Ford 2013 MUSTANG Owner's Manual page 143

142
2nd Row Seat/Split-Folding Rear Seat (If Equipped)
WARNING: Before returning the seat back to its original
position, make sure that cargo or any objects are not trapped
behind the seat back. After returning the seat back to its original
position, pull on the seat back to ensure that it has fully latched. An
unlatched seat may become dangerous in the event of a sudden stop or
crash.
One or both rear seat backs (coupe only) can be folded down to provide
additional cargo space.
When raising the seat back(s), make sure you hear the seat latch into
place. Pull down on the seat back to ensure that it has latched.
2013 05+ Mustang (197)
Owners Guide gf, 3rd Printing
USA (fus)
Seats
To lower the seat back(s) from
inside the vehicle, be sure the head
restraint is in the upright position,
pull the strap to release the seat
back and then fold the seat back
down.