2009 Ford Mustang Owner Guide 1st Printing - Page 89

Locks and Security Replacing the battery The remote entry transmitter uses one coin type three-volt lithium battery CR2032 or equivalent. To replace the battery: 1. Twist a thin coin between the two halves of the remote entry transmitter near the key ring. DO NOT TAKE THE RUBBER COVER AND CIRCUIT BOARD OFF THE FRONT HOUSING OF THE REMOTE ENTRY TRANSMITTER. 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 diagram inside the remote entry transmitter 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 two halves back together. Note: Replacement of the battery will not cause the remote transmitter to become deprogrammed from your vehicle. The remote transmitter should operate normally after battery replacement. Replacing lost remote entry transmitters If you would like to have your remote entry transmitter reprogrammed because you lost one, or would like to buy additional remote entry transmitters, you can either reprogram them yourself, or take all remote entry transmitters to your authorized dealer for reprogramming. 89 2009 05+ Mustang (197) Owners Guide USA (fus)