How do replace a battery in a Chrysler 300 key fob?

To replace the battery in a Chrysler 300 key fob, first, locate the small slot on the side of the fob and use a flathead screwdriver or a coin to gently pry it open. Remove the old battery, typically a CR2032 or CR2025, and insert the new battery with the positive (+) side facing up. Once the new battery is in place, snap the fob back together securely. Test the key fob to ensure it is functioning properly.