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Home >> Lincoln >> 2004 >> Navigator 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Handles, Locks, Latches And Entry Systems >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Principles of Operation >> Programming/Erasing Personal Code

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).
  2. Press 1/2 within five seconds of Step 1.
  3. 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:

  4. Enter factory set five-digit code.
  5. Press 1/2 within five seconds of Step 1.
  6. 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.