified the occupant of the seat as an
adult. An adult occupant needs to sit in a normal position
(with their feet on or near the floor) in order to be
properly classified. Reclining the seat back too far may
change how an occupant is classified by the OCS.
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 may
not 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 behind the front passen-
ger seat because this can also affect occupant classifica-
tion. 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 OCS, 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 indicates that you should take the vehicle to an
authorized 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 OCS, both
the PAD Indicator Light and the Airbag Warning Light
are illuminated 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
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
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.
•The Driver and Passenger Airbag/Inflator Units are
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 rates
may 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.•The
Occupant 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 Occupant Restraint Con-
troller (ORC). The ORC uses the occupant category to
determine whether the front passenger airbag should
be turned off. It also determines the rate of airbag
inflation during a collision.
•The Passenger Airbag Disabled (PAD) Indicator
Light indicates to the driver and passenger when the
airbag is turned OFF. In the presence of a properly
seated occupant, when the PAD indicator light is
illuminated, the airbag is OFF. Also, when the Occu-
pant Classification System detects either an empty seat
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 49
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or a weight less than the predetermined threshold, the
ORC will not illuminate the PAD indicator light even
though the airbag is turned OFF.
•Your vehicle has four Weight Sensorslocated within
the seat structure or between the seat tracks and
cushion frame. The weight sensors measure applied
weight and transfers that information to the OCM.
•The Side Impact SRS Window Bags are designed to
activate only in certain side collisions. When the ORC
(with side impact option) detects a collision requiring
the window bags to inflate, it signals the inflators on
the crash side of the vehicle. A quantity of nontoxic gas
is generated to inflate the window bag. The inflating
window bag pushes the outside edge of the headliner
out of the way and covers the window. The airbag
forcefully inflates in about one quarter of the time it
takes to blink your eye. Make sure you are seated and
belted properly and do not position items in the area where the window bag inflates. This especially applies
to children. The window bag is only about 3-1/2
inches (9 cm) thick when it is inflated.
•The
Knee Impact Bolsters help protect the knees of
the driver and the front passenger, and position every-
one for the best interaction with the front airbag.
•The front passenger seat assembly contains critical
components that affect the front passenger airbag
deployment. Correctly functioning front passenger
seat components are critical for the Occupant Classifi-
cation System (OCS) to properly classify the front
passenger and calculate the proper airbag deploy-
ment. Do not make any modifications to the front
passenger seat components, assembly, or to the seat
cover. The following requirements must be strictly
adhered to:
•Do not modify the front passenger seat assembly or
components in any way.
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Maintaining Your Airbag System
WARNING!
•Modifications to any part of the airbag system could cause it to fail
when you need it. You could be injured if the airbag system is not
there to protect you. Do not modify the components or wiring,
including adding any kind of badges or stickers to the steering
wheel hub trim cover or the upper right side of the instrument
panel. Do not modify the front bumper, vehicle body structure, or
add aftermarket side steps or running boards.
•Do not attempt to modify any part of your advanced airbag system.
The airbag may inflate accidentally or may not function properly if
modifications are made. Take your vehicle to an authorized dealer for
any advanced airbag system service. If your seat including your trim
cover and cushion needs to be serviced in any way (including removal
or loosening/tightening of seat attachment bolts), take the vehicle to
your authorized dealer. Only manufacturer approved seat accessories
may be used. If it is necessary to modify an advanced airbag system
for persons with disabilities, contact your authorized dealer.
•Do not place or hang any items such as add-on video players on the
right front passenger seat back. The additional weight may cause
the Occupant Classification System to be unable to correctly classify
the right front occupant. This could allow the passenger frontal
airbag to inflate when it is not desired.
•You need proper knee impact protection in a collision. Do not
mount or locate any aftermarket equipment on or behind the knee
bolsters.
•It is dangerous to try to repair any part of the airbag system yourself.
Be sure to tell anyone who works on your vehicle that it has an
airbag system.
Enhanced Accident Response System
If the airbags deploy after an impact and the electrical
system remains functional, vehicles equipped with
power door locks will unlock automatically. In addition,
approximately 5 seconds after the vehicle has stopped
moving, the interior lights will light until the ignition
switch is turned off.
Airbag Light
You will want to have the airbags ready to
inflate for your protection in an impact. While
the airbag system is designed to be mainte-
nance free, if any of the following occurs, have
an authorized dealer service the system promptly:
•The airbag light does not come on or flickers during
the 6 to 8 seconds when the ignition switch is first
turned on.
•The light remains on or flickers after the 6 to 8 second
interval.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 53
2
one year old and weigh at least 20 lbs (9 kg). Two types
of child restraints can be used rearward facing: infant
carriers and convertiblechild seats.
•The infant carrier is only used rearward-facing in the
vehicle. It is recommended for children who weigh up
to about 20 lbs (9 kg). Convertiblechild seats can be
used either rearward-facing or forward-facing in the
vehicle. Convertible child seats often have a higher
weight limit in the rearward-facing direction than
infant carriers do, so they can be used rearward-facing
by children who weigh more than 20 lbs (9 kg) but are
less than one year old. Both types of child restraints are
held in the vehicle by the seatbelt or the LATCH child
restraint anchorage system. (See the LATCH - Child
Seat Anchorage System section.)
•Rearward-facing child seats must NEVERbe used in
the front seat of a vehicle with a front passenger airbag that does not have a switch to turn the airbag Off. An
airbag deployment could cause severe injury or death
to infants in this position.
Older Children and Child Restraints
•Children who weigh more than 20 lbs (9 kg) and who
are older than one year can ride forward-facing in the
vehicle. Forward-facing child seats and convertible
child seats used in the forward-facing direction are for
children who weigh 20 to 40 lbs (9 to 18 kg), and are
older than one year old. These child seats are also held
in the vehicle by the seatbelt or the LATCH child
restraint anchorage system. (See the LATCH - Child
Seat Anchorage System section.)
•The belt-positioning booster seat is for children weigh-
ing more than 40 lbs (18 kg), but who are still too small
to fit the vehicle’s seat belts properly. If the child
cannot sit with knees bent over the seat cushion while
the child’s back is against the seatback, they need a
58 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
Here are some tips for getting the most out of your child
restraint:
•Before buying any restraint system, make sure that it
has a label certifying that it meets all applicable Safety
Standards. The manufacturer recommends that you
try a child restraint in the vehicle seats where you will
use it before you buy it.
•The restraint must be appropriate for your child’s
weight and height. Check the label on the restraint for
weight and height limits.
•Carefully follow the instructions that come with the
restraint. If you install the restraint improperly, it may
not work when you need it.
•The Club Cab first and Club/Quad Cab second row
outside seating positions have cinching latch plates.
These are designed to keep the lap portion tight
around the child restraint so that it is not necessary to use a locking clip. If the seat belt has a cinching latch
plate, pulling up on the shoulder portion of the
lap/shoulder belt will tighten the belt. The cinching
latch plate will keep the belt tight, however, any seat
belt system will loosen with time, so check the belt
occasionally and pull it tight if necessary.
•Buckle the child into the restraint exactly as the
manufacturer’s instructions tell you.
•When your child restraint is not in use, secure it in the
vehicle with the seat belt or remove it from the vehicle.
Do not leave it loose in the vehicle. In a sudden stop or
collision, it could strike the occupants or seat backs
and cause serious personal injury.
LATCH - Child Seat Anchorage System (Lower
Anchors and Tether for CHildren)
Each vehicle is equipped with the child restraint anchor-
age system called LATCH, which stands for Lower
Anchors and Tethers for CHildren. The LATCH system
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE