Chrysler PT Cruiser Owner's Manual page 181

Cinching Tether Strap
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.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 179
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.
3