1999 Buick LeSabre Owner's Manual - Page 133

First Edition for Buick LeSabre Owner's Manual - 1999 On sunny days, when the air is moderately warm or cool, use BI-LEV to deliver warm air to the floor and cooler air to the middle instrument panel outlets. On days like these, the sun may adequately warm your upper body, but your lower body may not be warm enough. To warm or cool the air delivered, adjust the TEMPERATURE lever. The amount of fresh air entering the vehicle is limited when RECIRC is selected. This is helpful when you are trying to cool the air in your vehicle or limit the air entering the vehicle. If your vehicle has the Dual Automatic Comfortemp system and it is set for AUTO, on very hot days, the system will automatically enter the RECIRC mode and the temperature door will be positioned at the full cold position for maximum cooling. If the system is not in the AUTO mode, RECIRC should be selected to provide maximum cooling. You can choose the extreme comfort setting of 60_F (16_C), but the system will not cool any faster by choosing the extreme comfort setting. When the air conditioner is on, you may sometimes notice slight changes in your vehicle's engine speed and power. This is normal because the system is designed to cycle the compressor on and off to keep the desired temperature. yellowblue Heating If your vehicle has the electronic touch system, on cold days, use HTR with the TEMPERATURE lever toward WARM. If your vehicle has the Dual Automatic Comfortemp system, and on cold days, if the AUTO mode is selected, the system will automatically direct the air toward the floor and the temperature door will be positioned at the full hot position. You can choose the extreme comfort setting of 90_F (32_C) but the system will not warm up any faster by selecting the extreme comfort setting. If the outside temperature is cold, the fan will be delayed to avoid blowing cold air. Pushing the FAN, AIR FLOW or FRONT buttons will override this delay, turn off the AUTO mode and change the fan speed. With each system, outside air will be brought in and sent through the floor outlets. The heater works best if you keep your windows closed while using it. 3-7