automatic down power drivers side window
 

i didnt quite know how to word the title lol but on my truck it has power windows and the driver side button says auto on it so i assumed i could just push it once and the window would go all the way down but it dont so i pushed it harder lol and still nothin so wuts the deal cause no matter how i push it down the window wont go down on its own i have to hold the button the whole time so could ya guys help me out please lol thanks