Ford Mustang 05+ 2014 Owner's Manual page 148

Universal Garage Door Opener (If Equipped) 147
Clearing a HomeLink device
To erase programming from the three HomeLink buttons, press and hold
the two outer HomeLink buttons until the indicator light begins to flash.
The LED will begin flashing in 10 to 20 seconds, at which time both
buttons should be released. Programming has now been erased, and the
LED should blink slowly to indicate the device is in train mode when any
one of the three HomeLink buttons is pressed.
FCC and RSS-210 Industry Canada Compliance
This device complies with Part 15 of the FCC Rules and with RSS-210 of
Industry Canada. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications to your device not expressly approved by the
party responsible for compliance can void the user's authority to operate
the equipment.
2014 05+ Mustang (197)
Owners Guide gf, 3rd Printing, January 2014
USA (fus)