Ford 2013 Flex Owner's Manual page 173

172
Note: The seat back must be folded flat in order to release the floor
latches. Make sure that there are no objects on the seat cushion that
may restrict the seat back from folding flat.
2013 Flex (471)
Owners Guide gf, 4th Printing, December 2012
USA (fus)
Seats
The seat back will fold flat.
2. Lift the handle all the way up
until the seat releases from the
floor. Rotate the seat forward,
grabbing the bottom of the seat
back as indicated, to allow access to
the third row seat.
3. To return the seat back to the
floor from tumbled position, rotate
the seat down until you hear it
latching to the floor.