The main window control switch button is used to control the opening and closing of the main driver window of the car.
The buttons are usually located on the door panel above the driver's side door or on the central console.
The car main window control switch button usually has two positions, up to indicate that the window is open, down to indicate that the window is closed.
The button usually comes with an automatic lift function, and the window can be fully opened or closed with a click of the button.
The button has a bidirectional operation function, that is, you can control the rise or fall of the window by holding the button up or down.