Airbag Deployment Sensors and Controls
Occupant Restraint Controller (ORC)
TheORC is part of a Federally regulated safety system
required for this vehicle.
The ORC determines if deployment of the front airbags in
a frontal collision is required. Based on impact sensor
signals a central electronic ORC deploys the Advanced
Front Airbags, as required, depending on severity and
type of impact.
Advanced Front Airbags are designed to provide addi-
tional protection by supplementing the seat belts in
certain frontal collisions depending on the severity and
type of collision. Advanced Front Airbags are not ex-
pected to reduce the risk of injury in rear, side or rollover
collisions.
The Advanced Front Airbags will not deploy in all frontal
collisions, including some that may produce substantial vehicle damage — for example, some pole collisions,
truck underrides, and angle offset collisions. On the other
hand, depending on the type and location of impact,
Advanced Front Airbags may deploy in crashes with
little vehicle front-end damage but that produce a severe
initial deceleration.
Because airbag sensors measure vehicle deceleration over
time, vehicle speed and damage by themselves are not
good indicators of whether or not an airbag should have
deployed.
Seat belts are necessary for your protection in all colli-
sions, and also are needed to help keep you in position,
away from an inflating airbag.
The ORC monitors the readiness of the electronic parts of
the system whenever the ignition switch is in the START
or ON position. If the key is in the LOCK position, in the
ACC position, or not in the ignition, the airbags are not
on and will not inflate.
54 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
The ORC contains a backup power supply system that
may deploy the airbags even if the battery loses power or
it becomes disconnected prior to deployment.Also, the ORC turns on the Airbag Warning
Light in the instrument panel for approxi-
mately 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. 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 startup.
It also includes diagnostics that will illuminate the instru-
ment cluster Airbag Warning Light if a malfunction is
noted. The diagnostics also record the nature of the
malfunction.WARNING!
Ignoring the Airbag Warning Light in your instru-
ment 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.
Driver and Passenger Airbag Inflator Units
The Driver and Passenger Airbag/Inflator Units are
located in the center of the steering wheel and the right
side of the instrument panel (if equipped). When the
ORC detects a collision requiring the airbags, it signals
the inflator units. A large quantity of non-toxic gas is
generated to inflate the Advanced Front Airbags. Differ-
ent airbag inflation rates are possible, based on the
collision type and severity. The steering wheel hub trim
cover and the upper right side of the instrument panel
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 55
separate and fold out of the way as the bags inflate to
their full size. The bags fully inflate in about 50 to 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 front airbag gas is vented through the vent
holes in the sides of the airbag. The passenger front
airbag gas is vented through the vent holes in the sides of
the airbag. In this way, the airbags do not interfere with
your control of the vehicle.
Enhanced Accident Response System
In the event of an impact causing airbag deployment, if
the communication network remains intact, and the
power remains intact, depending on the nature of the
event the ORC will determine whether to have the
Enhanced Accident Response System perform the follow-
ing functions:
•Cut off fuel to the engine.
•Flash hazard lights as long as the battery has power or
until the ignition key is turned off.
•Turn on the interior lights, which remain on as long as
the battery has power or until the ignition key is
removed.
•Unlock the doors automatically.
If a Deployment Occurs
The airbags are designed to deflate immediately after
deployment.
NOTE:Front airbags will not deploy in all collisions.
This does not mean something is wrong with the airbag
system.
56 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE