Jeep Grand Cherokee SRT8 2012 Owner's Manual page 90

88 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
The rear seat lower anchorages are round bars, located at
the rear of the seat cushion where it meets the seatback,
and are just visible when you lean into the rear seat to
install the child restraint. You will easily feel them if you
run your finger along the intersection of the seatback and
seat cushion surfaces.
Latch Anchorages
In addition, there are top tether strap anchorages behind
each rear seating position located on the back of the seat.
To access the top tether strap anchorages behind the rear
seat, pull the carpeted floor panel away from the seat
back, this will expose the top tether strap anchorages.
Pulling Down The Carpet Floor Panel To Access Top
Tether Strap