2012 Jeep Grand Cherokee Owner Manual SRT - Page 62

60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE NOTE: These devices are not a substitute for proper seat How The Active Head Restraints (AHR) Work belt placement by the occupant. The seat belt still must be The Occupant Restraint Controller (ORC) determines whether the severity, or type of rear impact will require worn snugly and positioned properly. the Active Head Restraints (AHR) to deploy. If a rear The pretensioners are triggered by the Occupant Reimpact requires deployment, both the driver and front straint Controller (ORC). Like the air bags, the pretenpassenger seat AHRs will be deployed. sioners are single use items. A deployed pretensioner or When AHRs deploy during a rear impact, the front half a deployed air bag must be replaced immediately. of the head restraint extends forward to minimize the gap Supplemental Active Head Restraints (AHR) between the back of the occupant's head and the AHR. These head restraints are passive, deployable compoThis system is designed to help prevent or reduce the nents, and vehicles with this equipment cannot be readily extent of injuries to the driver and front passenger in identified by any markings, only through visual inspeccertain types of rear impacts. tion of the head restraint. The head restraint will be split in two halves, with the front half being soft foam and NOTE: The Active Head Restraints (AHR) may or may trim, the back half being decorative plastic. not deploy in the event of a front or side impact. However if during a front impact, a secondary rear impact occurs, the AHR may deploy based on several factors, including the severity and type of the impact.