Buick 2006 Rendezvous Owner's Manual page 25

Push and pull on the seatback to make sure that it is
locked into place.
To fold the seatback
down, pull up on the lever
located on the back of
the seat. Push down
on the seatback until it
is locked into place.
To raise the seatback, do one of the following:
•
From the rear of the vehicle, pull up on the lever to
release the seatback. Then pull the strap, located
on the right side of the seat, to pull the seatback up.
The seatback has a pocket to stow the strap on
the side of the seatback when not in use, or
•
from the passenger's side door, pull up on the lever
to release the seatback. Then push up on the
seatback to raise the seat.
Push and pull on the seatback to make sure that it is
locked into the upright position.
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