Chevrolet UPLANDER 2007 Owner's Manual page 20

To reinstall the bucket seats, do the following:
1. With the seat folded, squeeze the angled bar
beneath the seat toward the straight crossbar,
while placing the front hooks of the seat
into the front two floor pins.
If the front hooks are not attaching correctly,
check that the seat is in the full rear position.
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2. Make sure the seat
is angled so that the
front seat hooks
clear the floor pins.
If the front hooks
are not attached
correctly, the seat's
rear hooks will
not attach to the rear
set of floor pins.
3. Firmly push the rear seat hooks into the rear
floor pins by pushing down the rear of
the seat.