2006 Chrys T&C. One Key Fob Stopped Working

I have seen FOBs that are picky about batteries. Perhaps try another brand of battery or stop by a O'reilly or similar parts store and see if the FOB is putting out a signal. The FOB could be defective also.

Thanks for responses. Fob works to lock/arm/unlock disarm alarm, all lights cycle on/off. Just would not crank. After using valet key cranked right up and runs well. Then with fob key would start then die; if left in would crank and crank but no start. Remove fob and reinsert would then start but die/turn off. Valet key works. Found that 2nd fob works well. Will try different battery in this fob. Appreciate suggestions.