Pile telecommande use

Friends give the above warning in 307. Does anyone know what this means?

Remote battery use - The vehicle is alerting it to run out of battery of your key. Also, if you translate the language from the buttons on the left and right of the screen, you will understand it better. When replacing the battery, be careful not to drop the immobilizer or throw it away because it seems unimportant. :)

Thank you bro .. thank you.

What it means.