Chevrolet 2002 Venture Owner's Manual page 9

To lower the seat, push the lever down. Adjust the seat
and release the lever.
CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver's seat while the vehicle is
moving. The sudden movement could startle and
confuse you, or make you push a pedal when you
don't want to. Adjust the driver's seat only when
the vehicle is not moving.
To raise the seat, pull up on
the lever located on the
front right side of the seat.
Manual Front Passenger Seat
Slide the seat to where you want it and release the lever.
To make sure the seat is locked into place try to move
the seat back and forth with your body.
To move the seat, pull up
the lever located on the
front of the seat to unlock it.
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