I have a 2007 GMC Acadia and out of no where the power lock and power window quit working just on the front passenger door. Any ideas as to what the problem could be?

SOURCE: HAVE A 03 GMC SIERRA

I had the same problem in my wife's 2003 Yukon Denali. The power seats and passengers side window wouldn't work. Turned out to be a blown Buss Type fuse in the Underhood Fuse Block. It is the one marked MBEC 1 50amp. Hard to tell if the are blown so look very carefully. Should look like a hoop with two shiny solderlooking bubbles on either side. On my blown fuse, it caught my attention because it looked like the solder was missing and I had to look very closely to see the bottom of the "hoop" was open. They are very hard to remove and must be pulled straight up.
This type of fuse looks like a red square with a clear plastic top showing the fuse link under the plastic. On my vehicle it is on the top row second one from the left.

SOURCE: 2004 Jeep Grand Cherokee driver side power windows do not work

I had the same problem with now power to windows, mirrors and seat. The common soulution is the orange and or black wire in the boot have broken between the door and post.

SOURCE: 2003 Yukon XL Front passenger side door: Electric

yes it does sound like that is your problem. try checking for used one.

SOURCE: 2005 Chrysler Pacifica passenger doors have no power

If your alarm went off, it could be that someone had tried to break into your car. They most likely may have cut some of the wires inside your door with what ever device they may have been using. Look for evidence between the bottom of the windows and doors where the problem is. If not, then it is possible that your automatic window assemblies are malfunctioning. Do you hear the motors run on the windows when you go up or down with the switch? I also have a Pacifica, 2005, however no window problems yet.

Good Luck,

Ray

SOURCE: My Power window on my 2003 GMC Sierra 1500 Truck

if your main switch panel still works the passenger window and if door locks still work probaly bad window motor