Pontiac 2002 Aztek Owner's Manual page 143

Removing the Floor Track Assembly
After the tray is removed, the floor track assembly also
needs to be removed. Items should not be put onto the
floor track assembly.
1. Feed the tethered ring through the rear lower
sidewall loop on each side of the vehicle.
2. Unlock the slide locks from the two rear floor
retainers by pushing the button down and pressing
them inward.
3. Disengage the front forks from the retainers by
lifting and pulling the assembly toward you.
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Replacing the Floor Track Assembly
Before beginning this procedure make sure that nothing
is in the rear of the vehicle.
1. Slide the floor track assembly in while aligning the
front forks, located on the bottom front of the track
assembly, so that the forks slide under the two front
floor retainers.