How The Active Head Restraints (AHR) Work
The Occupant Restraint Controller (ORC) determines whether the severity, or type of rear impact will require the Active Head Restraints (AHR) to deploy. If a rear impact requires deployment, both the driver and front passenger seat AHRs will be deployed.
When AHRs deploy during a rear impact, the front half of the head restraint extends forward to minimize the gap between the back of the occupant’s head and the AHR.
This system is designed to help prevent or reduce the extent of injuries to the driver and front passenger in certain types of rear impacts.
However if during a front impact, a secondary rear impact occurs, the AHR may deploy based on the severity and type of the impact.

Active Head Restraint (AHR) Components
1 — Head Restraint Front Half (Soft Foam and Trim)
2 — Seatback
3 — Head Restraint Back Half (Decorative Plastic Rear Cover)
4 — Head Restraint Guide Tubes
Test yourself
A quick Jeep Grand Cherokee quiz: every answer comes with an explanation and a link to the manual page.