Ford Mercury Villager 1997 Owner's Manual page 126

Adjusting the Front Seats Manually
If you have manually adjustable front seats, you can move your
seat to a new position by lifting up on the seat adjustment
lever and sliding the seat to the position of your choice. The lever
is underneath the front of your seat.
Seat adjustment lever location
Never adjust the driver's seat or seatback when the
vehicle is moving.
Cargo should always be secured to prevent it from
shifting and causing damage to the vehicle or harm to
passengers.
122
WARNING
WARNING