FORD 2013 Expedition v.1 - Manual (Page 68)

If the liftgate reverses and starts to close after a open request, a fast
continuous chime indicates excessive load on the liftgate or a possible
strut failure. If any excessive load is removed and you still have a faster
chime, have the system serviced immediately by your authorized dealer.
Do not attempt to manually force the liftgate to travel faster than the
power system will permit. This will activate the obstacle detection
feature.
To open or close from the instrument panel:
Press the instrument panel button.
To open or close with the remote control:
Press the remote control button within three seconds.
To open with the outside liftgate
button (manual actuation):
1. Unlock the liftgate with the
remote entry transmitter or power
door unlock control.
2. Press the control button located
on the inside of the liftgate handle.
Note: Let the power system to
open the liftgate after releasing the
control button. Continued upward
force after unlatching may activate the obstacle detection feature and
stop the power operation.
Note: If weight is added to the liftgate (bike rack, snow, etc.) it may
start a power close event immediately after a power open. If this
happens, a unique continuous chime will sound.
68 Locks
2013 Expedition (exd)
Owners Guide gf, 1st Printing
USA (fus)