Pontiac 2001 Firebird Owner's Manual page 123

Removing the Cargo Cover
1. Close the cover. If the cargo cover is not closed and
resting on the trim panel, it cannot be removed.
2. Pull the cover toward you to unsnap it. Then slide
the cargo cover along the groove in the trim panel.
Reverse the steps to install the cover.
CAUTION:
An improperly stored cargo cover could be
thrown about the vehicle during a collision
or sudden maneuver. You or others could be
injured. If you remove the cover, always store
it outside the vehicle. When you put it back,
always be sure that it is securely reattached.
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