How to turn on the rear air conditioning in GL8?
2 Answers
Press the button on the air volume adjustment knob, then select the wind speed when the light is on, and the rear air conditioning will turn on. Press it again to turn off the light, which adjusts the front air conditioning. The cooling function of the Buick GL8 air conditioning is controlled by the AC switch on the air conditioning control panel. When the air conditioning is turned on, the AC switch is activated, the compressor's electromagnetic clutch engages, and the compressor starts working. Related explanations are as follows: 1. Cooling principle: The compressor compresses the refrigerant into a high-temperature and high-pressure gas, which then dissipates heat to the air at the condenser in front of the car, condensing into a high-pressure liquid. After being filtered and dried by the receiver-drier, it passes through the expansion valve, where it is throttled and depressurized into a low-pressure liquid, finally reaching the evaporator inside the car. The refrigerant evaporates and absorbs heat in the evaporator, achieving cooling. 2. Temperature control: Theoretically, the most comfortable temperature for the human body is between 20-25°C. Temperatures above 28°C will feel stuffy, while temperatures below 14°C will feel too cold. Therefore, it is advisable to keep the in-car temperature between 18°C and 25°C. Choosing an appropriate air conditioning temperature is also an important aspect of air conditioning maintenance.
I often drive a Buick GL8 to pick up and drop off my family, and the method for turning on the rear air conditioning is quite intuitive. After starting the vehicle, the control panel can be seen from the back seat, located on the ceiling or the center console. Press the AUTO button to activate the automatic mode, where the system adjusts the temperature based on sensors. For manual control, rotate the temperature knob to set the desired temperature, and then use the fan button to adjust the airflow. Don’t forget to check the air recirculation mode; I usually select the recirculation mode to improve the air quality inside the car. The rear air conditioning is especially important in summer, as it helps avoid the issue of the front seats being too cold while the rear seats are too hot. Regularly cleaning the filter can reduce odors and keep the air fresher. During daily use, avoid immediately setting the fan to high speed—start with low speed and gradually increase it to save fuel and protect the motor. The operation is simple, making it easy for beginners to get the hang of it.
