Car window wont go all the way up

Usually, either the motor for the power window or the plastic clips are broken inside the door. There are many videos available on youtube that show you how to fix a broken door power window. This is one of them below.

It sounds like the windows runners inside the door have either snapped off from the retaining brackets or they have just come loose. remove the door panel and check the runners are tight against the glass as the window goes down, look for the runner brackets to check they are still connected to the door, if they arnt then they need to be replaced. If all intact, then its just a case of adjusting them to hold the glass in place at the bottom when the window is open and also as it is wound up to the top, do this slowly so you can see where the glass is slipping out of the runners. Also check that the sliders and fixings on the winder mechanism on the bottom of the window are not broken or disconnected (the bit that pushes it up and down) as this is also sometimes a problem. Replace or repair.