Transmitter, Integrated Key Fob: Specifications: Battery
WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
The transmitter has one battery, which can be removed and replaced without special tools. Remove and replace the battery. When replacing the battery, match the + sign on the battery to the + sign on the inside of the battery clip, located on the back cover. Avoid touching the new battery with your fingers. Skin oils may cause battery deterioration. If you touch a battery, clean it with rubbing alcohol. The battery is available at local retail stores. The recommended replacement battery is one CR2032 battery.
CAUTION:
Do not handle the batteries any more than necessary. Hands must be clean and dry.