FORD 2013 Explorer v.3 - Manual (Page 69)

The ignition must be turned on and then back off or allow one hour to
pass before using remote start again if additional remote starts are
desired.
Turning the Vehicle Off After Remote Starting
Press the button once. The parking lamps will turn off.
You may have to be closer to the vehicle than when starting due to
ground reflection and the added noise of the running vehicle .
You can disable or enable the remote start system through the
information display. Refer to the Information Display chapter.
REPLACING A LOST KEY OR REMOTE CONTROL
Replacement or additional keys or remote controls can be purchased
from your authorized dealer. Your dealer can program the transmitters to
your vehicle or you may be able to program them yourself. See the
Security chapter for information on programming your transmitters.
68 Keys and Remote Control
2013 Explorer (exp)
Owners Guide gf, 3rd Printing
USA (fus)