How to reset factory code on keyless entry ford five hundred

Go to your owners manual It tells you how to do it

You can't reset it. They all come with a factory code (RKE Code). If you have the factory code you can add a second and third code of your own. If you have lost the factory code you can retrieve it by going to the Ford dealer. Secondly you can do it this way:
Location for key pad entery code; 2006 Ford 500. Need to pull panel off below steering wheel (I used a 9/32 socket) Then look for 3 10mm nuts, 2 @ top 1 on the bottom. if you are having trouble locating this box, its part of your fuse box (says pull on the cover) and your fuses are behind the cover. Once you have removed the 3 10mm nuts, look on the back of the box (CAREFUL NOT TO PULL ON WIRES TO MUCH) and you will see the 5digit code! Watch this you tube video.
https://www.youtube.com/watch?v=F8F_XFmNF00
I hope this helps.

Google the programming instruction for the key pad and reprogram the system to the code of your choosing

you need locksmith or dealership you will need vechicle VIN NUMBER.located on a plate on top of dash visible through windshield.

Tells you in the owners manual.

Don't have one? (Helm.com) Buy one.

door pad keyless codes?

in owner manual, enter permanent code and then press "1" and enter personal code, then press "1" again. Then both codes will work.

If you don't have manual, go to Motorcraft.com and click on technical resources and click on your year owner manual.

---------------------------------------------
Each vehicle equipped with a keyless entry keypad is programmed with a five-digit entry code. This code is provided to the customer through a wallet card in the Owner Literature package. In addition, this code is available through a diagnostic tool and is also printed on the vehicle security module label. When entering codes each digit must be entered within five seconds of the previous button press.
Programming/Erasing Personal Code
A unique personal five-digit code can be programmed by following these steps:

1. Enter the factory set five-digit code (the keypad will illuminate when pressed).

1. Press 1/2 within five seconds of Step 1.

1. Enter the unique five-digit code.

The personal code does not substitute for the permanent factory set code. Either code can be used to access the vehicle. In addition, if a second personal code is programmed, it will simply overwrite the previous personal code. To erase a personal code, carry out the following procedure:

1. Enter factory set five-digit code.

1. Press 1/2 within five seconds of Step 1.

1. Press 7/8 and 9/0 at the same time within five seconds of Step 2.

The system will now only respond to the factory set code.
Anti-Scan Feature
To provide added security, the keyless entry pad is disabled for one minute after 35 button presses without a valid entry code being entered. The keypad will flash during this one-minute mode with all functionality disabled except for 7/8 and 9/0 still being allowed to lock the vehicle.
Anti-Scan will be turned off after any of the following events:

• one minute of keypad inactivity
• the keyless entry remote transmitter UNLOCK button is pressed
• the ignition is turned to the ON position.

Unlocking the Doors with the Keyless Entry Keypad System
To unlock the driver door, enter either the factory set code or the personal code (each digit must be pressed within five seconds of the prior digit). The interior lamps will illuminate.
To unlock all doors, enter either the factory set code or the personal code (driver door unlocks) and press the 3/4 control within five seconds.
Locking the Doors with the Keyless Entry Keypad System
It is not necessary to enter the factory set or personal code prior to locking all doors. To lock all doors, press the 7/8 and 9/0 controls at the same time.
Inspection and Verification

1. Verify the customer concern by operating the system.

1. Visually inspect for obvious signs of mechanical or electrical damage.

this is from the Ford owners manual.
Programming a personal entry code
To create your own personal entry code:
1. Enter the factory set code.
2. Within five seconds press the 1 • 2 on the keypad.
3. Enter your personal 5-digit code. Each number must be entered
within five seconds of each other.
4. The doors will again lock then unlock to confirm that your personal
keycode has been programmed to the module.
Tips:
• Do not set a code that uses five of the same number.
• Do not use five numbers in sequential order.
• The factory set code will work even if you have set your own personal
code.
• If you set a second personal code it will erase your first personal code.

THE CODE IS A PAPER TAG ON THE KEYLESS ENTRY MODULE, THIS MODULE IS LOCATED BEHIND THE LARGE TRIM PANEL ON THE DRIVER SIDE OF THE CARGO AREA. THERE IS NO GENERIC CODE. MY BACKGROUND IS: 10 YEAR FORD FACTORY CERTIFIED ELECTRONICS MASTER TECHNICIAN.

there is a factory code on your car somewhere i will see if i can look up the location

I believe dealer has to re-program the new code.