WHILE DRIVING IN PRE-DAWN HOURS (HEADLIGHTS & DEFROSTERS ON), STARTED SMELLING SOMETHING MELTING OR BURNING. THEN INSTRUMENT PANEL LIGHTS WENT OUT FOR A FEW SECONDS. INSTRUMENT PANEL LIGHTS THEN CAME BACK ON & STARTED FLASHING ON & OFF REALLY FAST. AT THAT SAME TIME, DOOR LOCKS STARTED LOCKING & UNLOCKING REPEATEDLY ON THEIR OWN. BURNING & MELTING SMELL WAS GETTING STRONGER. AS I WAS PULLING OVER, I ENTERED A MORE WELL-LIT AREA AND SAW SMOKE ACCUMULATING INSIDE CAR NEAR ROOF & TOP OF WINDSHIELD. SHUT CAR OFF IMMEDIATELY. *TR