Car has trouble detecting key

[Ben_wtha]

Alright. So recently, my car has been having trouble detecting the key. Sometimes when I press the lock or unlock button, some times it works and other times it doesn't. Then when I get in the car, sometimes I can start the car without putting the key in, other times, it says "no key" and I have to put the key in the ignition for it to detect it and start the car. Also sometimes, I have to physically unlock the door with the key. And sometimes opening the trunk is a hassle. Idk what's going on. I think because my window moldings were missing and water kept getting in the doors that something happened but idk. I've even reset the ECU and the problem persists. Help?

[TitoValchev]

This sounds like you need to replace the fob battery.