How to Program a 2010 Mercury Mountaineer Ignition Chip Key Transponder

Step by Step How to Programming Instructions:

1. Ensure all doors are closed.
2. Insert your Master Key (Black) into the ignition.
3. Turn the ignition from LOCK to ON five times within 15 seconds. On the fifth time, leave the key in the ON position.
4. Open and close the driver’s door six times within 20 seconds.
5. Turn the Master Key back to LOCK and remove it.
6. Insert the new blank key and turn it to the ON position.
7. Leave it in the ON position for a full minute to allow the key to register with the vehicle.
8. After 60 seconds or more, remove the key.
9. Open and then close the driver’s door to finalize the procedure.