2009 Mercury Mariner Owner's Manual - Page 93

Locks and Security To replace the battery: 1. Twist a thin coin in the slot of the IKT near the key ring in order to remove the battery cover. 2. Do not wipe off any grease on the battery terminals on the back surface of the circuit board. 3. Remove the old battery. Note: Please refer to local regulations when disposing of transmitter batteries. 4. Insert the new battery. Refer to the instructions inside the IKT for the correct orientation of the battery. Press the battery down to ensure that the battery is fully seated in the battery housing cavity. 5. Snap the battery cover back onto the key. Note: Replacement of the battery will not cause the IKT to become deprogrammed from your vehicle. The IKT should operate normally after battery replacement. Replacing lost Integrated Keyhead Transmitters (IKTs) If you would like to have your Integrated Keyhead Transmitters reprogrammed because you lost one, or would like to buy additional IKTs, you can either reprogram them yourself, or take all IKTs to your authorized dealer for reprogramming. How to reprogram your Integrated Keyhead Transmitters (IKTs) To program a new Integrated Keyhead Transmitter yourself, refer to Programming spare keys in the SecuriLock™ passive anti-theft section of this chapter. Note: At least two IKTs are required to perform this procedure yourself. Illuminated entry The interior lamps and puddle lamps (if equipped) illuminate when the Integrated Keyhead Transmitter or the keyless entry system keypad is used to unlock the door(s). 93 2009 Mariner (mrn) Owners Guide, 2nd Printing USA (fus)