I have a 2010 HHR that I bought a couple weeks ago. I wish I would have tested all the windows at the time but didn't. The drivers side and right rear window work but the front passenger and rear left door doesn't. When I press the window switch from the drivers or the non working window door I can hear a click but nothing happens. Could it be the motors or is there some other fuse that goes to each window? Thanks

 

If you hear a click in the door it is the motor or the tracks are obstructed.

No relays involved, they are all on the same fuse.

 

Could be dirt in the tracks, could be plastic gears stripped

 

I'm sure there are better pictures available but this will give you an idea of the parts layout inside the door.

 

Thanks for the information and links. I'm going to order 1 motor just in case and open up one of the doors.