How do you put the cr2032 battery into the key fob?

To insert a CR2032 battery into a key fob, first, open the key fob by gently prying it apart using a small flat tool or coin. Once opened, locate the battery compartment, remove the old battery if present, and place the new CR2032 battery in the correct orientation, ensuring the positive (+) side is facing up. Finally, snap the key fob back together securely.