To add a new Master Key into vehicle’s computer:
  1. Have all windows and doors shut.
  2. Stand outside vehicle.
  3. From outside lock the door with your master key.
  4. From outside unlock the door with your master key.
  5. Enter vehicle and close door.
  6. Start engine then turn engine off and remove master key.
  7. Insert master key in ignition but do not turn.
  8. Within 35 seconds, moving quickly at an even pace:
    1. Turn the key from OFF to ON (as far as it goes without cranking engine) 5 times ending in ON.
    2. Open and close driver’s door 6 times, very fast.
    3. Remove master key.
  9. Quickly insert new key in ignition and do not turn.
  10. Wait up to 120 seconds for security light to stop flashing.
  11. Remove new key from ignition.
  12. Open and close the driver’s door 1 time.
  13. Wait 15 seconds to allow computer to reset.
  14. Test key by trying to start vehicle.
If the above procedure doesn’t work then in step 8a end in OFF.