VEHICLE WAS DRIVEN BACK HOME AFTER A 20 MIN JOURNEY. SWITCHED VEHICLE OFF, REMOVED KEYS, I CAME BACK TO REMOVE LAST BAG FROM VEHICLE - WHITE SMOKE WAS COMING FROM UNDER HOOD. TRIED TO PUT OUT WITH A SMALL FIRE EXTINGUISHER. FLAMES NOW COMING FROM HOOD AND OUT OF FRONT GRILLE. CALLED 911. WITHIN 20 MINS CAR WAS A TOTAL LOSS, WITH DAMAGE TO ADJACENT HOME. INFORMED INSURER AND GM CUSTOMER CARE. GM CLAIMS DEPT HAVE INVESTIGATED AND NO GM FAULT DETERMINED. 18 MONTH OLD VEHICLE MUST NOT CATCH FIRE BY ITSELF, MORE ACTION REQUIRED. VEHICLE IS NOW IN THE HANDS OF OUR INSURER. PLEASE NOTE WE ARE IN CANADA - WE ALSO HAVE INFORMED TRANSPORT - BUT WE FEEL THE US AUTHORITIES SHOULD BE AWARE. SEABRIGHT, NOVA SCOTIA, B3Z 3A3. *TR