How to adjust Buick Regal with refrigeration and without warm air?

1. First enter the cab of Buick Regal and find the air-conditioning control area, which is located in the middle, as shown in the figure.

2. The position marked "On/Off" in the middle of the lower row of air conditioner is the on/off button of air conditioner.

3. Turn the knobs on both sides clockwise to raise the temperature, and counterclockwise to lower the temperature.

4. The button marked AUTO in the middle of the left knob is an automatic constant temperature air conditioning switch, which can be set to constant temperature.

5. The button in the middle of the right knob is the internal circulation control button of the air conditioner.

6. Finally, the button marked with the fan is the air conditioning outlet air volume adjustment button, the up button is the air outlet air volume increase, and the down button is the air outlet air volume decrease.