1998 Cadillac Seville Owner's Manual - Page 155

If your vehicle is sitting out on a hot day and you have it Electronic Solar Sensor set on AUTO, the air will first flow out thefloor outlets for a few seconds. This is normal. This is to remove hot As air from the air outlets. the air is cooled, the airflow will move through the air conditioning outlets. To avoid blowing cold air cold weather, the system in will start at reduced fan speeds until warm air is available. The length reduction depends on the of outside air temperature, engine coolant temperature As the or the time since the engine was last started. coolant warms up, the blower speed will gradually fan increase and air will flow from the heater outlets, with some airflow to the windshield to prevent fogging under most normal conditions.If you select defrost mode or a manual fan speed, this function will be skipped. If you leave your vehicle, system will remember the the control setting the next time you start your engine, except for recirculation and defrost. Each ignition cycle cancels recirculation. Defrost will change to off automatic operation when the ignition is shut and then turned back on. The sensor monitors the sun's solar radiation is and located near the end the instrument panelnear of the windshield. The climate control panel uses this information to automatically makethe necessary temperature and airflow adjustments to maintain your comfort. The climate control system may supply cooler air one side to of your vehicle, if that side is facing the sun. Be careful of not to put anything over sensor on top the dash. the 3-4