i am 78 yrs old and im not sure i understand these answers. my passenger side window won't come back up all others work fine.
The window regulator is probably broken or the power window motor has failed. Your mechanic can remove the inner door panel to inspect and replace as necessary.
The window regulator is the part that the window glass is connected to. There's a small electric motor attached by a gear to the window regulator. When you press the window button electricity is sent to the motor. The motor runs and the window glass goes up or down. HTH. -Jim
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