2015 Buick Regal Owner Manual - Page 177

8-2 Climate Controls The following climate control settings use more fuel: ... 1. Driver and Passenger Temperature Controls 2. Heated Front Seats (If Equipped) 3. Defrost 4. Air Delivery Mode Controls 5. Fan Control 6. Power 7. Rear Window Defogger 8. A/C (Air Conditioning) 9. Recirculation 10. AUTO (Automatic Operation) 11. SYNC (Synchronized Temperature) Climate Control Influence on eAssist Operation and Fuel Economy (If Equipped) The climate control system depends on other vehicle systems for heat and power input. Certain climate control settings can lead to higher fuel usage and/or fewer auto stops. Automatic Operation The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature. When the AUTO indicator light is on, the system is in full automatic operation. If the air delivery mode, fan speed, recirculation, or air conditioning setting is adjusted, the AUTO indicator turns off and the selected settings will appear on the display. To place the system in automatic mode: 1. Press AUTO. 2. Set the temperature. Allow the system time to stabilize. Adjust the temperature as needed for best comfort. To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather. The recirculation Comfort air conditioning mode. The defrost mode. Extreme temperature settings, such as 15°C (60°F) or 32°C (90°F). High fan speed settings. Use the full automatic control as described under "Automatic Operation." Use eco air conditioning, instead of the comfort air conditioning. Select a temperature setting that is higher in hot weather and lower in cold weather. Turn off the air conditioning when it is not needed. Only use defrost to clear the windows. . To help reduce fuel usage: . . . . .