Jeep 2012 Liberty - Manual (Page 68)

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 crashes,
and also are needed to help keep you in position, away
from an inflating air bag.
The ORC also monitors the readiness of the electronic
parts of the air bag system whenever the ignition switch
is in the START or ON/RUN positions. If the key is in the
LOCK position, in the ACC position, or not in the
ignition, the air bag system is not on and the air bags will
not inflate.
The ORC contains a backup power supply system that
may deploy the air bags even if the battery loses power or
it becomes disconnected prior to deployment.
Also, the ORC turns on the “Air Bag Warning
Light” for four to eight seconds for a self-check
when the ignition is first turned to ON/RUN.
After the self-check, the “Air Bag Warning
Light” will turn off. If the ORC detects a malfunction in
any part of the system, it turns on the “Air Bag 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 Air Bag Warning Light if a malfunction is
noted that could affect the air bag system. The diagnos-
tics also record the nature of the malfunction.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE