NHTSA Complaint #11063471 — 2011 BUICK ENCLAVE

THE FUEL MILEAGE READER IS NOT WORKING PROPERLY...SOMETIMES WHEN I GET GAS IT REGISTERS MORE MILEAGE THAN IT SHOULD. ...SUCH AS IT MAY BE ON EMPTY AND THE AMOUNT OF FUEL THAT I PUT IN IT SHOULD REGISTER THAT I WOULD GET 115 MILES OFF IT....BUT IT WILL REGISTER THAT I SHOULD GET 150 MILES. SOMETIMES IT REGISTERS RIGHT AND I CAN DRIVE ONLY 10 MILES AND THE NUMBER OF MILES THAT I CAN TRAVEL WILL DROP BY 28 MILES OR MORE. IT CHANGES AS I DRIVE BUT DOESN'T SHOW THE PROPER MILEAGE LEFT AS BE APPROPRIATE. ALSO MY HEAT IS ONLY COMING OUT THE VENTS IN THE REAR AND THE TOP SIDE DASH VENTS AND THE BOTTOM DRIVER SIDE FLOOR VENT. THE FRONT DASH VENTS HAVE NO HEAT AND THE BOTTOM FLOOR PASSENGER VENT IS BLOWING COOL AIR. THE HEAT PROBLEM IS WHEN DRIVING AND SITING. THE MILEAGE READER IS OCCURRING WHEN DRIVING AND AFTER REFILLING AND SOMETIMES WHILE SITTING WITH THE CAR RUNNING.