Chrysler Pacifica 2021 Owner's Manual page 258

256 SAFETY
On the other hand, depending on the type and
location of impact, front air bags may deploy in
crashes with little vehicle front-end damage but
that produce a severe initial deceleration.
Because air bag sensors measure vehicle
deceleration over time, vehicle speed and damage
by themselves are not good indicators of whether
or not an air bag should have deployed.
Seat belts are necessary for your protection in all
collisions, and also are needed to help keep you in
position, away from an inflating air bag.
When the Occupant Restraint Controller (ORC)
detects a collision requiring the front air bags, it
signals the inflator units. A large quantity of
non-toxic gas is generated to inflate the front air
bags.
The steering wheel hub trim cover and the upper
passenger side of the instrument panel separate
and fold out of the way as the air bags inflate to
their full size. The front air bags fully inflate in less
time than it takes to blink your eyes. The front air
bags then quickly deflate while helping to restrain
the driver and front passenger.
Occupant Classification System (OCS) —
Front Passenger Seat
The Occupant Classification System (OCS) is part
of a Federally regulated safety system for this
vehicle. It is designed to provide Passenger
Advanced Front Air Bag output appropriate to the
occupant's seated weight, as determined by the
OCS.
The Occupant Classification System (OCS) consists
of the following:
Occupant Restraint Controller (ORC)

Occupant Classification Module (OCM) and

Sensor located in the front passenger seat
Air Bag Warning Light

Occupant Classification Module (OCM) And Sensor
The Occupant Classification Module (OCM) is
located underneath the front passenger seat. The
Sensor is located beneath the passenger seat
cushion foam. Any weight on the seat will be
sensed by the Sensor. The OCM uses input from
the Sensor to determine the front passenger's
most probable classification. The OCM
communicates this information to the ORC.
The ORC may reduce the inflation rate of the
Passenger Advanced Front Air Bag deployment
based on occupant classification. In order for the
OCS to operate as designed, it is important for the
front passenger to be seated properly and properly
wearing the seat belt.
The OCS will NOT prevent deployment of the
Passenger Advanced Front Air Bag. The OCS may
reduce the inflation rate of the Passenger
Advanced Front Air Bag if the OCS estimates that:
The front passenger seat is unoccupied or has

very light objects on it; or
The front passenger seat is occupied by a small

passenger, including a child; or
The front passenger seat is occupied by a

rear-facing child restraint; or
The front passenger is not properly seated or his

or her weight is taken off of the seat for a period
of time.