Chrysler PT Cruiser Owner's Manual page 216

214 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
2. Twist the knob on the underside of the panel and
lower the shelf leg.
Rear Shelf Leg Release Knob
3. Install the shelf leg into the liftgate latch area as
labeled on the rear scuff plate.
Rear Shelf Panel Position 5
WARNING!
Do not load objects over 100 lbs (45 kg) in position 5
(table). Failure to follow this warning could cause the
shelf to collapse resulting in personal injury.