Rep Power: 0

So this happened about 2 days ago, I refilled to full. My usual full tank range would read about 385miles. Well when I refilled, the fuel gauge itself shows full but the trip odometer mileage range stayed the same. So right now the fuel gauge

Is this a matter of just keep driving to see if it fixes itself? Or has anyone had experience with this?
bar won’t move any lower than full but the mileage range keeps dropping. Any ideas?

 
Rep Power: 222

Take it to the dealer, you have warranty for a reason.