the car drops out of overdrive when OD is on shifts fine gears123 with OD off

What is your question?

the car is a 2000 model GLS Mint conditon has 87000 miles and works great for a around town car but drops out of overdrive when its on push button to turn off and it works great just cant go over 53 miles an hour or it over revs up too 3500RPM no check engine lights no other issues but overdrive