My phone will not read to the car I have to put it in the slot I've changed the battery in the car and the fob the doors will not unlock

What is your question?

I have a 2017 Chevy Corvette stingray I changed the battery in the car then I changed the battery in the fob now my doors will not unlock my car will start my windows will go up and down I have held the unlock and lock button at the same time but it wants me to turn the car on and off but all I have is a fob because it's electronic it keeps saying it can't read the fob not connected to the car what should I do

What makes this problem better or worse?

How to make it better it just won't read the whole and the farm always worked fine it all happened when I change the battery

How long has your 2017 Chevrolet Corvette had this problem?

The last two or three weeks