Jeep 2012 Grand Cherokee - Owner Manual - Manual (Page 272)

Cargo Storage Bins
There are four removable storage bins located in the rear
cargo area. There are two storage bins located on either
side of the cargo area.
Two additional storage bins are located under the load
floor. To access the lower storage bins, raise the load floor
and attach the tether hook (attached to the bottom of the
load floor) to the liftgate opening.
Rear Storage Bins Tether Strap
270 UNDERSTANDING THE FEATURES OF YOUR VEHICLE