2007 GMC Envoy electrical system problems

“My switch on drivers door started on fire right after I purchased vehicle from third party. There was no warning I just smelled smoke while driving and pulled it out”

“The contact owns a 2007 GMC Envoy. The contact stated that the power switch used to adjust the front driver seat had failed to operate as needed. The contact stated that the power switch had been replaced a total of three times within a two-month time frame. Recently, the power switch had failed for a fourth time and as the contact went to replace the fuse, the fuse box was so hot that it burned the contact's right hand and left a blister. The contact did not seek any medical attention for the injury. Upon investigation, the contact discovered NHTSA Campaign Number: 12V406000 (Electrical System, Visibility) which was linked to the failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was unknown.”

“THE DAYTIME RUNNING LIGHTS (DRL) AND THE LOW BEAM HEADLIGHTS DO NOT LIGHT EVEN WHEN THE DASHBOARD LIGHT SWITCH IS PLACED IN THE 'HEADLIGHT' ON POSITION. TROUBLESHOOTING REVEALED THAT THIS FAILURE WAS CAUSED BY THE BODY CONTROL MODULE (BCM) LOCATED BENEATH THE REAR SEAT. A DIGITAL LOGIC SIGNAL FROM THIS MODULE, BASED ON SENSOR INPUTS FROM THE AMBIENT LIGHT SENSOR, PARKING BRAKE AND WINDSHIELD WIPERS, IS PROVIDED TO THE UNDER-HOOD ELECTRONIC RELAY THAT ACTIVATES THE HEADLIGHTS. THERE ARE THREE POSSIBLE SIGNAL OUTPUTS FROM THE BCM...A LOGIC LOW (LIGHTS OFF), A LOGIC HIGH (LOW BEAMS FULL ON) OR A PULSE WIDTH MODULATED SIGNAL TO CREATE THE DIMMER DRL LOW BEAM INTENSITY. IF THE BCM FAILS, THE LOW BEAM HEADLIGHTS WILL NOT TURN ON. THERE IS NO AFFIRMATIVE INPUT TO THE ELECTRONIC RELAY FROM THE LIGHT SWITCH, NOT ROUTED THROUGH THE BCM, TO ACTIVATE THE LOW BEAM HEADLAMPS. THIS IS A MAJOR SAFETY ISSUE. WHEN THE BCM FAILS AT NIGHT, THE DRIVER HAS NO LOW BEAM HEADLAMPS. THE ONLY LIGHTS AVAILABLE ARE THE FOG LAMPS OR THE HIGH BEAM LAMPS, BUT ONLY AFTER SETTING THE DASHBOARD LIGHT SWITCH TO THE HEADLAMP POSITION. HEADLAMPS ARE A NECESSITY, NOT A OPTIONAL FEATURE. THEIR…”

“THE CHECK STABILITRAK LIGHT KEEPS COMING ON CAUSING THE CHECK ENGINE LIGHT TO COME ON CAUSING ENVOY TO LOOSE POWER. WHILE DRIVING. SECOND ISSUE IS THE DRIVERS DOOR STARTED ACTING UP DIDN'T WANT TO GO UP AND NOW WILL NOT DO ANYTHING CAUSING THE ENTIRE SYSTEM TO NOT LOCK AND WORK THE MIRRORS OR ANYTHING ELECTRICAL FROM THE DOOR PANEL.”

“I ROLLED MY DRIVER'S WINDOW DOWN THIS MORNING AND TRIED TO ROLL IT BACK UP AND IT ACTED LIKE IT DIDN'T WANT TO GO BACK UP. IT STARTED TO GO UP AND THEN IT STOPPED AFTER A FEW SECONDS AND I TRIED HITTING THE BUTTON AGAIN AND NOTHING HAPPENED. THEN I HIT THE BUTTON AGAIN AND IT STARTED TO GO UP BUT VERY SLOWLY THEN IT STOPPED AGAIN. I DID THIS FOR A BIT UNTIL THE WINDOW WENT ALL THE WAY UP. THIS HAS HAPPENED A COUPLE OTHER TIMES ALSO. TODAY WAS THE 1ST TIME THAT IT REALLY DID NOT WANT TO GO BACK UP. THE VEHICLE WAS STOPPED IN A PARKING LOT AT THAT TIME.”

“DRIVER'S DOOR MASTER POWER WINDOW SWITCH MODULE WAS WORKING INTERMITTENTLY AND NOW IS INOPERABLE CAUSING ME TO BECOME LOCKED OUT OF MY VEHICLE. THERE WAS A SIMILAR RECALL TO THE SAME YEAR ENVOYS IN 2014, BUT WHEN I CHECKED THE VIN MINE WAS NOT INCLUDED IN THE RECALL, BUT AM HAVING THE SAME ISSUE”