- Remove the screw on the keyfob using a small Philips screwdriver.
- Insert a flat blade to open the key fob housing.
- Remove the battery. Use a pick tool to pop out the battery from the key fob.
- Put the new battery on the key fob by pushing it in.
Make sure that the battery is sealed.
Close the key fob and put the screw back into the key fob.
Test the battery by pushing the lock and unlock button on the key fob.