1. Press the small button on the side of the key fob to release the key.
2. Slide the key out of the key fob.
3. Use a small screwdriver or pry tool to pry open the back cover of the key fob.
4. Remove the old battery from the key fob.
5. Insert a new CR2016 battery into the key fob, with the positive side facing up.
6. Replace the back cover of the key fob and slide the key back in.
7. Test the key fob to make sure it works.
