Window regulator is a mechanism that controls the movement of a window in a vehicle. It is typically powered by an electric motor and is operated by a switch on the dashboard. When the switch is activated, the motor turns a gear that raises or lowers the window.
Window regulators can sometimes become misaligned or damaged, which can cause the window to become stuck or to move erratically. In some cases, it may be necessary to reset the window regulator in order to fix the problem.