In 2002, Ford unveiled the redesigned Explorer after several years of setbacks, thanks to the Firestone debacle in the early 2000s. The 2002 Explorer came standard with a 210-horsepower, 4.0-liter V-6 engine and a handful of relatively high-end features. One of these premium features was keyless entry, which featured a keypad that allowed entry to the vehicle via a five-digit code. Setting your own code is a great way to prevent locking yourself out of the vehicle, but you need the factory-set master code to perform this task.
Gathering the Required Information
Before you can attempt to set your own code on your Explorer’s keypad, you need to first find out what the factory-set code is. If you do not know this code, you can find it printed on the owner’s wallet card in the glove box or you can head to your nearest Ford dealer with your registration to obtain the code.
Programming Your Own Code
With all of the information in hand, you're ready to go. Start by entering the factory code. Once you enter this code, the keypad will light up, then press and release the “1/2” button within 5 seconds of completing the factory-set code entry. Enter the five-digit code you would like to use to open the doors, then press the “7/8” and “9/0” buttons at the same time to exit the programming mode.