Just call Parts, the battery costs $6.00 you can replace it yourself.
To change the battery in a Chrysler 300 key fob, start by using a small flathead screwdriver to gently pry open the fob along the seam. Once opened, remove the old battery, noting its orientation, and replace it with a new CR2032 battery, ensuring the positive side is facing up. Snap the fob back together securely, and test the key fob to ensure it works properly.
To change key fob battery in 2011 Chrysler 300, simply release the cover by using a screwdriver to take off the battery cover. Then, replace the old battery with a new CR2032 3V/225mAh Lithium coin cell battery. Slide the cover back on and screw the little screw in place.
The fob may be defective or it may have lost programming.
The Chrysler 300 key FOB must initially be programmed at the Chrysler dealership. You can use the Chrysler dealership FOB code to change the initial code to your personal code.
To replace the battery in a Chrysler key, first locate the small slot or notch on the key fob. Use a flathead screwdriver or a similar tool to gently pry open the fob. Once open, remove the old battery, noting its orientation, and replace it with a new battery of the same type, typically a CR2032. Finally, snap the fob back together until it clicks securely.
Possible weak remote battery or failed remote.
nothing works and I replaced the battery. to the fob
To change the battery in your 2015 Chrysler key fob, first, use a small flathead screwdriver to gently pry open the two halves of the fob. Once open, remove the old battery, typically a CR2032, and replace it with a new one, ensuring the positive side faces up. Finally, snap the fob halves back together until they click securely. Test the fob to ensure it’s working properly.
put new battery in
Remove the valet key from the fob and behind it is a small Phillips screw. After that the fob will split and the battery is visible.
Yes you can just change the battery