2007 TRAILBLAZER SS DRIVERS DOOR MODULE/WINDOW SWITCH ON MY NORMAL COMMUTE TO WORK, I HAD NOTICED A FAINT BURNING SMELL OF PLASTIC THAT WOULD ONLY LINGER IN THE CABIN FOR A FEW SECONDS. THE SMELL CONTINUED FOR ALMOST A WEEK WITH THE SAME SYMPTOMS AND THEN DISAPPEARED FOR ALMOST 4 DAYS. AFTER THE SMELL OF BURNING PLASTIC WAS NO LONGER THERE, ONE NIGHT WHILE DRIVING, THE DRIVERS DOOR MODULE LIGHTS (DRIVERS, PASSENGER, REAR WINDOWS, WINDOW LOCKS, AND LOCK) WERE FLICKERING AND NOTICEABLY POWER SURGING. I WAS CONCERNED ABOUT THIS ISSUE SO I HAD DONE SOME RESEARCH ONLINE LOOKING FOR ANY INFORMATION THAT MAY LEAD TO A SOLUTION TO MY PROBLEM AND IF ANY OTHER TRAILBLAZER OWNERS WERE EXPERIENCING THE SAME PROBLEM. SEEMED TO BE A PRETTY POPULAR PROBLEM AMONG TRAILBLAZER OWNERS RANGING FROM 2004 AND UP. SOME RESEARCH INDICATED THAT WIRES MAY HAD BEEN BROKEN INSIDE THE INSULATION THAT GOES FROM THE INTERIOR OF THE CAR TO THE DOOR. I HAD THE VEHICLE INSPECTED AT A CHEVY DEALERSHIP AND THEY TOLD ME THAT THE DDM WAS FUNCTIONAL AND JUST NEEDED A FUSE REPLACEMENT. THAT SAME NIGHT WHEN MOVING THE VEHICLE FROM THE STREET TO MY DRIVEWAY, SMOKE STARTED POURING FROM THE TOP OF THE DOOR PANEL AND IT WAS OBVIOUS THAT PLASTIC WAS BURNING AND ON FIRE. I THEN PRIED THE DRIVERS DOOR MODULE OFF AND NOTICED A DIME SIZED HOLE RIGHT UNDER WHERE THE DRIVERS WINDOW SWITCH BUTTON IS LOCATED. THAT HOLE STILL SINGING I DISCONNECTED THE DDM AND HAVE BEEN DRIVING WITH NON-OPERATIONAL WINDOWS EVER SINCE. *TR