Cadillac 2001 Catera Owner's Manual page 21

For more cargo space or to fold down the front
passenger's seat, you may need to remove the head
restraint. Press both release buttons at the top of the
seatback and slide the head restraint out of the height
adjust tubes.
The head restraint should be stored securely on the
driver's side of the trunk as shown.
Replace the head restraint when you have finished
carrying cargo or when the passenger's seat is returned
to its normal upright position.
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