THE WIRING CONNECTING THE BLOWER MOTOR TO THE RESISTOR UNDER THE GLOVE BOX HAS MELTED THE CONNECTION BETWEEN THE TWO RESULTING IN SMOKE AND TOXIC FUMES FROM BURNING WIRES WHILE VEHICLE WAS IN OPERATION WITH A/C OPERATING ON HIGH. SHUTTING THE VEHICLE OFF STOPPED ANY FURTHER DAMAGE, I HAVE GOOGLED THIS ISSUE AND APPEARS AS THOUGH ITS A KNOWN PROBLEM WITHOUT GM ACKNOWLEDGING THE ISSUE AND DOING ANY THING TO REMEDY THE ISSUE, ACCORDING TO COMPLAINTS FILED WITH CARCOMPLAINTS.COM. *TR