Chevrolet 2002 Astro Owner's Manual page 15

To adjust your seatback, pull up on the lever located on
the outboard side of the seat cushion.
1-8
For details about headrests, see "Head Restraints" in
this section.
To raise or lower the
center console, press the
button located between the
beverage holders. Sit in the
center seating position only
when the console is in an
upright and locked position.