Jeep Grand Cherokee Owner's Manual page 77

ORC deploys the Advanced Front Air Bags, Supplemen-
tal Driver Side Knee Air Bag, SABIC air bags, SAB air
bags, and front seat belt pretensioners, as required,
depending on several factors, including the severity and
type of impact.
Advanced Front Air Bags and Supplemental Driver Side
Knee Air Bag are designed to provide additional protec-
tion by supplementing the seat belts in certain frontal
collisions depending on several factors, including the
severity and type of collision. Advanced Front Air Bags
and Supplemental Driver Side Knee Air Bag are not
expected to reduce the risk of injury in rear, side, or
rollover collisions.
The Advanced Front Air Bags and Supplemental Driver
Side Knee Air Bag will not deploy in all frontal collisions,
including some that may produce substantial vehicle
damage — for example, some pole collisions, truck under-
rides, and angle offset collisions. On the other hand,
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 75
depending on the type and location of impact, Advanced
Front Air Bags and Supplemental Driver Side Knee Air
Bag may deploy in crashes with little vehicle front-end
damage but that produce a severe initial deceleration.
The side air bags will not deploy in all side collisions.
Side air bag deployment will depend on the severity and
type of collision.
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 colli-
sions, and also are needed to help keep you in position,
away from an inflating air bag.
The ORC monitors the readiness of the electronic parts of
the air bag system whenever the ignition switch is in the
START or ON/RUN position. If the key is in the OFF
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