Door keyless code reset on 2003 ford expedition?

There's no single "reset" button for the keyless entry code on a 2003 Ford Expedition. You'll need to reprogram the system. The process generally involves using the key fob to reprogram the system. Here's a breakdown of how to do it, but it's crucial to confirm the exact steps with your Expedition's owner's manual, as procedures may slightly vary:

Method 1: Using the Keypad (If Equipped)

Some 2003 Ford Expeditions had a keypad on the driver's door. If yours does, the process usually follows these steps, but check your owner's manual to be sure:

1. Unlock the vehicle using the key in the driver's door. This is important to start the programming sequence.

2. Enter your current code (if you know it).

3. Within a specific time limit (usually 30 seconds, check your manual), enter your *new* four-digit code twice. The vehicle may give a confirmation signal (lights flashing, horn beep).

4. Test the new code.

Method 2: Dealer or Locksmith:

If you don't have a keypad or the above steps don't work:

* Ford Dealership: This is the most reliable method. They have the diagnostic tools to reprogram the system and can even replace the keypad if needed.

* Locksmith: A qualified locksmith might also be able to reprogram your keyless entry system.

Important Considerations:

* Owner's Manual: The most accurate instructions are always in your vehicle's owner's manual. Consult it before attempting any reprogramming.

* Multiple Keys/Fobs: The procedure might slightly change if you are adding or replacing multiple fobs. The manual will provide that detail.

* Battery: Ensure your key fob battery is fresh. A low battery can interfere with the programming process.

If you're unable to find instructions in your owner's manual, contacting a Ford dealership is your best bet to ensure the process is completed correctly. Attempting incorrect sequences repeatedly could lock the system further.