Seat Belt Pretensioners - Jeep Automobile Owner's Manual

48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
WARNING!
Position the shoulder belt height adjusters so that the
belt rests across the middle of your shoulder. Failure
to adjust the safety belt properly could reduce the
effectiveness of the seat belt and increase the risk of
injury in a collision.
As a guide, if you are shorter than average, you will
prefer a lower position, and if you are taller than average,
you'll prefer a higher position. When you release the
anchorage, try to move it up or down to make sure that
it is locked in position.

Seat Belt Pretensioners

The driver and front passenger seat belts are equipped
with a pretensioning device that is designed to remove
any slack from the seat belt systems in the event of a
collision. This device improves the performance of the
seat belt by assuring that the belt is tight around the
occupant early in a collision. Pretensioners work for all
size occupants, including those in child restraints.
NOTE: These devices are not a substitute for proper seat
belt placement by the occupant. The seat belt must still be
worn snugly and positioned properly.
The pretensioners are triggered by the Occupant Re-
straint Control (ORC) Module. Like the front airbags, the
pretensioners are a single use item. After a collision that
is severe enough to deploy the airbags and pretensioners,
they must be replaced.