1993 Cadillac Fleetwood Owner's Manual - Page 155

r air conditioning system. The flashing will continue for about minutes. two It meansyou should have your system serviced. Defroster To get fog or ice off the windshield, push the Defroster button. will The fan speed work automatically or you can choose another fan speed if you want. It will help a lot if you first clear any ice and snow from the hood and the air inlet(it's between the hood and the windshield). - Electronic Solar Sensor