Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See ЃgReplace Battery in Remote KeyЃh under Key and Lock Messages on page 5.29.

The battery is not rechargeable. To replace the battery:

1. Push the button on the transmitter to extend the key.
2. Remove the battery cover by prying with a finger.
3. Remove the battery by pushing on the battery and sliding it toward the key blade.
4. Insert the new battery, positive side facing up. Push the battery down until it is held in place. Replace with a CR2032 or equivalent battery.
5. Snap the battery cover back on to the transmitter.