FORD 2015 Expedition - Manual (Page 35)

CHILD SAFETY LOCKS
When these locks are set, the rear doors cannot be opened from the
inside.
The childproof locks are located on the rear edge of
each rear door and must be set separately for each
door.
Move the lock control up to engage the childproof
lock.
Move it down to disengage the lock.
34 Child Safety
2015 Expedition (exd)
Owners Guide gf, 1st Printing, July 2014
USA (fus)