I have a 08 Grand Cherokee when it is cool out the windows will notch up or down from any switch. The back light will not work on the switches also. Once it gets warmer everything works fine. I have replaced the drivers side window switch thinking it was the problem but still have the same problem going on. I drove it tonight and it is 50 degrees out and took about 15 min for the windows to work. Does anyone have any ideas

Thanks

 

sounds like a faulty loose ground some where in the door or a crimped wire seen it happen alot in jeeps