door does not open fully

The left rear door will not open, although the handle moves and the window goes down when I move it. The door feels like it's stuck at the bottom; it moves slightly. Has anyone seen this before and have an easy solution, or do we need to make a service call?

Anyone have any advice on why my passenger front door only opens to about 1/2 inch now? From outside (pressing door handle) or using the display, door only opens a crack. Can then pull it open (but its stiff). Didn't start this way - it worked normally a few weeks ago. Made an appointment...