Replacing the battery in your Jeep's key fob is a simple process. This video is a general guide on how to replace battery in in a Jeep's Key fob Gather Materials: Before you start, make sure you have a replacement battery for your Jeep's key fob. Most Jeep key fobs use a CR2032 battery, but it's a good idea to double-check the battery type. Locate the Battery Compartment: Look for a small slot or indentation on the key fob. This is usually located on the back or side of the fob. You may need to