Mitsubishi MOTORS Shogun 2007 Owner's Manual page 76

Seat and seat belts
To remove
1. Remove the head restraints.
Refer to "Head restraints" on page 2-16.
2. Pull up the knob (A) on the side of the seatback, then tilt
the seatback forward.
2
2-30
3. Push the lever (B) forward, then tilt the seatback forward
until the seatback touches the seat cushion.