Mercury 2005 Mountaineer Owner's Manual page 114

Note: If the seat back is "locked out" and cannot return to the upright
position, repeat Step 2 and unlatch the seat from the floor. Repeat
latching to the floor with a moderate amount of force and momentum.
Your seats are equipped with an Interlock Safety Mechanism which will
not allow the seats to return to a usable position if the seat is not fully
latched to the floor!
To exit the 3rd row seat, pull the
red access control lever up releasing
the seat from the floor and rotate
the seat up towards the front seat.
Always latch the vehicle seat to the floor, whether the seat is
occupied or empty. If not latched, the seat may cause injury
during a sudden stop.
2005 Mountaineer (mnt)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
113