Subaru Impreza 2018 Quick Manual page 5

Seating
Power Driver's Seat
1. Forward/Backward, Angle and Height
Move the switch toward the front or rear to move the seat forward or backward.
Pull the switch up or push down on the front of the switch to adjust the angle
of the seat cushion. Pulling the switch straight up or pushing the switch straight
down will adjust the height of the entire seat cushion.
2. Seatback
Move the switch in the corresponding direction to adjust the angle of
the seatback.
1
(if equipped)
2
3