Mercury Mountaineer 2001 Owner's Manual page 115

Reclining the seatback can reduce the effectiveness of the seat's
safety belt in the event of a collision.
The control is located on the outboard side of the seat cushion.
Press front to raise or lower the
front portion of the seat cushion.
Press rear to raise or lower the rear
portion of the seat cushion.
Press the control to move the seat
forward, backward, up or down.
Seating and safety restraints
115