how to replace battery in keyless remote for dodge journey
That will be found your manual or you can go to Batteries plus and they will do it for you.
On most key fobs there is a grove ( for lack of a better term) around the fob which can be opened by using a flat blade screw driver or a dime. This will give you access to the battery. Alternately go to a battery store like Batteries Plus and they will do it for you. Some jewelry stores that do watch batteries may also help you.