I have a 2009 Equinox and I have had intermittent problems of the driver side rear door lock working when using the remote or using the lock switch in the front. Now, the same thing is happening with the driver door. Sometimes it will work, and sometimes it won't. I have to manually lock the door. It is the remote locks that aren't working, but only on the driver side - front and rear. Checked the fuse and it looks fine. It's puzzling that it is only the driver side AND it hasn't quit completely, just sometimes. Any ideas?