2013 Jeep Grand Cherokee Owner's Manual - Page 78

76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE The Advanced Front Air Bags and Supplemental Driver and Front Passenger Knee Air Bags will not deploy in all frontal collisions, including some that may produce substantial vehicle damage - for example, some pole collisions, truck underrides, and angle offset collisions. On the other hand, depending on the type and location of impact, Advanced Front Air Bags may deploy in crashes with little vehicle front-end damage but that produce a severe initial deceleration. 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. 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 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 The side air bags will not deploy in all side collisions. may deploy the air bags even if the battery loses power or Side air bag deployment will depend on the severity and it becomes disconnected prior to deployment. type of collision. Also, the ORC turns on the Air Bag Warning Because air bag sensors measure vehicle deceleration Light in the instrument panel for approxiover time, vehicle speed and damage by themselves are mately four to eight seconds for a self-check not good indicators of whether or not an air bag should when the ignition is first turned on. After the have deployed. self-check, the Air Bag Warning Light will turn off. If the ORC detects a malfunction in any part of the system, it