Chrysler 2006 PT Cruiser Convertible Owner's Manual page 174

174 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
To return the tumbling rear seat to the latched (normal)
position use the following procedure:
1. Loosen the strap by pushing rearward on the cinching
tether strap buckle.
Releasing Cinching Tether Strap
2. Disconnect the cinching tether strap.
NOTE: The strap should be reinstalled in the side
pocket on the seat cushion before returning the seat to the
latched (normal) position.
NOTE: Prior to rotating the seat cushions rearward, be
sure that the rear seat belt buckles are secured with the
straps, so that the buckles are accessible.
Rear Seat Belt Buckle Straps