Using the Ignition Lock Cylinder

2010 Mercury Mariner Hybrid, AWDSECTION Using the Ignition Lock Cylinder
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The autolock feature is not available on vehicles equipped with manual transmissions.
  1. Close all the doors.
  2. Confirm that the ignition switch is in the OFF position.
  3. Turn the ignition switch from OFF to ON.
  4. NOTE: Steps 4 through 8 must be carried out within 30 seconds.
  5. Press the door lock control switch UNLOCK button 3 times.
  6. Turn the ignition switch from ON to OFF.
  7. Press the door lock control switch UNLOCK button 3 times.
  8. Turn the ignition switch from OFF to ON.
  9. Verify that the horn chirps. This indicates the system is in the enable/disable mode and is ready to accept program changes.
  10. Press the door lock control switch UNLOCK button one time to toggle the autolock/relock feature OFF.
  11. Press the door lock control switch LOCK button once to enter the command.
  12. Verify that the horn chirps 1 time. There should only be 1 chirp indicating that autolock/relock feature is disabled. If 1 chirp is heard, followed by a longer sound of the horn, the autolock/relock feature has been enabled. Return to Step 9.
  13. Turn the ignition switch to the OFF position to exit the enable/disable mode.
  14. Exit the vehicle and verify that the horn chirps once to indicate that a feature has been changed and that autolock/relock is disabled.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.