You have to pull the door panel off - it is a pretty easy job to replace the regulator and you can buy them cheap online
How to replace a window and regulator on a 1998 checy malibu?
To change the power window motor regulator in a 2004 Chevy Colorado, first disconnect the vehicle battery to ensure safety. Remove the door panel by unscrewing any visible screws and gently prying it away from the door frame. Once the panel is off, disconnect the electrical connector from the window motor, unbolt the old regulator and motor assembly, and then replace it with the new unit. Finally, reassemble the door panel and reconnect the battery to test the new regulator.
You must replace the entire regulator.Here's howhttp://www.ricksfreeautorepairadvice.com/repair-topics/window-power-repair/replace-a-power-window-regulator
The process to replacing the window regulator involves removing the door panel,connections to the window switch and also the door handle bezels. I've included a video that will show you exactly what tools you need and how to get at the window regulator so that it can be replaced.
I'm not sure where there might be a diagram. However I'll post a really good video that will walk you through this process step by step, on how to fix your broken Chevy HHR window regulator. Hope this helps, 1ATony
You need to replace the power window regulator. Go to 1aauto.com and search for the video showing you how to do this.
It is a picture showing a complete assembly of the regulator. Its main purpose is to control movements of the window.
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