2004 XLT Ford Explorer

I'm selling my 2004 XLT Ford Explorer, I'm asking 3,000 OBO. The tires are about 2 years old. I've had it for the last 4 years and its been good to me. Runs and drives well but transmission light turns on after you go 50 MPH which has started about 2 weeks ago. I can not do payments or to trade.