NHTSA Complaint #10184415 — 1990 BUICK REATTA

THERE IS A SERIOUS DESIGN PROBLEM WITH THE 1990 BUICK REATTA. THE CAR HAS AN AUTOMATIC HEATING AND AIR CONDITIONING SYSTEM. THIS SYSTEM WILL NOT ALLOW YOU TO TURN ON THE DEFROSTER TO CLEAR THE WINDSHIELD FROM FOGGING UP WHEN THE OUTSIDE TEMPERATURE IS ABOVE 39 DEGREES FAHRENHEIT IF THE CAR IS LOW ON FREON. I REALIZE THAT WINDSHIELDS CLEAR UP FASTER IF THE AIR IS DEHUMIDIFIED BY THE AIR CONDITIONING SYSTEM. THE COMPUTER OF THIS SYSTEM WILL NOT ALLOW ANY AIR TO BE BLOWN ON THE WINDSHIELD IF THE FREON PRESSURE SWITCH DETECTS LOW FREON PRESSURE. THE SYSTEM SHOULD ALLOW AIR WARM AIR TO BE BLOWN ON THE WINDSHIELD TO DEFOG THE WINDSHIELD. IT IS AN UNSAFE DESIGN WHICH WILL NOT ALLOW YOU TO DEFOG YOUR WINDSHIELD BECAUSE OF A BAD FREON SWITCH OR BECAUSE OF LOW FREON. IN LOUISIANA THERE ARE MANY DAYS IN WHICH THE WINDSHIELD NEEDS DEFOGGING DUE TO HIGH HUMIDITY OR RAIN. *JB