Jeep 2009 Grand Cherokee SRT - Owner Manual - Manual (Page 46)

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). Like the front airbags, the preten-
sioners are a single use item. After a collision that is
severe enough to deploy the airbags and pretensioners,
they must be replaced.
Enhanced Seat Belt Use Reminder System
(BeltAlert
ா
)
If the driver’s seat belt has not been buckled within
60 seconds of starting the vehicle and if the vehicle speed
is greater than 5 mph (8 km/h), the Enhanced Warning
System (BeltAlert
௡) will alert the driver to buckle the seat
belt. The driver should also instruct all other occupants to
buckle their seat belts. Once the warning is triggered,
BeltAlert
௡ will continue to chime and flash the Seat Belt
Warning Light for 96 seconds or until the driver’s seat
belt is buckled. BeltAlert
௡ will be reactivated if the
driver’s seat belt is unbuckled for more than 10 seconds
and the vehicle speed is greater than 5 mph (8 km/h).
44 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE