How do you get your Mustang convertible top to go back up when it is stuck down?
Check to see if the top motor is running when you press the top up switch. Car has to be in park with emergency brake engaged. If motor runs but top will not move or binds then one or both of the lift cylinders are bad. Usually there will be hydraulic fluid leaking from the cylinders if one or both will not hold pressure. Replace cylinders if bad. The top could probably be manually closed if the lift cylinder arms are detached from the top frame. If motor does not run when the switch is pressed then check your fuses, the switch and the connector at the top motor to see if it is getting power.