I’m having problems with my power windows. I replaced the power window switch on driver side door, it worked great for about a week, tonight after it got really cold and snowing it decided that when I backed into my driveway the window on driver door started going down on its own. It will go back up when I push button but when I release switch it goes down. Every time the key is turned it goes down. All other windows work fine. Any clue why this started and how to fix it?
Three reasons come to mind right off that would cause the power window to go down on its own. One would be the new part has an internal flaw. I would however exclude that if this is the reason you replaced the power window switch in the first place. The second reason would also be the most common. The act of opening and closing the door over a period of time takes a toll on the wiring harness that runs through the door jam. These wires become brittle and crack and break. When this happens, the wires can sometimes touch one another causing some weird things to happen. If you have the old switch, swap it out and see what happens. Then perform the “wiggle test” on the wiring if there was no change after swapping out the power window switch assembly.
The third reason may have to do with the “AUTO” feature for the drivers side power window. This too is built into the drivers side power windows switch assembly.
Auto Power Windows
To stop the window while it is lowering, press the front of the switch. To raise the window, press and hold the front of the switch.
2003 Chevy Malibu Power Windows Wiring Diagram
Use this diagram to trace any wiring issues you may have involving the power windows circuit.